{"id":1130,"date":"2026-04-10T07:39:27","date_gmt":"2026-04-10T07:39:27","guid":{"rendered":"https:\/\/hxcnc.com\/?page_id=1130"},"modified":"2026-05-29T05:57:49","modified_gmt":"2026-05-29T05:57:49","slug":"bearing-race-fit-parts","status":"publish","type":"page","link":"https:\/\/hxcnc.com\/zh\/product\/bearing-race-fit-parts\/","title":{"rendered":"\u5ba2\u88fd\u5316\u8ef8\u627f\u5957\u5708\u914d\u5408\u96f6\u4ef6"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1130\" class=\"elementor elementor-1130\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-aabbccdd elementor-section-stretched elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"aabbccdd\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div 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class=\"hxc-hero2-badge\">Product Category<\/div>\n            <div class=\"hxc-hero2-badge hxc-hero2-badge-amb\">H7 \/ K6 Bore \u00b7 \u22640.005 Roundness \u00b7 Ra 0.8 \u00b7 CMM<\/div>\n            <div class=\"hxc-hero2-id\">BR \/ 001 \u2014 010<\/div>\n          <\/div>\n          <h1 class=\"hxc-hero2-h1\">Round Bore for the Race<br><em>Bearing Race Fit Parts<\/em><\/h1>\n          <p class=\"hxc-hero2-sub\">Precision CNC ground bearing housings, adapter rings, and race carriers \u2014 H7 bore (outer race clearance fit) or K6\/M6 (interference fit for rotating outer race). Bore roundness \u2264 0.005 mm, Ra 0.8 \u00b5m. Non-round housings distort the outer race and shorten bearing life \u2014 we don't ship those.<\/p>\n          <div class=\"hxc-hero2-stats\">\n            <div class=\"hxc-hero2-stat\"><div class=\"hxc-hero2-stat-v\">H7 \/ K6<\/div><div class=\"hxc-hero2-stat-l\">Housing Bore<\/div><\/div>\n            <div class=\"hxc-hero2-stat\"><div class=\"hxc-hero2-stat-v\">\u22640.005<sup>mm<\/sup><\/div><div class=\"hxc-hero2-stat-l\">Bore Roundness<\/div><\/div>\n            <div class=\"hxc-hero2-stat\"><div class=\"hxc-hero2-stat-v\">Ra 0.8<sup>\u00b5m<\/sup><\/div><div class=\"hxc-hero2-stat-l\">Bore Finish<\/div><\/div>\n          <\/div>\n          <div class=\"hxc-hero2-btns\">\n            <a href=\"#hxc-cta\" class=\"hxc-btn hxc-p\">Get Instant Quote <span class=\"hxc-ar\">\u2192<\/span><\/a>\n            <a href=\"#hxc-gal\" class=\"hxc-btn hxc-o\">View Our Work<\/a>\n          <\/div>\n        <\/div>\n        <div class=\"hxc-hero2-R\">\n          <div class=\"hxc-hero2-board\">\n            <div class=\"hxc-hero2-ribbon\">\n              <span><span class=\"dot\"><\/span>PART DWG \u00b7 BR-000 BEARING HOUSING \u00b7 42CrMo4 \u00b7 BORE \u00d847 H7 \u00b7 6204 OUTER<\/span>\n              <span>ISO 9001 \u00b7 CMM ROUNDNESS \u00b7 CERT<\/span>\n            <\/div>\n            <div class=\"hxc-hero2-pin hxc-hero2-pin-a hxc-hero2-pin-1\">Round Bore = Bearing Life<\/div>\n            <div class=\"hxc-hero2-pin hxc-hero2-pin-2\">H7 \u00b7 \u22640.005 \u00b7 Ra 0.8<\/div>\n            <div class=\"hxc-hero2-scene\">\n              <svg viewBox=\"0 0 480 360\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-label=\"Bearing race fit parts technical drawing \u2014 housing block section view with circular bore containing phantom bearing assembly: outer race highlighted slate as the press-fit surface, inner race, ball complement between races, phantom shaft through center. H7 housing-bore callout. Roundness GD&amp;T 0.005 to bore datum A. Housing shoulder face perpendicularity callout. Four corners: fit class by service, roundness vs bearing life, four housing-config end-views, material table.\">\n                <defs>\n                  <linearGradient id=\"brSteel\" x1=\"0\" y1=\"0\" x2=\"0\" y2=\"1\"><stop offset=\"0\" stop-color=\"#94A3B8\"\/><stop offset=\"1\" stop-color=\"#475569\"\/><\/linearGradient>\n                  <radialGradient id=\"brGlow\" cx=\"50%\" cy=\"50%\" r=\"50%\"><stop offset=\"0\" stop-color=\"rgba(71,85,105,.8)\"\/><stop offset=\"1\" stop-color=\"transparent\"\/><\/radialGradient>\n                <\/defs>\n                <g transform=\"translate(160,196)\">\n                  <ellipse cx=\"0\" cy=\"0\" rx=\"140\" ry=\"40\" fill=\"url(#brGlow)\" opacity=\".5\"\/>\n                  <text x=\"-140\" y=\"-80\" font-family=\"Roboto Condensed,sans-serif\" font-size=\"9\" font-weight=\"700\" fill=\"#94A3B8\">BEARING HOUSING \u00b7 SECTION \u00b7 ROUND BORE PROTECTS THE BEARING<\/text>\n                  <text x=\"-140\" y=\"-70\" font-family=\"Roboto Mono,monospace\" font-size=\"5\" fill=\"rgba(148,163,184,.78)\">42CrMo4 \u00b7 BORE \u00d847 H7 \u00b7 6204 OUTER RACE \u00b7 ROUND 0.005<\/text>\n\n                  <!-- roundness GD&T -->\n                  <g transform=\"translate(-128,-58)\">\n                    <rect x=\"0\" y=\"0\" width=\"56\" height=\"10\" fill=\"none\" stroke=\"#FCD34D\" stroke-width=\".5\"\/>\n                    <line x1=\"14\" y1=\"0\" x2=\"14\" y2=\"10\" stroke=\"#FCD34D\" stroke-width=\".5\"\/>\n                    <circle cx=\"7\" cy=\"5\" r=\"3\" fill=\"none\" stroke=\"#FCD34D\" stroke-width=\".5\"\/>\n                    <text x=\"35\" y=\"7\" font-family=\"Roboto Mono,monospace\" font-size=\"6\" fill=\"#FCD34D\" text-anchor=\"middle\" font-weight=\"700\">0.005<\/text>\n                  <\/g>\n                  <text x=\"-100\" y=\"-48\" font-family=\"Roboto Mono,monospace\" font-size=\"4\" fill=\"rgba(252,211,77,.7)\">bore roundness<\/text>\n\n                  <!-- H7 callout -->\n                  <g transform=\"translate(40,-58)\">\n                    <rect x=\"0\" y=\"0\" width=\"72\" height=\"10\" fill=\"none\" stroke=\"#FCD34D\" stroke-width=\".5\"\/>\n                    <text x=\"36\" y=\"7\" font-family=\"Roboto Mono,monospace\" font-size=\"6\" fill=\"#FCD34D\" text-anchor=\"middle\" font-weight=\"700\">\u00d847 H7 \u00b7 BORE<\/text>\n                  <\/g>\n\n                  <!