Transmission Specialists
CNC Gear &
Transmission
Parts Machining
Custom machining for spur, helical, bevel, and worm gear components, gear shafts, sprockets, and transmission parts built to drawing requirements and DIN / AGMA-related standards.
Spur / Helical / Bevel / Worm
Gear Shafts & Sprockets
DIN / AGMA-Based Production
Precision Bores, Fits & Mounting Faces
Prototype to Production
Parts We Machine
Gear and Transmission Parts We Machine
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Gear-Related Parts
Spur Gears
Helical Gears
Bevel Gear Components
Worm Gear Components
Sprockets
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Transmission-Related Parts
Gear Shafts
Splined Shafts
Hubs & Coupling Parts
Transmission Housings
Bearing Carriers & Mounting Flanges
Machined Parts Gallery
Gear and transmission parts we have produced for our customers.
Spur Gear Set · Alloy Steel 4140
Gear Shaft · 4340 Alloy Steel
Sprocket · Carbon Steel 1045
Helical Gear · 17-4PH Stainless
Transmission Housing · Al 6061
Bevel Gear Components · 8620 Alloy
Core Value
Why Gear & Transmission Components Need Dedicated Machining Control
Transmission parts work as a system — bore, shaft, housing, and gear interface all affect final assembly performance.
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Challenges When Parts Are Treated as Isolated Components
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Bore and shaft fit not matched across partsGear bore, shaft journal, and housing bore machined without considering how they interact — leading to assembly clearance or interference problems.
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Mounting faces and alignment surfaces treated as secondaryFlange flatness and positional accuracy not controlled — causing misalignment between housing, bearing, and gear train.
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Keyways and splines sourced from different suppliersGear blank, keyway, and shaft spline machined in separate shops with no coordination on fit or datum.
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No understanding of assembly relationshipsEach part checked individually, but no one has verified that the set will work together.
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How Our Approach Resolves This
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Assembly-driven machining logicWe understand that bore, shaft, gear interface, and housing work together — and plan machining accordingly.
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All features machined in one facilityGear blanks, bores, keyways, splines, mounting faces, and housing bores produced under one roof — no supplier mismatch.
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DIN / AGMA-related production requirements followedParts produced to drawing requirements and relevant application standards — not just generic CNC tolerances.
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Fit-critical features verified before shipmentBores, shaft fits, keyways, mounting faces, and positional relationships inspected and confirmed against drawing.
Gear Types
Gear Types We Support
S
Spur Gear Components
For straightforward parallel-shaft power transmission applications.
H
Helical Gear Components
For smoother, quieter transmission systems with angled tooth engagement.
B
Bevel Gear Components
For angular power transfer between intersecting shafts.
W
Worm Gear Components
For high-ratio transmission and compact drive systems.
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Sprockets
For chain-driven motion and conveyor systems.
Machining Features
Critical Features for Gear & Transmission Parts
Every feature machined in-house — parts ship ready to assemble.
Precision Bores
Shaft Fits
Keyways
Splines
Mounting Faces
Bearing Seats
Shoulder Dimensions
Flange Interfaces
Threaded Mounting Features
Sealing Surfaces
Hub Profiles
Locating Features
Standards & Accuracy
Machining to Drawing, Fit & Standard Requirements
Production Standards
DIN / AGMA
Per drawing specification
Bore Fits
H7 / H6
ISO fit classes
Shaft Fits
h6 / k6
Journal accuracy
Surface Finish
Ra 0.8 μm
On functional surfaces
What We Control
1
DIN / AGMA-Related Production
Parts produced to drawing requirements and relevant application standards — confirmed during engineering review before production.
2
Fit-Critical Bores & Shafts
Gear bores, shaft journals, and housing bores machined to specified ISO fit classes — verified individually before assembly.
3
Mounting & Alignment Surfaces
Flange faces, mounting surfaces, and locating features held for flatness and positional accuracy to ensure correct gear train alignment.
4
Concentricity & Positional Control
Bore-to-face perpendicularity, shaft concentricity, and feature position controlled to prevent misalignment in the assembled transmission.
5
Assembly-Driven Machining Logic
Machining sequence planned with the final assembly in mind — not just individual part tolerances in isolation.
