CNC Machined Transmission Gears

BestPro is a manufacturer of high quality CNC machined transmission gears. Every gear is precision ground, heat treated and subject to high quality control standards. Precise manufacturing prevents tooth-end load on the dowel pin for longer life. Quiet-running, both directions. Certifications: ISO 9001 supporting first article production and in process personnel to maintain lowest cost solutions.

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Product Description

BestPro high quality CNC machined transmission gears are designed for the performance enthusiast that wants a highly durable, quality manufactured gears to increase their load capacity. We work on small e-bike gears and heavy duty vehicle gears, we cut, grind and finish with a high degree of accuracy to guarantee seamless power transmission even at torque. Prototypes, pilot models or series production are implemented reliably and in equal quality.

Materials & Heat Treatment

We offer a variety of materials for high performance, transmission-type gears. Both are heat-treatable and chemically similar, allowing them to be finished (machined or polished) to your own specifications.

Material	Heat Treatment / Surface	Hardness (HRC)	Notes / Applications
20CrMnTiH	Carburizing + Quench & Temper	58–62	Automotive gearbox, high torque, wear-resistant
20CrNiMo	Carburizing + Grinding	58–62	Heavy-duty vehicle gears, fatigue-resistant
40CrNiMoA	Carburizing + Grinding	55–60	Standard automotive and industrial gears
Stainless Steel (304/316)	Hardening + Polishing	48–52	Corrosion-resistant, low-load applications
Aluminum (6061/7075)	Anodizing + Polishing	N/A	Lightweight gears, e-bikes, low torque
Special Alloys	Customized Heat Treatment	As required	High temperature / high strength

Notes: All CNC machined transmission gears are ISO 9001 certified. MTC and Hardness reports can be provided. The minimum order quantity is 1 piece for prototypes.

Machining & Dimensions

Parameter	Range / Capability	Notes
Module (m)	0.5 – 10 mm	Suitable for automotive to industrial
Gear Diameter	20 – 500 mm	From small e-bike to heavy vehicle
Face Width	5 – 100 mm	Depending on torque requirements
Tolerance / Accuracy	GB/T 10095.1 Grade 7 (or better)	Ensures smooth transmission
Production Volume	1 piece – mass production	Supports prototypes and series production

CNC Machined Transmission Gears

Process & Precision

We depended on multi-axis turning, hobbing and gear grinding, all to tight tolerances. Gauges and CMM checks each gear for tooth profile, run-out, concentricity and torque transmission. It is with low noise, vibration, and long service life.

German Client Case Study

Material: 20CrMnTiH carburized steel
Gear Type: Automotive gearbox gear
Carburizing Depth 1.0–1.4 mm, Hardness HRC58–62
Grinding Accuracy: GB/T 10095.1-Grade 7
Application: Passenger car Transmission

Quality Control

Each gear is checked for tolerance, surface finish and hardness. CMM and test jigs checks rotation firmness, concentricity and balance. Statistical Process Control (SPC) is used to maintain the quality across prototype to volume production.

Why choose BestPro?

CNC machining and grinding accuracy to 0.01 mm
Material and hardness certification are also available on request.
Supply experience with German automotive clients over the long run
Good for cutting gears anywhere from small (e-bike size) up to large (heavy duty vehicle size).
Prototyping, pilot run & mass production supported by a sound quality concept
Drawing review through to final issue

BestPro CNC machined transmission gears are manufactured for high performance automotive and industrial applications which demand strength, durability and precision to ensure smooth, reliable power transfer under severe conditions. Reach out to us for a design-assessment.