-- housing block (section view) -->\n                  <path d=\"M -120,-50 L 120,-50 L 120,50 L -120,50 Z\" fill=\"url(#brSteel)\" stroke=\"#1E293B\" stroke-width=\".8\"\/>\n                  <!-- hatching marks on housing material -->\n                  <g stroke=\"#1E293B\" stroke-width=\".3\" opacity=\".4\"><line x1=\"-115\" y1=\"-44\" x2=\"-95\" y2=\"-24\"\/><line x1=\"-95\" y1=\"-44\" x2=\"-75\" y2=\"-24\"\/><line x1=\"-75\" y1=\"-44\" x2=\"-55\" y2=\"-24\"\/><line x1=\"95\" y1=\"-44\" x2=\"115\" y2=\"-24\"\/><line x1=\"75\" y1=\"-44\" x2=\"95\" y2=\"-24\"\/><line x1=\"55\" y1=\"-44\" x2=\"75\" y2=\"-24\"\/><line x1=\"-115\" y1=\"24\" x2=\"-95\" y2=\"44\"\/><line x1=\"-95\" y1=\"24\" x2=\"-75\" y2=\"44\"\/><line x1=\"-75\" y1=\"24\" x2=\"-55\" y2=\"44\"\/><line x1=\"95\" y1=\"24\" x2=\"115\" y2=\"44\"\/><line x1=\"75\" y1=\"24\" x2=\"95\" y2=\"44\"\/><line x1=\"55\" y1=\"24\" x2=\"75\" y2=\"44\"\/><\/g>\n\n                  <!-- bore opening (cut through) -->\n                  <rect x=\"-50\" y=\"-22\" width=\"100\" height=\"44\" fill=\"#0F172A\"\/>\n\n                  <!-- housing bore surface highlight (top + bottom of bore in section) -->\n                  <line x1=\"-50\" y1=\"-22\" x2=\"50\" y2=\"-22\" stroke=\"#475569\" stroke-width=\"3\"\/>\n                  <line x1=\"-50\" y1=\"22\" x2=\"50\" y2=\"22\" stroke=\"#475569\" stroke-width=\"3\"\/>\n                  <text x=\"0\" y=\"-25\" font-family=\"Roboto Mono,monospace\" font-size=\"4.5\" fill=\"#94A3B8\" text-anchor=\"middle\" font-weight=\"700\">HOUSING BORE \u00b7 H7 \u00b7 DATUM A<\/text>\n                  <!-- datum A -->\n                  <g transform=\"translate(50,-22)\"><path d=\"M 0,0 L -3,-5 L 3,-5 Z\" fill=\"#fff\" stroke=\"#475569\" stroke-width=\".4\"\/><rect x=\"-3.5\" y=\"-12\" width=\"7\" height=\"7\" fill=\"#fff\" stroke=\"#475569\" stroke-width=\".4\"\/><text x=\"0\" y=\"-6.5\" font-family=\"Roboto Mono,monospace\" font-size=\"5\" fill=\"#0F172A\" text-anchor=\"middle\" font-weight=\"700\">A<\/text><\/g>\n\n                  <!-- phantom bearing outer race (dashed) -->\n                  <rect x=\"-48\" y=\"-21\" width=\"96\" height=\"6\" fill=\"rgba(71,85,105,.18)\" stroke=\"rgba(71,85,105,1)\" stroke-width=\".7\" stroke-dasharray=\"3 2\"\/>\n                  <rect x=\"-48\" y=\"15\" width=\"96\" height=\"6\" fill=\"rgba(71,85,105,.18)\" stroke=\"rgba(71,85,105,1)\" stroke-width=\".7\" stroke-dasharray=\"3 2\"\/>\n                  <text x=\"0\" y=\"-12\" font-family=\"Roboto Mono,monospace\" font-size=\"4\" fill=\"rgba(148,163,184,.85)\" text-anchor=\"middle\" font-style=\"italic\">phantom outer race \u00b7 6204<\/text>\n\n                  <!-- phantom inner race -->\n                  <rect x=\"-48\" y=\"-8\" width=\"96\" height=\"4\" fill=\"rgba(148,163,184,.12)\" stroke=\"rgba(148,163,184,.8)\" stroke-width=\".5\" stroke-dasharray=\"2 1\"\/>\n                  <rect x=\"-48\" y=\"4\" width=\"96\" height=\"4\" fill=\"rgba(148,163,184,.12)\" stroke=\"rgba(148,163,184,.8)\" stroke-width=\".5\" stroke-dasharray=\"2 1\"\/>\n\n                  <!-- ball complement (between races) -->\n                  <g fill=\"rgba(148,163,184,.7)\" stroke=\"rgba(71,85,105,1)\" stroke-width=\".4\">\n                    <circle cx=\"-32\" cy=\"-11\" r=\"3\"\/><circle cx=\"-32\" cy=\"11\" r=\"3\"\/>\n                    <circle cx=\"-16\" cy=\"-11\" r=\"3\"\/><circle cx=\"-16\" cy=\"11\" r=\"3\"\/>\n                    <circle cx=\"0\" cy=\"-11\" r=\"3\"\/><circle cx=\"0\" cy=\"11\" r=\"3\"\/>\n                    <circle cx=\"16\" cy=\"-11\" r=\"3\"\/><circle cx=\"16\" cy=\"11\" r=\"3\"\/>\n                    <circle cx=\"32\" cy=\"-11\" r=\"3\"\/><circle cx=\"32\" cy=\"11\" r=\"3\"\/>\n                  <\/g>\n\n                  <!-- phantom shaft through bearing center -->\n                  <line x1=\"-60\" y1=\"-3\" x2=\"60\" y2=\"-3\" stroke=\"rgba(148,163,184,.7)\" stroke-width=\".5\" stroke-dasharray=\"3 2\"\/>\n                  <line x1=\"-60\" y1=\"3\" x2=\"60\" y2=\"3\" stroke=\"rgba(148,163,184,.7)\" stroke-width=\".5\" stroke-dasharray=\"3 2\"\/>\n                  <text x=\"0\" y=\"2\" font-family=\"Roboto Mono,monospace\" font-size=\"3.5\" fill=\"rgba(148,163,184,.7)\" text-anchor=\"middle\" font-style=\"italic\">phantom shaft \u00d820<\/text>\n\n                  <!-- housing shoulder face perpendicularity -->\n                  <g transform=\"translate(-128,32)\">\n                    <rect x=\"0\" y=\"0\" width=\"40\" height=\"10\" fill=\"none\" stroke=\"#FCD34D\" stroke-width=\".5\"\/>\n                    <line x1=\"14\" y1=\"0\" x2=\"14\" y2=\"10\" stroke=\"#FCD34D\" stroke-width=\".5\"\/>\n                    <g transform=\"translate(7,5)\"><line x1=\"-3\" y1=\"2\" x2=\"3\" y2=\"2\" stroke=\"#FCD34D\" stroke-width=\".5\"\/><line x1=\"-3\" y1=\"-3\" x2=\"0\" y2=\"0\" stroke=\"#FCD34D\" stroke-width=\".5\"\/><line x1=\"3\" y1=\"-3\" x2=\"0\" y2=\"0\" stroke=\"#FCD34D\" stroke-width=\".5\"\/><\/g>\n                    <text x=\"28\" y=\"7\" font-family=\"Roboto Mono,monospace\" font-size=\"6\" fill=\"#FCD34D\" text-anchor=\"middle\" font-weight=\"700\">0.01 A<\/text>\n                  <\/g>\n                  <text x=\"-90\" y=\"42\" font-family=\"Roboto Mono,monospace\" font-size=\"4\" fill=\"rgba(252,211,77,.7)\">shoulder \u22a5 to bore<\/text>\n\n                  <!-- centre axis -->\n                  <line x1=\"-130\" y1=\"0\" x2=\"130\" y2=\"0\" stroke=\"rgba(71,85,105,.5)\" stroke-width=\".3\" stroke-dasharray=\"6 2 1 2\"\/>\n\n                  <!