Material Selection
Materials for Gear & Transmission Machining
1045
Carbon Steel 1045
Medium-carbon · General gear blanks
1018
Carbon Steel 1018
Low-carbon · Hubs & coupling parts
1215
Free-Cutting 1215
High-volume · Fast machining parts
1144
Stress-Proof 1144
Pre-stressed · Shafts & gears
4140
Alloy Steel 4140
Heat-treatable · Gear shafts & gears
4340
Alloy Steel 4340
Ultra-high strength · Critical gears
8620
Alloy Steel 8620
Case-hardening · Wear-resistant gears
52100
Bearing Steel 52100
Bearing-grade · High-hardness parts
303
Stainless 303
Free-machining · Fast turnaround
304
Stainless 304
Corrosion resistant · General use
316
Stainless 316
Marine · Chemical environments
17-4
17-4PH Stainless
High-strength · Aerospace gears
Complete Assemblies
More Than Gears: Complete Transmission Components
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Gear Shafts
Integrated gear-and-shaft parts where the gear form and shaft journals are machined as a single component — with keyways, splines, and fit surfaces completed in-house.
Shaft Machining
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Transmission Housings
Housing bores, sealing surfaces, and mounting faces machined to positional and fit tolerances for correct assembly with gears, bearings, and shafts.
Housing Machining
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Bearing Support Parts
Bearing carriers, bearing housings, and support structures with precision bores and mounting faces for reliable gear train support.
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Drive Hubs
Precision-bored hubs with keyways, splines, and set-screw features for coupling gears, pulleys, and sprockets to shafts.
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Sprockets
Chain-drive sprockets with precision bores, keyways, and hub profiles machined to drawing — for conveyor, packaging, and automation systems.
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Coupling Interface Parts
Coupling halves, adapter flanges, and shaft-to-shaft interface components with fit-critical bores and bolt patterns.
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Applications
Typical Applications for Gear & Transmission Parts
Industrial Gearboxes
Reduction & speed drives
Power Transmission
Shaft-to-shaft transfer
Conveyors
Drive sprockets & shafts
Automation Equipment
Servo drives & actuators
Motor Drive Systems
Electric & hydraulic
Agricultural Machinery
PTO & gearbox parts
Packaging Machinery
Cam & gear drives
Robotics Drives
Joint & actuator modules
4+
Gear Types
DIN/AGMA
Standards
Full
Feature Machining
24hr
Quote Turnaround
Service Comparison
Gear & Transmission Parts vs CNC Shaft Machining
Two specialized services in the same facility — one for gear and transmission assemblies, one for standalone shafts.
| Gear & Transmission Parts | CNC Shaft Machining | |
|---|---|---|
| Focus | Gear-related and transmission assembly parts | Shafts as standalone functional parts |
| Part Types | Gears, gear shafts, sprockets, housings, mating parts | Stepped, splined, threaded, keyed, hollow shafts |
| Key Emphasis | Assembly relationships & standard-driven production | Fits, journals, keyways, splines, runout |
| Standards | DIN / AGMA-related requirements | ISO fit classes (h6, h7, k6) |
| Typical Application | Gearboxes, conveyors, power transmission, packaging | Motors, pumps, automation, rotating assemblies |
| Overlap | Gear shafts and splined shafts are supported by both services — choose based on project context | |
Quality Assurance
Quality Control for Functional Transmission Components
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Bore & Fit Inspection
Gear bores, shaft journals, and housing bores measured to ISO fit class — H7, H6, h6, k6 verified per drawing specification.
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Shaft-to-Bore Relationship
Gear bore to shaft fit, bore concentricity, and bore-to-face perpendicularity checked to confirm correct assembly interface.
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Keyway & Spline Verification
Keyway width, depth, and angular position verified. Spline tooth profile and pitch confirmed against drawing or standard specification.
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Mounting Face Checks
Flange flatness, bolt pattern position, and mounting face perpendicularity verified to ensure correct gear train alignment.
RPT
Inspection Reports
Dimensional inspection reports available on all gear and transmission orders. Full CMM reports available on request for critical projects.
MC
Material Certification
Material grade confirmed against order. Mill certificates with heat number and chemical composition available for traceability.
Transition Path
From Prototype Gear Components to Production Supply
Start with a prototype to verify assembly fit, then move into production — same facility, same quality system, no re-qualification.
