Bearings & Automotive
Rolling elements for bearing assemblies, motors and automotive components. Define precision, surface quality and batch requirements around the complete bearing design.

Applications & selection
Deep-groove bearings · Angular-contact bearings · Thrust bearings · Miniature & precision bearings · Motor & automotive assemblies
- Bearing manufacturing
- Electric motors
- Automotive & motorcycle
- Precision
- Define diameter variation, roundness and the governing grade.
- Running quality
- Agree noise, vibration and speed-related acceptance methods.
- Batch control
- Link material records, sampling and batch identification to the order.
Reference specifications
| Common diameter | 0.500–50.000 mm |
|---|---|
| Hardness | HRC 60–66 Chrome steel |
| Precision bearing grade | G10–G40 |
| Standard application grade | G40–G100 |
Reference ranges only; confirm material, condition and acceptance criteria in the quotation. Hardness varies by alloy; rounded metric equivalents are nominal labels. Source: SDBALLS ↗
Products for this application
Chrome steel · AISI 52100
Start with the drawing, rolling contact and wear requirements. G10 is our featured grade.
Stainless steel
Choose the alloy for the working environment, finish and hardness required.
Carbon steel for mechanical parts
For bicycle and automotive mechanical parts, select the steel and treatment against the assembly load and wear requirements.
Ceramic balls
Review the ceramic composition, mating surfaces and complete bearing conditions.
Discuss your application
Send material, diameter, grade and quantity with your drawing or operating conditions.