-- diameter dim -->\n                  <line x1=\"60\" y1=\"-22\" x2=\"60\" y2=\"22\" stroke=\"#94A3B8\" stroke-width=\".5\"\/>\n                  <text x=\"68\" y=\"3\" font-family=\"Roboto Mono,monospace\" font-size=\"6\" fill=\"#94A3B8\" font-weight=\"700\">\u00d847<\/text>\n                <\/g>\n\n                <g transform=\"translate(20,30)\">\n                  <rect x=\"0\" y=\"0\" width=\"172\" height=\"84\" fill=\"rgba(15,23,42,.4)\" stroke=\"#475569\" stroke-width=\"1\" stroke-dasharray=\"4 3\" rx=\"6\"\/>\n                  <text x=\"10\" y=\"14\" font-family=\"Roboto Mono,monospace\" font-size=\"8\" fill=\"rgba(255,255,255,.55)\" letter-spacing=\"1\">FIT \u00b7 BY SERVICE<\/text>\n                  <line x1=\"10\" y1=\"22\" x2=\"162\" y2=\"22\" stroke=\"rgba(255,255,255,.2)\" stroke-width=\".5\"\/>\n                  <text x=\"14\" y=\"30\" font-family=\"Roboto Mono,monospace\" font-size=\"5.5\" fill=\"rgba(255,255,255,.55)\">OUTER RACE<\/text>\n                  <text x=\"158\" y=\"30\" font-family=\"Roboto Mono,monospace\" font-size=\"5.5\" fill=\"rgba(255,255,255,.55)\" text-anchor=\"end\">BORE<\/text>\n                  <g font-family=\"Roboto Mono,monospace\" font-size=\"6\">\n                    <rect x=\"10\" y=\"34\" width=\"152\" height=\"11\" fill=\"rgba(71,85,105,.45)\" rx=\"2\"\/>\n                    <text x=\"14\" y=\"42\" fill=\"#CBD5E1\" font-weight=\"700\">Stationary \u25c0<\/text><text x=\"158\" y=\"42\" fill=\"#CBD5E1\" font-weight=\"700\" text-anchor=\"end\">H7<\/text>\n                    <text x=\"14\" y=\"54\" fill=\"#fff\">Rotating<\/text><text x=\"158\" y=\"54\" fill=\"rgba(255,255,255,.75)\" text-anchor=\"end\">K6<\/text>\n                    <text x=\"14\" y=\"64\" fill=\"#fff\">Heavy \/ shock<\/text><text x=\"158\" y=\"64\" fill=\"rgba(255,255,255,.75)\" text-anchor=\"end\">M6<\/text>\n                    <text x=\"14\" y=\"74\" fill=\"#FCD34D\">Very heavy load<\/text><text x=\"158\" y=\"74\" fill=\"rgba(252,211,77,.7)\" text-anchor=\"end\">P6<\/text>\n                  <\/g>\n                <\/g>\n                <g transform=\"translate(290,30)\">\n                  <rect x=\"0\" y=\"0\" width=\"180\" height=\"84\" fill=\"rgba(15,23,42,.4)\" stroke=\"#475569\" stroke-width=\"1\" stroke-dasharray=\"4 3\" rx=\"6\"\/>\n                  <text x=\"10\" y=\"14\" font-family=\"Roboto Mono,monospace\" font-size=\"8\" fill=\"rgba(255,255,255,.55)\" letter-spacing=\"1\">ROUNDNESS \u00b7 BRG LIFE<\/text>\n                  <line x1=\"10\" y1=\"22\" x2=\"170\" y2=\"22\" stroke=\"rgba(255,255,255,.2)\" stroke-width=\".5\"\/>\n                  <text x=\"14\" y=\"30\" font-family=\"Roboto Mono,monospace\" font-size=\"5.5\" fill=\"rgba(255,255,255,.55)\">BORE ROUND<\/text>\n                  <text x=\"166\" y=\"30\" font-family=\"Roboto Mono,monospace\" font-size=\"5.5\" fill=\"rgba(255,255,255,.55)\" text-anchor=\"end\">L10 LIFE<\/text>\n                  <g font-family=\"Roboto Mono,monospace\" font-size=\"6\">\n                    <rect x=\"10\" y=\"34\" width=\"160\" height=\"11\" fill=\"rgba(71,85,105,.45)\" rx=\"2\"\/>\n                    <text x=\"14\" y=\"42\" fill=\"#CBD5E1\" font-weight=\"700\">\u2264 0.005 mm \u25c0<\/text><text x=\"166\" y=\"42\" fill=\"#CBD5E1\" font-weight=\"700\" text-anchor=\"end\">100%<\/text>\n                    <text x=\"14\" y=\"54\" fill=\"#fff\">0.010 mm<\/text><text x=\"166\" y=\"54\" fill=\"rgba(255,255,255,.75)\" text-anchor=\"end\">~85%<\/text>\n                    <text x=\"14\" y=\"64\" fill=\"#fff\">0.020 mm<\/text><text x=\"166\" y=\"64\" fill=\"rgba(255,255,255,.75)\" text-anchor=\"end\">~60%<\/text>\n                    <text x=\"14\" y=\"74\" fill=\"#FCD34D\">0.050 mm<\/text><text x=\"166\" y=\"74\" fill=\"rgba(252,211,77,.7)\" text-anchor=\"end\">&lt; 40%<\/text>\n                  <\/g>\n                <\/g>\n                <g transform=\"translate(20,232)\">\n                  <rect x=\"0\" y=\"0\" width=\"172\" height=\"108\" fill=\"rgba(15,23,42,.4)\" stroke=\"#475569\" stroke-width=\"1\" stroke-dasharray=\"4 3\" rx=\"6\"\/>\n                  <text x=\"10\" y=\"14\" font-family=\"Roboto Mono,monospace\" font-size=\"8\" fill=\"rgba(255,255,255,.55)\" letter-spacing=\"1\">HOUSING \u00b7 CONFIG<\/text>\n                  <g transform=\"translate(28,48)\">\n                    <rect x=\"-10\" y=\"-10\" width=\"20\" height=\"20\" fill=\"rgba(71,85,105,.35)\" stroke=\"#94A3B8\" stroke-width=\".6\"\/>\n                    <circle cx=\"0\" cy=\"0\" r=\"5\" fill=\"rgba(15,23,42,.6)\" stroke=\"#CBD5E1\" stroke-width=\".5\"\/>\n                    <text x=\"0\" y=\"22\" font-family=\"Roboto Mono,monospace\" font-size=\"4.5\" fill=\"#CBD5E1\" text-anchor=\"middle\" font-weight=\"700\">INTEGRAL \u25c0<\/text>\n                    <text x=\"0\" y=\"28\" font-family=\"Roboto Mono,monospace\" font-size=\"3.5\" fill=\"rgba(148,163,184,.65)\" text-anchor=\"middle\">one piece<\/text>\n                  <\/g>\n                  <g transform=\"translate(64,48)\">\n                    <rect x=\"-10\" y=\"-10\" width=\"20\" height=\"20\" fill=\"rgba(71,85,105,.35)\" stroke=\"#94A3B8\" stroke-width=\".6\"\/>\n                    <line x1=\"-10\" y1=\"0\" x2=\"10\" y2=\"0\" stroke=\"#FCD34D\" stroke-width=\".6\"\/>\n                    <circle cx=\"0\" cy=\"0\" r=\"5\" fill=\"rgba(15,23,42,.6)\" stroke=\"#CBD5E1\" stroke-width=\".5\"\/>\n                    <text x=\"0\" y=\"22\" font-family=\"Roboto Mono,monospace\" font-size=\"4.5\" fill=\"#CBD5E1\" text-anchor=\"middle\" font-weight=\"700\">SPLIT<\/text>\n                    <text x=\"0\" y=\"28\" font-family=\"Roboto Mono,monospace\" font-size=\"3.5\" fill=\"rgba(148,163,184,.65)\" text-anchor=\"middle\">2-piece bolted<\/text>\n                  <\/g>\n                  <g transform=\"translate(102,48)\">\n                    <rect x=\"-10\" y=\"-10\" width=\"20\" height=\"20\" fill=\"rgba(71,85,105,.35)\" stroke=\"#94A3B8\" stroke-width=\".6\"\/>\n                    <circle cx=\"0\" cy=\"0\" r=\"7\" fill=\"rgba(148,163,184,.18)\" stroke=\"#CBD5E1\" stroke-width=\".5\"\/>\n                    <circle cx=\"0\" cy=\"0\" r=\"5\" fill=\"rgba(15,23,42,.6)\" stroke=\"#CBD5E1\" stroke-width=\".5\"\/>\n                    <text x=\"0\" y=\"22\" font-family=\"Roboto