Barrel Roller Bearings FAG 20217 -K-MB-C3

The FAG 20217 -K-MB-C3 single-row spherical roller bearing, with an inner diameter of 85 mm and an outer diameter of 150 mm, provides angular misalignment compensation for high radial loads.

The 20217 -K-MB-C3 spherical roller bearing is a single-row rolling bearing with spherical rollers that absorbs radial forces and compensates for shaft misalignment. With key dimensions of 85 mm bore diameter, 150 mm outer diameter and a width of 28 mm, this FAG rolling bearing is suitable for demanding industrial applications. The open design allows for flexible lubrication, whilst the solid brass cage guides the rolling elements even under dynamic loads. The component complies with tolerance class P0 or ABEC 1.

What is the 20217 -K-MB-C3 spherical roller bearing suitable for?

This spherical roller bearing is used wherever high radial shock or continuous loads occur and where manufacturing-related misalignments or deflections need to be compensated for. Typical applications include bearing arrangements subject to high radial forces and potential misalignment. Thanks to its permissible temperature range of –30 to +150 degrees, the bearing operates reliably even under thermal stress. The open design allows the user to freely select the appropriate lubricant for the specific environment and to relubricate the bearing directly via the machine housing.

What properties do the brass cage, tapered bore and C3 clearance offer?

The suffix ‘K’ denotes a tapered bore with a 1:12 taper, which allows mounting on a tapered shaft seat or, using a shrink sleeve, on cylindrical shafts. When the bearing is pressed onto the shaft, the radial bearing clearance is reduced. For this reason, this design features the increased C3 bearing clearance, ensuring that sufficient radial clearance remains after pressing and during operation at elevated temperatures. The robust brass cage (MB) guides the barrel rollers under demanding operating conditions.