Categorie Produs
Lider ±0.008 · M 1–20 · Până la 100:1 · DIN Q6 · MOQ 1
WG / 001 — 010
DIN 3974 Precizie
Roti din șurub și roți din șurub
Seturi de roți din șurub de înaltă precizie conform standardelor DIN 3974 / AGMA 6022 — modul 1–20, orice unghi de avans, configurație cu start simplu sau multiplu, blocare automată sau posibilitate de rotire înapoi conform aplicației. Șuruburi din oțel șlefuit, combinate cu roți din bronz fosfor sau bronz de aluminiu AB2; seturi testate cu verificare a contactului și jocului înainte de expediere.
±0.008mm
Formă de avans
M 1–20
Intervalul de module
100:1
Raport maxim
DESEN PART · WG-001 M4 i=40:1 · 42CrMo4 Șlefuit + PB2 BRONZ
DIN 3974 · ISO 9001 · CMM + TEST DE CONTACT
Filet ZI șlefuit
Auto-blocare i ≥ 20:1
Conveyor · Robot · Stage · Medical · Auto · Consumer
Aplicații
20CrMnTi · 42CrMo4 · SUS316L · PB2 · AB2 · PEEK
Materiale
48hr Citat · Proto de 5 zile · MOQ 1
Serviciu
±0.008mm
Lead Form Tolerance
DIN quality 6 achievable
DIN quality 6 achievable
M 1–20
Intervalul de module
single or multi-start
single or multi-start
100:1
Max Single-Stage Ratio
de la prototip la producție
de la prototip la producție
5 Zile
Timp de livrare cel mai rapid
comenzi de mostre
comenzi de mostre
De ce este dificil
Worm Gear Machining Challenges
Worm gear sets demand simultaneous precision in three areas: worm thread accuracy, wheel tooth geometry conjugate to the worm, and assembled contact pattern verification.
📐
Lead Form Accuracy
Worm lead form deviation directly causes wheel tooth pitting. HXC grinds the worm thread post-hardening with CBN or form wheels to DIN quality 6–7 (lead form tolerance ±0.006–0.008 mm) and Ra ≤ 0.4 µm.
⚙️
Conjugate Hob Geometry
The worm wheel must be hobbed with a hob that exactly conjugates the worm thread — same module, OD, and start count. HXC manufactures the conjugate hob for every new worm geometry.
🎯
Assembled Contact Pattern
Theoretical geometry is verified by running the assembled set on a gear tester. Contact pattern is photographed; backlash is measured. Every shipped set carries its contact-pattern record.
Lucrările noastre
Solicită piesă similară →
Worm Gear Sets We've Made
Real orders shipped to material handling, medical, automation, and entertainment customers — paired, serial-numbered, contact-pattern verified.
Steel + Bronze42CrMo4 + PB2 — Conveyor Drive
M4 · i=40:1 · Ground · 500 sets
SUS316LStainless Worm Set — Food Line
M2 · i=30:1 · Passivated · 200 sets
AlamăBrass Worm Wheel — Actuator
M1.5 · Z60 · Single-start · 400 pcs
Multi-start4-Start Steel Worm — Robot Elbow
M2 · i=15:1 · 150 pcs
Batch Order3,000 Sets — Material Handling
M3 · Zinc-plated · 20-day LT
M10 HeavyM10 Worm Set — Stage Lift Winch
M10 · i=60:1 · Self-locking · 30 sets
QCCMM Lead-Form & Profile Inspect
Zeiss CMM · 100%
M1 MicroMicro Worm Set — Medical Drive
M1 · i=50:1 · PEEK wheel · 300 sets
Specificații tehnice
Worm Gear Machining Capabilities
Four processes — from high-volume hobbed production to ultra-precision ground worms for zero-backlash positioning drives.