Mono,monospace\" font-size=\"4.5\" fill=\"#CBD5E1\" text-anchor=\"middle\" font-weight=\"700\">SLEEVE-P<\/text>\n                    <text x=\"0\" y=\"28\" font-family=\"Roboto Mono,monospace\" font-size=\"3.5\" fill=\"rgba(148,163,184,.65)\" text-anchor=\"middle\">pressed<\/text>\n                  <\/g>\n                  <g transform=\"translate(140,48)\">\n                    <rect x=\"-10\" y=\"-10\" width=\"20\" height=\"20\" fill=\"rgba(71,85,105,.35)\" stroke=\"#94A3B8\" stroke-width=\".6\"\/>\n                    <rect x=\"-9\" y=\"-2\" width=\"18\" height=\"4\" fill=\"rgba(148,163,184,.18)\" stroke=\"#CBD5E1\" stroke-width=\".5\"\/>\n                    <circle cx=\"0\" cy=\"0\" r=\"5\" fill=\"rgba(15,23,42,.6)\" stroke=\"#CBD5E1\" stroke-width=\".5\"\/>\n                    <text x=\"0\" y=\"22\" font-family=\"Roboto Mono,monospace\" font-size=\"4.5\" fill=\"#CBD5E1\" text-anchor=\"middle\" font-weight=\"700\">SLEEVE-F<\/text>\n                    <text x=\"0\" y=\"28\" font-family=\"Roboto Mono,monospace\" font-size=\"3.5\" fill=\"rgba(148,163,184,.65)\" text-anchor=\"middle\">flanged<\/text>\n                  <\/g>\n                  <line x1=\"14\" y1=\"88\" x2=\"158\" y2=\"88\" stroke=\"rgba(255,255,255,.15)\" stroke-width=\".4\"\/>\n                  <text x=\"86\" y=\"98\" font-family=\"Roboto Mono,monospace\" font-size=\"5\" fill=\"rgba(255,255,255,.65)\" text-anchor=\"middle\">SHOULDER \u22a5 TO BORE<\/text>\n                  <text x=\"86\" y=\"104\" font-family=\"Roboto Mono,monospace\" font-size=\"4\" fill=\"rgba(148,163,184,.85)\" text-anchor=\"middle\" font-weight=\"700\">\u2264 0.01 PERPENDICULARITY<\/text>\n                <\/g>\n                <g transform=\"translate(220,232)\">\n                  <rect x=\"0\" y=\"0\" width=\"252\" height=\"108\" fill=\"rgba(15,23,42,.4)\" stroke=\"#475569\" stroke-width=\"1\" stroke-dasharray=\"4 3\" rx=\"6\"\/>\n                  <text x=\"10\" y=\"14\" font-family=\"Roboto Mono,monospace\" font-size=\"8\" fill=\"rgba(255,255,255,.55)\" letter-spacing=\"1\">MATERIAL \u00b7 USE<\/text>\n                  <line x1=\"10\" y1=\"22\" x2=\"242\" y2=\"22\" stroke=\"rgba(255,255,255,.2)\" stroke-width=\".5\"\/>\n                  <text x=\"14\" y=\"32\" font-family=\"Roboto Mono,monospace\" font-size=\"6\" fill=\"rgba(255,255,255,.55)\">MATERIAL<\/text>\n                  <text x=\"138\" y=\"32\" font-family=\"Roboto Mono,monospace\" font-size=\"6\" fill=\"rgba(255,255,255,.55)\">HRC<\/text>\n                  <text x=\"238\" y=\"32\" font-family=\"Roboto Mono,monospace\" font-size=\"6\" fill=\"rgba(255,255,255,.55)\" text-anchor=\"end\">USE<\/text>\n                  <line x1=\"10\" y1=\"38\" x2=\"242\" y2=\"38\" stroke=\"rgba(255,255,255,.1)\" stroke-width=\".4\"\/>\n                  <g font-family=\"Roboto Mono,monospace\" font-size=\"6.5\">\n                    <rect x=\"10\" y=\"40\" width=\"232\" height=\"11\" fill=\"rgba(71,85,105,.45)\" rx=\"2\"\/>\n                    <text x=\"14\" y=\"48\" fill=\"#CBD5E1\" font-weight=\"700\">42CrMo4 IH \u25c0<\/text><text x=\"138\" y=\"48\" fill=\"#CBD5E1\" font-weight=\"700\">52\u201358<\/text><text x=\"138\" y=\"48\" fill=\"#CBD5E1\" font-weight=\"700\" text-anchor=\"end\"><\/text><text x=\"238\" y=\"48\" fill=\"#CBD5E1\" font-weight=\"700\" text-anchor=\"end\">gearbox \/ auto<\/text>\n                    <line x1=\"10\" y1=\"54\" x2=\"242\" y2=\"54\" stroke=\"rgba(255,255,255,.08)\" stroke-width=\".3\"\/>\n                    <text x=\"14\" y=\"64\" fill=\"#fff\">SUS316L<\/text><text x=\"138\" y=\"64\" fill=\"rgba(255,255,255,.75)\">200<\/text><text x=\"238\" y=\"64\" fill=\"rgba(255,255,255,.65)\" text-anchor=\"end\">food \/ marine<\/text>\n                    <line x1=\"10\" y1=\"68\" x2=\"242\" y2=\"68\" stroke=\"rgba(255,255,255,.08)\" stroke-width=\".3\"\/>\n                    <text x=\"14\" y=\"78\" fill=\"#fff\">Al 7075 HA<\/text><text x=\"138\" y=\"78\" fill=\"rgba(255,255,255,.75)\">HV400<\/text><text x=\"238\" y=\"78\" fill=\"rgba(255,255,255,.65)\" text-anchor=\"end\">cobot \/ UAV<\/text>\n                    <line x1=\"10\" y1=\"82\" x2=\"242\" y2=\"82\" stroke=\"rgba(255,255,255,.08)\" stroke-width=\".3\"\/>\n                    <text x=\"14\" y=\"92\" fill=\"#fff\">20CrMnTi C<\/text><text x=\"138\" y=\"92\" fill=\"rgba(255,255,255,.75)\">58\u201362<\/text><text x=\"238\" y=\"92\" fill=\"rgba(255,255,255,.65)\" text-anchor=\"end\">heavy industrial<\/text>\n                    <line x1=\"10\" y1=\"96\" x2=\"242\" y2=\"96\" stroke=\"rgba(255,255,255,.08)\" stroke-width=\".3\"\/>\n                    <text x=\"14\" y=\"105\" fill=\"rgba(203,213,225,.85)\">GCr15 SUJ2<\/text><text x=\"138\" y=\"105\" fill=\"rgba(203,213,225,.7)\">60\u201362<\/text><text x=\"238\" y=\"105\" fill=\"rgba(203,213,225,.65)\" text-anchor=\"end\">bearing-grade ring<\/text>\n                  <\/g>\n                <\/g>\n                <text x=\"468\" y=\"20\" font-family=\"Roboto Mono,monospace\" font-size=\"8\" fill=\"rgba(255,255,255,.4)\" text-anchor=\"end\" letter-spacing=\"1\">SCALE 1:1 \u00b7 MM<\/text>\n              <\/svg>\n            <\/div>\n            <div class=\"hxc-hero2-chips\">\n              <div class=\"hxc-hero2-chip\"><div class=\"hxc-hero2-chip-v\">Gearbox \u00b7 Auto \u00b7 Wind \u00b7 Marine \u00b7 Robot \u00b7 Conveyor<\/div><div class=\"hxc-hero2-chip-l\">Applications<\/div><\/div>\n              <div class=\"hxc-hero2-chip\"><div class=\"hxc-hero2-chip-v\">42CrMo4 \u00b7 20CrMnTi \u00b7 SUS316L \u00b7 Al 7075 \u00b7 GCr15<\/div><div class=\"hxc-hero2-chip-l\">Materials<\/div><\/div>\n              <div class=\"hxc-hero2-chip\"><div class=\"hxc-hero2-chip-v\">48<span>hr<\/span> Quote \u00b7 5-Day Proto<\/div><div class=\"hxc-hero2-chip-l\">Service<\/div><\/div>\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <div class=\"hxc-stats\">\n    <div class=\"hxc-sg\">\n      <div class=\"hxc-st\"><div class=\"hxc-sn\">H7 \/ K6<\/div><div