Cylindrical Roller Bearing (ISO / DIN) are specified where the joint requires a range of mechanical fastening duties. The sections below cover the typical end-uses by industry, the size and material decisions for each, assembly practice, and the applications this fastener type is not suited to. Stocked across roughly M20 to M90, they cover heavy and structural work.
Typical Applications for Cylindrical Roller Bearing — ISO / DIN (Series 139)
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 Cylindrical Roller Bearing — ISO / DIN (Series 139) for Your Application
- Size: Match the nominal size to the mating thread or hole. This product spans M20–M90; 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 Cylindrical Roller Bearing — ISO / DIN (Series 139) 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.