1
Prototype Validation
Machine 1–50 gear and transmission parts to verify assembly fit, bore-to-shaft relationship, and functional performance.
2
Design Refinement
Iterate on bore fits, keyway specs, mounting dimensions, and material selection based on prototype test results.
3
Pilot Production Run
Produce a small production-representative batch to confirm repeatability and consistency across the set of parts.
4
Ongoing Production Supply
Scale into low-volume or full production supply — with full QC documentation and material traceability.
Workflow
How Our Gear & Transmission Service Works
1
Upload Drawing
Send STEP, IGES, DWG, or PDF with full dimensional and standard callouts.
2
Fit & Interface Review
Our engineers review bores, fits, keyways, mounting faces, and assembly relationships before quoting.
3
Quote & Process Plan
Detailed quote within 24 hours with machining strategy and standard compliance confirmation.
4
CNC Production
Gear blanks, bores, features, and mating parts machined in one facility with in-process checks.
5
Inspection
Bores, fits, keyways, mounting faces, and positional relationships verified against drawing.
6
Delivery
Parts packed with protection. Material certs and inspection records included as required.
FAQ
Frequently Asked Questions
Everything about gear and transmission parts machining — types, standards, materials, and the difference from shaft machining.
We machine spur gears, helical gears, bevel gear components, worm gear components, sprockets, gear shafts, splined shafts, hubs, coupling-related parts, transmission housings, bearing carriers, and mounting flanges. Parts are produced from drawing specifications to DIN / AGMA-related requirements as applicable.
Yes. We produce spur gear components for parallel-shaft power transmission, helical gear components for smoother and quieter drive systems, bevel gear components for angular power transfer, and worm gear components for high-ratio compact drives. All gear types are machined to drawing requirements with fit-critical bores, keyways, and mounting features completed in-house.
Yes. Gear shafts — where the gear and shaft are an integrated component — are a core capability. We also machine sprockets for chain-driven motion systems. Both part types are produced with precision bores, keyways, splines, and fit-critical surfaces as specified on the drawing.
Yes. We machine transmission housings, bearing carriers, mounting flanges, and other mating parts that form the complete transmission assembly. Housing bores, sealing surfaces, and mounting faces are machined to the positional and fit tolerances required for correct assembly with gears, bearings, and shafts.
Yes. We produce gear and transmission parts to DIN and AGMA-related production requirements as specified on the drawing. This includes dimensional tolerances, fit classes, surface finish requirements, and positional relationships between features. All requirements are confirmed during the engineering review before production.
We machine gear and transmission parts in carbon steel (1045), alloy steel (4140, 4340, 8620), stainless steel (303, 304, 316, 17-4PH), and bearing steel (52100). Material selection is driven by application requirements including load, speed, hardness, and environment — we advise on the optimal grade during the engineering review.
CNC shaft machining focuses on shafts as standalone functional parts — emphasizing journals, fits, keyways, splines, and threaded ends for motor, pump, and rotating applications. Gear and transmission parts machining focuses on gear-related and transmission assembly parts — including gears, gear shafts, sprockets, housings, and mating parts — with emphasis on assembly relationships and standard-driven production. Both services are available in the same facility.
Yes. We support gear and transmission parts from single-piece prototypes through to full production quantities. Prototypes can be delivered in as fast as 3–5 business days with DFM review included. Production orders follow the same quality system with full inspection and material traceability. There is no minimum order quantity.
Get a Quote
Send Your Drawing.
Get a Quote.
Every enquiry includes a DFM review — tolerance feasibility, material confirmation, and process approach confirmed before production starts. MOQ 1 piece.
24hr
Quote Response
MOQ 1
Prototypes OK
ISO
9001:2015
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DFM Review on Every Enquiry
Tolerance feasibility, fixturing strategy, and material confirmation. Specific, actionable feedback — not generic pushback.
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First Article Inspection — Standard
FAI report on every new run. Material certs and surface treatment certs included with every shipment.
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Same Process: Prototype to Production
Process plan from your prototype applies to production batches. No re-qualification when you scale.
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3 / 4 / 5-Axis CNC + Turning
Complex structural parts, shafts, housings, and transmission components. Metals and engineering plastics.
ISO 9001:2015
3/4/5-Axis Milling
CNC Turning
CMM Inspection
Global Delivery