⚙️
Worm Turning / Milling
High-volume worms
🔬
Worm Grinding
Ultra-precizie
🏭
Wheel Hobbing
Bronze / plastic wheels
🔧
Matched Set Test
Contact & backlash
Worm Turning & Thread Milling
CNC turn-mill centres produce the worm shaft with thread form, bore, keyway, and shoulders in one setup, eliminating concentricity errors. Suitable for ZA, ZN, ZI and ZK thread forms to DIN 3975.
| Intervalul de module | 1 – 20 mm |
| Max worm OD | 250 mm |
| Lungimea maximă a arborelui | 800 mm |
| Forme filet | ZA · ZN · ZI · ZK |
| Starts | 1 – 6 oricare |
| Lead form tol. | ±0,012 mm |
| Timp de livrare | 5 – 12 zile |
| Materiale | Steel · Stainless · Al |
Worm Grinding
Post-hardening thread grinding with CBN or form wheels delivers DIN quality 6–7 lead accuracy and Ra ≤ 0.4 µm flank finish. Essential for high-efficiency, low-backlash positioning worms.
| Intervalul de module | 1 – 12 mm |
| Max worm OD | 180 mm |
| DIN quality | 6 – 7 precizie |
| Lead form tol. | ±0.006 mm |
| Finisaj suprafață Ra | 0.2 – 0.6 µm |
| Heat treatment | Case hardened |
| Timp de livrare | 10 – 18 zile |
| Materiale | 20CrMnTi · 42CrMo4 · M2 |
Worm Wheel Hobbing
Worm wheels are hobbed with a conjugate hob matching the worm's thread form and OD, ensuring correct enveloping tooth geometry. Available in phosphor bronze, cast iron, brass, nylon and PEEK.
| Intervalul de module | 1 – 16 mm |
| Max wheel OD | 700 mm |
| Lățimea maximă a feței | 200 mm |
| Tooth count | 15 – 300 |
| DIN quality | 7 – 9 |
| Typical qty | 1 – 10,000 pcs |
| Timp de livrare | 7 – 14 zile |
| Materiale | PB2 · AB2 · PEEK · Nylon |
Matched Set Testing
Every worm set is assembled on our gear tester to verify contact pattern, backlash, and transmission error before shipment. Sets are serial-numbered and paired; the test report ships with the order.
| Model de contact | Per drawing |
| Verificare joc | At nominal CD |
| Efficiency test | On request |
| Serial matching | Worm + wheel paired |
| Report format | PDF measurement |
| Centre distance tol. | Per DIN 3974 class |
| Lead time add | +1 – 2 days |
| Applicable | All sets MOQ ≥ 1 |
Studii de caz
Proiecte reale, rezultate reale
Selected orders — from one-off prototype sets to 3,000-set production runs.
Material Handling
Conveyor Right-Angle Drive Sets
Worm
42CrMo4 Ground
Wheel
Bronz PB2
Cantitate
500 sets
Timp de livrare
16 days
✓ 100% backlash checked · zero returns in 18 months
Entertainment
Stage Lift Winch (Self-Locking)
Worm
20CrMnTi HRC 60
Wheel
AB2 Al Bronze
Ratio
60:1 self-lock
Cantitate
30 sets
✓ Self-lock verified under full load · CE certified
Medical
Surgical Device Micro Worm Set
Worm
SUS316L Pass.
Wheel
PEEK
Module
M1 · i=50:1
Cantitate
300 sets
✓ Autoclave sterilisable · FDA material docs
Cum funcționează
De la Desen la Ușa Ta
Upload your CAD file or worm gear data sheet — we handle everything from thread-form selection to matched-set testing and global shipping.
01
Upload CAD / Data Sheet
STEP, DXF, DWG, PDF or worm data table (module, starts, lead angle, centre distance).
02
Quote in 48 h
Thread form recommendation, material pairing advice, self-locking analysis, firm lead time.
03
Machine & Set Test
Worm and wheel machined, then assembled on gear tester to verify contact & backlash.
04
Livrare în întreaga lume
Paired, serial-numbered, vacuum-packed. Full inspection report enclosed.
Recenzii
De încredere pentru ingineri din întreaga lume
★★★★★
"500 worm sets for our conveyor right-angle drive. Backlash was consistent across every single set; bronze wheels showed no measurable wear after our 1,000-hour accelerated test."
AV
Anders V.
Mechanical Design Lead · Sweden
★★★★★
"Self-locking worm sets for a stage lift — safety is everything. HXC supplied full self-lock verification under rated load plus material certs for our CE marking file."
RN
Roberto N.
Stage Systems Engineer · Italy
★★★★★
"Micro stainless worm sets for a surgical device — M1, PEEK wheels, 50:1 ratio. CMM report detailed; FDA material docs exactly what our regulatory team needed."