class=\"hxc-sl2\">Housing Bore Class<br>stationary \/ rotating outer<\/div><\/div>\n      <div class=\"hxc-st\"><div class=\"hxc-sn\">\u22640.005mm<\/div><div class=\"hxc-sl2\">Bore Roundness<br>protects bearing L10 life<\/div><\/div>\n      <div class=\"hxc-st\"><div class=\"hxc-sn\">Ra 0.8\u00b5m<\/div><div class=\"hxc-sl2\">Bore Finish<br>consistent interference<\/div><\/div>\n      <div class=\"hxc-st\"><div class=\"hxc-sn\">5 Days<\/div><div class=\"hxc-sl2\">Fastest Delivery<br>prototype orders<\/div><\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"hxc-s-cd\" id=\"hxc-gal\">\n    <div class=\"hxc-inner\">\n      <div class=\"hxc-gh\">\n        <div>\n          <span class=\"hxc-ey\">Our Work<\/span>\n          <h2 class=\"hxc-h2\">Bearing Race Fit Parts We Have Made<\/h2>\n          <p class=\"hxc-sub\">Precision CNC machined bearing housings, adapter rings, and race carriers for gearboxes, auto, wind, marine, and industrial machinery.<\/p>\n        <\/div>\n        <a class=\"hxc-btn hxc-o\" href=\"#hxc-cta\" style=\"flex-shrink:0\">Request Similar Part <span class=\"hxc-ar\">\u2192<\/span><\/a>\n      <\/div>\n      <div class=\"hxc-gg\">\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bearing Race Fit Part \u2014 Industrial Gearbox\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-Industrial-Drive.jpg\">\n          <span class=\"hxc-gtag\">42CrMo4 \u00b7 Gearbox<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bearing Race Fit Part \u2014 Industrial Gearbox<\/div><div class=\"hxc-gm\">Bore \u00d847 H7 \u00b7 Hardened \u00b7 200 pcs<\/div><\/div><\/div>\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bearing Race Fit Part \u2014 Medical Device\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-Medical-Device.jpg\">\n          <span class=\"hxc-gtag\">SUS316L \u00b7 Medical<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bearing Race Fit Part \u2014 Medical Device<\/div><div class=\"hxc-gm\">Bore \u00d822 H6 \u00b7 Passivated \u00b7 50 pcs<\/div><\/div><\/div>\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bearing Race Fit Part \u2014 Robot Joint\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-Robot-Joint.jpg\">\n          <span class=\"hxc-gtag\">Al 7075 \u00b7 Robot<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bearing Race Fit Part \u2014 Robot Joint<\/div><div class=\"hxc-gm\">Bore \u00d830 K6 \u00b7 Anodized \u00b7 80 pcs<\/div><\/div><\/div>\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bearing Race Fit Part \u2014 Aerospace\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-Aerospace.jpg\">\n          <span class=\"hxc-gtag\">Ti Grade 5 \u00b7 Aero<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bearing Race Fit Part \u2014 Aerospace<\/div><div class=\"hxc-gm\">Bore \u00d835 H6 \u00b7 15 pcs<\/div><\/div><\/div>\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bearing Race Fit Part \u2014 Wind Pitch Drive\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-General-Machinery.jpg\">\n          <span class=\"hxc-gtag\">20CrMnTi \u00b7 Wind<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bearing Race Fit Part \u2014 Wind Pitch Drive<\/div><div class=\"hxc-gm\">Bore \u00d8120 M6 \u00b7 Carburized \u00b7 30 pcs<\/div><\/div><\/div>\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bearing Race Fit Part \u2014 Instrument\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-Precision-Instrument.jpg\">\n          <span class=\"hxc-gtag\">SUS303 \u00b7 Instrument<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bearing Race Fit Part \u2014 Instrument<\/div><div class=\"hxc-gm\">Bore \u00d816 H6 \u00b7 Ra 0.4\u00b5m \u00b7 100 pcs<\/div><\/div><\/div>\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bearing Race Fit Part \u2014 Heavy Duty\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-High-Load.jpg\">\n          <span class=\"hxc-gtag\">GCr15 \u00b7 Heavy<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bearing Race Fit Part \u2014 Heavy Duty<\/div><div class=\"hxc-gm\">Bore \u00d885 P6 \u00b7 HRC62 \u00b7 60 pcs<\/div><\/div><\/div>\n        <div class=\"hxc-gc\"><img decoding=\"async\" alt=\"Bore Roundness Verified\" src=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-Full-CMM-Report.jpg\">\n          <span class=\"hxc-gtag\">CMM Verified<\/span><div class=\"hxc-gov\"><div class=\"hxc-gn\">Bore Roundness Verified<\/div><div class=\"hxc-gm\">Talyrond report every piece<\/div><\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"hxc-s\">\n    <div class=\"hxc-inner\" style=\"text-align:center\">\n      <span class=\"hxc-ey\">How It Works<\/span>\n      <h2 class=\"hxc-h2\" style=\"margin:0 auto 10px\">From Drawing to Finished Part<\/h2>\n      <p class=\"hxc-sub\" style=\"margin:0 auto\">Upload your drawing \u2014 bore, shoulder, fit class, and bearing spec. Quote in 48 hours.<\/p>\n      <div class=\"hxc-psg\">\n        <div class=\"hxc-ps\"><div class=\"hxc-psn\">01<\/div><div class=\"hxc-pst\">Upload Drawing<\/div><div class=\"hxc-psd\">STEP, DXF, PDF, or sketch with bore, fit class, and bearing model.<\/div><\/div>\n        <div class=\"hxc-ps\"><div class=\"hxc-psn\">02<\/div><div class=\"hxc-pst\">Quote in 48h<\/div><div class=\"hxc-psd\">Material, process, fit class, and firm lead time.<\/div><\/div>\n        <div class=\"hxc-ps\"><div class=\"hxc-psn\">03<\/div><div class=\"hxc-pst\">Bore + Shoulder Ground<\/div><div class=\"hxc-psd\">Bore + shoulder in one setup, Talyrond + CMM verification.<\/div><\/div>\n        <div class=\"hxc-ps\"><div class=\"hxc-psn\">04<\/div><div class=\"hxc-pst\">Ship Worldwide<\/div><div class=\"hxc-psd\">Full dimensional + roundness report. DHL \/ FedEx \/ sea freight.