Angular Contact Ball Bearings are used primarily for supporting a rotating shaft and carrying its radial and axial loads with low friction. This page lists the industries and assemblies where they are specified, the selection criteria that matter for each application, installation practice, and the cases where a different fastener type is the correct choice. Parts are supplied to ISO / DIN. Stocked across roughly 10 mm to 80 mm, they cover general to heavy-duty work.
Typical Applications for Angular Contact Ball Bearing — ISO / DIN (Series 137)
The most common settings where these are specified:
- General machine building: fastening covers, brackets, motors and sub-assemblies on production equipment.
- Maintenance & repair (MRO): a stocked size for servicing existing plant where the original fastener spec must be matched.
- Fabrication & metalwork: bench and on-site assembly of steel frames, enclosures and weldments.
How to Specify Angular Contact Ball Bearing — ISO / DIN (Series 137) for Your Application
- Size: Select on bore diameter, and confirm it against the mating feature in the assembly. This product spans 10 mm–80 mm; check the full table below for the exact dimensions of each size.
- Material: Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to ISO / DIN. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Where Angular Contact Ball Bearing — ISO / DIN (Series 137) Are Not the Right Choice
Match the fastener to the load, environment and whether the joint must be reopened; the wrong class or style is the usual cause of joint failure.