YC
Yuki C.
R&D Engineer · Japan
Întrebări frecvente
Worm Gears — FAQ
Common questions from engineers and buyers — answered by our manufacturing team.
A self-locking worm gear cannot be driven in reverse by torque applied to the worm wheel. The worm can rotate the wheel, but the wheel cannot rotate the worm — the gear set acts as a brake when unpowered. Self-locking requires a low lead angle (typically single-start, ratio ≥ ~20:1) and is used in lifting equipment, door actuators, and stage machinery. Note: self-locking is not guaranteed under shock loading — a mechanical brake should still be added to safety-critical lifts.
A multi-start worm has 2, 3, or 4 separate helical threads. Each additional start multiplies linear advance per revolution, increasing the lead angle. Gear ratio = Wheel teeth ÷ Starts. So a 40-tooth wheel + 2-start worm → 20:1; + 4-start → 10:1. Multi-start worms are back-drivable, more efficient (70–85%), and used in robot joints, servo gearheads, and valve actuators.
Efficiency depends on lead angle: single-start self-locking (γ ~3–5°): 40–55%; double-start (γ ~6–10°): 55–70%; four-start (γ ~12–18°): 70–85%; high-lead (γ > 20°): 85–92%. Spur/helical gears achieve 97–99% per mesh. Efficiency is improved by ground worm flanks (Ra ≤ 0.4 µm), softer bronze wheels, correct EP oil viscosity.
Phosphor bronze (PB2 / CuSn10P) is the industry standard — excellent anti-friction and anti-seizure against hardened steel. Aluminium bronze (AB2) is stronger, used for heavy-load or shock applications. Fontă suits large slow drives. POM / Nailon for light-duty quiet drives. PEEK for medical and high-temperature environments. The worm is always harder than the wheel.
DIN 3975 defines four worm thread forms: ZA Archimedes — straight axial flanks; simple to turn. ZN convolut — straight normal flanks; good for multi-start. ZI involute — involute transverse profile; most accurate and grinds well — HXC's preferred form for precision worms. ZK Klingelnberg — conical wheel ground; precision instruments.
Worm gears require an extreme-pressure (EP) gear oil, typically ISO VG 220 or VG 320. Sliding contact generates high interface temperatures and pressure; standard oils without EP additives cause bronze wheel pitting. For food-grade: NSF H1 food-safe synthetic oils. For PEEK or POM wheels — consult HXC: some EP additives attack certain plastics.
Provide: module · starts · wheel tooth count · centre distance · worm pitch circle diameter · pressure angle · thread form · materials · DIN quality class · finish · quantity. A STEP file or detailed engineering drawing is ideal — but a ratio and input torque is enough to start a conversation. Our engineers can compute the full geometry from a duty-cycle specification.
Prototype (any module, any material): 5–10 days. Small batch (10–50 sets): 10–16 days. Ground precision (DIN Q6–7, post-hardened): add 5–8 days. Multi-start grinding: add 2–3 days vs single-start.
Solicită o ofertă
Trimite-ți desenul.
Obține o ofertă.
Fiecare solicitare include o revizuire DFM — fezabilitatea toleranței, confirmarea materialului și abordarea procesului înainte de începerea producției. MOQ 1 piesă.
24hr
Răspuns la ofertă
MOQ 1
Prototipuri OK
ISO
9001:2015
📐
Revizuire DFM pentru fiecare solicitare
Fezabilitatea toleranței, strategia de fixare și confirmarea materialului. Feedback specific și acționabil — nu respingeri generice.
🎯
Inspecția primului articol — Standard
Raport FAI pentru fiecare lot nou. Certificări de material și tratament de suprafață incluse cu fiecare livrare.
🔄
Același proces: prototipare până în producție
Planul de proces din prototipul dumneavoastră se aplică loturilor de producție. Fără re-qualificare atunci când scalați.
⚙
Frezare CNC 3 / 4 / 5-Axis + Strunjire
Piese structurale complexe, arbori, carcase și componente de transmisie. Metale și plastice de inginerie.
ISO 9001:2015
Frezare 3/4/5-Axis
Frezare în strung CNC
Inspecție CMM
Livrare globală