<\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"hxc-s-sf\">\n    <div class=\"hxc-inner\">\n      <div style=\"text-align:center;margin-bottom:36px\">\n        <span class=\"hxc-ey\">Reviews<\/span>\n        <h2 class=\"hxc-h2\">Trusted Bearing Race Fit Parts Manufacturer<\/h2>\n      <\/div>\n      <div class=\"hxc-tsg\">\n        <div class=\"hxc-tsi hxc-rv\"><div class=\"hxc-tss\">\u2605\u2605\u2605\u2605\u2605<\/div><div class=\"hxc-tst\">\"The roundness reports matched our incoming Talyrond check to the \u00b5m. Press-fit force was consistent across the whole batch.\"<\/div><div class=\"hxc-tshr\"><\/div><div class=\"hxc-tsau\"><div class=\"hxc-tsav\">AK<\/div><div><div class=\"hxc-tsnm\">Alex K.<\/div><div class=\"hxc-tsco\">Drivetrain Engineer \u00b7 Germany<\/div><\/div><\/div><\/div>\n        <div class=\"hxc-tsi hxc-rv\"><div class=\"hxc-tss\">\u2605\u2605\u2605\u2605\u2605<\/div><div class=\"hxc-tst\">\"HXC asked us the bearing model upfront and recommended K6 instead of the H7 we had specified \u2014 saved us a field-failure campaign.\"<\/div><div class=\"hxc-tshr\"><\/div><div class=\"hxc-tsau\"><div class=\"hxc-tsav\">SL<\/div><div><div class=\"hxc-tsnm\">Sophie L.<\/div><div class=\"hxc-tsco\">Design Engineer \u00b7 France<\/div><\/div><\/div><\/div>\n        <div class=\"hxc-tsi hxc-rv\"><div class=\"hxc-tss\">\u2605\u2605\u2605\u2605\u2605<\/div><div class=\"hxc-tst\">\"Three years sourcing bearing housings from HXC. Quality consistent, lead times reliable, engineers always responsive.\"<\/div><div class=\"hxc-tshr\"><\/div><div class=\"hxc-tsau\"><div class=\"hxc-tsav\">JT<\/div><div><div class=\"hxc-tsnm\">James T.<\/div><div class=\"hxc-tsco\">Senior Engineer \u00b7 UK<\/div><\/div><\/div><\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <div class=\"hxc-s\" id=\"hxc-faq\">\n    <div class=\"hxc-inner\">\n      <span class=\"hxc-ey\">FAQ<\/span>\n      <h2 class=\"hxc-h2\">Bearing Race Fit Parts \u2014 Frequently Asked Questions<\/h2>\n      <p class=\"hxc-sub\" style=\"margin-bottom:40px\">Technical and sourcing questions answered by our engineers.<\/p>\n      <div class=\"hxc-faq-grid\">\n        <div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">What is a bearing race fit part?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\">A bearing race fit part is any precision component that <strong>holds or interfaces with a bearing outer or inner race<\/strong> \u2014 including bearing housings, adapter rings, race carriers, and end caps. The bore tolerance of the housing (H7 for floating\/sliding outer race, K6 or M6 for fixed outer race interference fit) directly determines the bearing preload, operating clearance, and whether the race can spin in service.<\/div><\/div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">What is the correct housing bore tolerance for a bearing outer race?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\">The fit depends on whether the outer race <strong>rotates relative to the load<\/strong>: <strong>Outer race stationary (most common)<\/strong>: housing bore <strong>H7<\/strong> \u2014 slight clearance to allow the outer race to shift thermally but prevent spinning; <strong>Outer race rotating<\/strong> (e.g., wheel hub bearings): housing bore <strong>K6 or M6<\/strong> \u2014 slight interference to prevent race spinning under load. The specific tolerance depends on bearing size and radial load \u2014 always check the bearing manufacturer's fit recommendation.<\/div><\/div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">What roundness is required for bearing housing bores?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\">Bearing housing bore roundness should be <strong>\u2264 50% of the bearing outer ring width tolerance<\/strong> as a rule of thumb \u2014 for most bearings, this means \u2264 0.005 mm roundness. Non-round housing bores cause the bearing outer race to distort into a non-circular shape, reducing internal clearance and changing ball contact angles, leading to premature fatigue. HXC achieves housing bore roundness \u2264 0.005 mm as standard.<\/div><\/div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">What surface finish is needed on bearing housing bores?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\">Bearing housing bore surface finish: <strong>Ra 0.8 \u00b5m<\/strong> for standard interference fit (M6\/K6) housings \u2014 this ensures consistent interference without local high spots that would create stress concentrations. <strong>Ra 1.6 \u00b5m<\/strong> is acceptable for clearance fit (H7) housings. For press-fitted sleeves or bearing rings that must be pulled out for maintenance: Ra 0.4 \u00b5m improves dimensional consistency of the pull-out force. HXC achieves all these finishes.<\/div><\/div>\n        <\/div>\n        <div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">What is the lead time?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\">Prototype (1\u20135 pcs, turned + ground): 5\u20138 days. Small batch (10\u201350 pcs): 8\u201314 days. Production (100\u20131,000 pcs): 12\u201318 days. Stainless or titanium: add 2\u20134 days. Rush production available.<\/div><\/div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">What materials are available?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\"><strong>42CrMo4<\/strong> (induction hardened) for industrial and automotive gearboxes. <strong>20CrMnTi<\/strong> (carburized) for heavy industrial and wind. <strong>SUS303\/316L stainless<\/strong> for food, pharma, marine. <strong>Al 6061\/7075<\/strong> hard-anodized for cobot and lightweight. <strong>GCr15\/SUJ2<\/strong> bearing steel for bearing-grade rings. <strong>Ti Grade 5<\/strong> for aerospace.<\/div><\/div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">What inspection report is supplied?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\">Every batch ships with a <strong>Talyrond roundness trace + CMM dimensional report<\/strong>. Bore diameter is measured at three axial positions (front, mid, rear) and roundness is verified at each. Shoulder perpendicularity to bore is reported. For interference-fit (K6\/M6) parts, the bore diameter histogram across the batch is included so the press-fit force is predictable.<\/div><\/div>\n          <div class=\"hxc-faq-item\"><button aria-expanded=\"false\" class=\"hxc-faq-q\" onclick=\"hxcFaq(this)\">Can HXC machine integrated features?<span class=\"hxc-faq-icon\">+<\/span><\/button><div class=\"hxc-faq-body\">Yes \u2014 bearing bore, retaining shoulder, oil-feed cross-holes, snap-ring grooves, seal lips, and external mounting features are all machined in the same setup, ensuring concentricity between bore and external features within 0.01 mm TIR.<\/div><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What housing bore tolerance is needed for a stationary outer race?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"H7 \u2014 slight clearance fit. For rotating outer race: K6 or M6 \u2014 slight interference fit.\"}},{\"@type\":\"Question\",\"name\":\"What roundness is required for bearing housing bores?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u2264 0.005 mm for bearing housing bores. Non-round bores distort the bearing outer race, reducing internal clearance and shortening L10 life.\"}},{\"@type\":\"Question\",\"name\":\"What is the lead time?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Prototype: 5\u20138 days. Small batch: 8\u201314 days. 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data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eb2c6eb elementor-widget elementor-widget-html\" data-id=\"eb2c6eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- HXCNC CTA Left Panel | namespace .HXCL | Elementor HTML Widget -->\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Roboto:wght@300;400;500;700;900&family=Roboto+Condensed:wght@400;700;900&family=Roboto+Mono:wght@400;500&display=swap\" rel=\"stylesheet\">\n<style>\n.HXCL{\n  --bg:#F7F9FC;--wh:#FFFFFF;--lt:#EEF3F8;\n  --tx:#1F2937;--tx1:#5B6777;--tx2:#9CA8B4;--bd:#D7E0EA;\n  --a:#2563EB;--a2:#1D4ED8;--aA:rgba(37,99,235,.07);--aC:rgba(37,99,235,.20);\n  --ac:#0F766E;--acA:rgba(15,118,110,.08);--acB:rgba(15,118,110,.15);--acC:rgba(15,118,110,.22);\n  --fh:'Roboto 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 display:flex;align-items:center;justify-content:center;font-size:15px;\n  transition:background .18s;\n}\n.HXCL .avitem:hover .ico{background:var(--acB);}\n.HXCL .avitem .at{\n  font-family:var(--fh);font-size:14px;font-weight:700;\n  color:var(--tx);margin-bottom:2px;line-height:1.2;\n}\n.HXCL .avitem .ad{\n  font-size:12px;color:var(--tx1);line-height:1.62;\n}\n\n\/* \u2500\u2500 CERT TAGS \u2500\u2500 *\/\n.HXCL .certs{\n  display:flex;flex-wrap:wrap;gap:7px;\n  padding-top:20px;border-top:1.5px solid var(--bd);\n}\n.HXCL .cert{\n  padding:4px 11px;border-radius:100px;\n  background:var(--lt);border:1px solid var(--bd);\n  font-family:var(--fm);font-size:10px;color:var(--tx2);letter-spacing:.8px;\n}\n.HXCL .cert.hi{\n  background:var(--acA);border-color:var(--acC);\n  color:var(--ac);font-weight:700;\n}\n<\/style>\n\n<div class=\"HXCL\">\n<div class=\"panel\">\n\n  <div class=\"eyebrow\">Get a Quote<\/div>\n\n  <h2 class=\"headline\">\n    Send Your Drawing.<br><em>Get a Quote.<\/em>\n  <\/h2>\n\n  <p class=\"sub\">Every enquiry includes a DFM review \u2014 tolerance feasibility, material confirmation, and process approach confirmed before production starts. MOQ 1 piece.<\/p>\n\n  <!-- Stats row -->\n  <div class=\"stats\">\n    <div class=\"stat\">\n      <div class=\"sv\">24<small>hr<\/small><\/div>\n      <div class=\"sl\">Quote Response<\/div>\n    <\/div>\n    <div class=\"stat\">\n      <div class=\"sv\">MOQ <small>1<\/small><\/div>\n      <div class=\"sl\">Prototypes OK<\/div>\n    <\/div>\n    <div class=\"stat\">\n      <div class=\"sv\">ISO<\/div>\n      <div class=\"sl\">9001:2015<\/div>\n    <\/div>\n  <\/div>\n\n  <!-- Advantage list -->\n  <div class=\"avlist\">\n    <div class=\"avitem\">\n      <div class=\"ico\">&#128208;<\/div>\n      <div>\n        <div class=\"at\">DFM Review on Every Enquiry<\/div>\n        <div class=\"ad\">Tolerance feasibility, fixturing strategy, and material confirmation. Specific, actionable feedback \u2014 not generic pushback.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#127919;<\/div>\n      <div>\n        <div class=\"at\">First Article Inspection \u2014 Standard<\/div>\n        <div class=\"ad\">FAI report on every new run. Material certs and surface treatment certs included with every shipment.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#128260;<\/div>\n      <div>\n        <div class=\"at\">Same Process: Prototype to Production<\/div>\n        <div class=\"ad\">Process plan from your prototype applies to production batches. No re-qualification when you scale.<\/div>\n      <\/div>\n    <\/div>\n    <div class=\"avitem\">\n      <div class=\"ico\">&#9881;<\/div>\n      <div>\n        <div class=\"at\">3 \/ 4 \/ 5-Axis CNC + Turning<\/div>\n        <div class=\"ad\">Complex structural parts, shafts, housings, and transmission components. 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xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M571 393Q571 407 561 418L311 668Q300 679 286 679T261 668L11 418Q0 407 0 393T11 368 36 357H536Q550 357 561 368T571 393Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t\t<select name=\"form_fields[field_0c79fc0]\" id=\"form-field-field_0c79fc0\" class=\"elementor-field-textual elementor-size-sm\">\n\t\t\t\t\t\t\t\t\t<option value=\"aluminium_6061_t6\">Aluminium 6061-T6<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"aluminium_7075_t6\">Aluminium 7075-T6<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"stainless_steel_304\">Stainless Steel 304<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"stainless_steel_316l\">Stainless Steel 316L<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"carbon_steel_4140\">Carbon Steel \/ 4140<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"titanium_ti_6al_4v\">Titanium Ti-6Al-4V<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"brass_c360\">Brass C360<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"copper\">Copper<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"peek\">PEEK<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"pom_acetal\">POM \/ Acetal<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"nylon_pa6_pa66\">Nylon PA6 \/ PA66<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"ptfe_teflon\">PTFE \/ Teflon<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"polycarbonate\">Polycarbonate<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"abs\">ABS<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"other_not_sure\">Other \/ Not sure<\/option>\n\t\t\t\t\t\t\t<\/select>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-select elementor-field-group elementor-column elementor-field-group-field_161b5ef elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_161b5ef\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tSurface Finish\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field elementor-select-wrapper remove-before \">\n\t\t\t<div class=\"select-caret-down-wrapper\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-caret-down\" viewBox=\"0 0 571.4 571.4\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M571 393Q571 407 561 418L311 668Q300 679 286 679T261 668L11 418Q0 407 0 393T11 368 36 357H536Q550 357 561 368T571 393Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t\t<select name=\"form_fields[field_161b5ef]\" id=\"form-field-field_161b5ef\" class=\"elementor-field-textual elementor-size-sm\">\n\t\t\t\t\t\t\t\t\t<option value=\"as_machined\">As-machined<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"anodised_type_ii\">Anodised Type II<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"anodised_type_iii_hard\">Anodised Type III (Hard)<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"electroplating\">Electroplating<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"powder_coating\">Powder Coating<\/option>\n\t\t\t\t\t\t\t\t\t<option value=\"black_oxide\">Black Oxide<\/option>\n\t\t\t\t\t\t\t\t\t<option 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carriers \u2014 H7 bore (outer race clearance fit) or K6\/M6 (interference fit for rotating outer race). Bore roundness \u2264 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3936,"parent":39,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1130","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Round Bore for the Race Bearing Race Fit Parts<\/title>\n<meta name=\"description\" content=\"Precision CNC ground bearing housings, adapter rings, and race carriers \u2014 H7 bore (outer race clearance fit) or K6\/M6 (interference fit for rotating outer race).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hxcnc.com\/zh\/product\/bearing-race-fit-parts\/\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Custom Bearing Race Fit Parts\" \/>\n<meta property=\"og:description\" content=\"Precision CNC ground bearing housings, adapter rings, and race carriers \u2014 H7 bore (outer race clearance fit) or K6\/M6 (interference fit for rotating outer race).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hxcnc.com\/zh\/product\/bearing-race-fit-parts\/\" \/>\n<meta property=\"og:site_name\" content=\"HXCNC | Precision CNC Machining Manufacturer\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-29T05:57:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hxcnc.com\/wp-content\/uploads\/2026\/05\/Bearing-Race-Fit-Parts-Full-CMM-Report.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1129\" \/>\n\t<meta property=\"og:image:height\" content=\"1129\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u9810\u4f30\u95b1\u8b80\u6642\u9593\" \/>\n\t<meta name=\"twitter:data1\" content=\"8 \u5206\u9418\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/\",\"url\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/\",\"name\":\"Round Bore for the Race Bearing Race Fit Parts\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hxcnc.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/hxcnc.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Bearing-Race-Fit-Parts-Full-CMM-Report.jpg\",\"datePublished\":\"2026-04-10T07:39:27+00:00\",\"dateModified\":\"2026-05-29T05:57:49+00:00\",\"description\":\"Precision CNC ground bearing housings, adapter rings, and race carriers \u2014 H7 bore (outer race clearance fit) or K6\\\/M6 (interference fit for rotating outer race).\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/#breadcrumb\"},\"inLanguage\":\"zh-TW\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-TW\",\"@id\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/#primaryimage\",\"url\":\"https:\\\/\\\/hxcnc.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Bearing-Race-Fit-Parts-Full-CMM-Report.jpg\",\"contentUrl\":\"https:\\\/\\\/hxcnc.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Bearing-Race-Fit-Parts-Full-CMM-Report.jpg\",\"width\":1129,\"height\":1129},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/bearing-race-fit-parts\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/hxcnc.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Product\",\"item\":\"https:\\\/\\\/hxcnc.com\\\/product\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Custom Bearing Race Fit Parts\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/hxcnc.com\\\/#website\",\"url\":\"https:\\\/\\\/hxcnc.com\\\/\",\"name\":\"HXCNC | Precision CNC Machining Manufacturer\",\"description\":\"HXCNC provides precision CNC machining, CNC milling, CNC turning, 5-axis machining, Swiss turning, grinding, and surface finishing services for prototypes and production parts. 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