Deep Groove Ball Bearings FAG 6321

The FAG 6321 single-row deep-groove ball bearing, with dimensions of 105 × 225 × 49 mm, provides a robust bearing solution for demanding industrial applications.

The 6321 deep-groove ball bearing is an open, single-row rolling bearing conforming to standard tolerance class P0/PN. The FAG bearing primarily accommodates radial forces as well as axial forces in both directions. Manufactured from standard roller bearing steel 100Cr6, this component is suitable for operating temperatures between –30 and +150 degrees Celsius. Thanks to its open design without integrated sealing washers, the roller bearing can be flexibly integrated into existing lubrication circuits. Maintenance engineers and designers appreciate the standardised dimensions, which ensure straightforward installation.

In which applications is the 6321 deep-groove ball bearing used?

Thanks to its robust construction and dimensions of 105 mm bore and 225 mm outside diameter, the bearing has proven its worth in industrial drives and rotating shaft bearings subjected to combined loads. As the bearing is open at both ends, lubricating oil or grease from the housing system reaches the rolling elements and raceways unimpeded. The sheet steel cage guides the rolling elements evenly. The component is suitable for applications involving high speeds with stable radial guidance and moderate axial loads.

What should you bear in mind regarding the open design and bearing clearance?

This model has standard radial clearance and requires a clean installation environment. As no seals are fitted as standard, external housing seals must prevent the ingress of dirt and moisture. The standard bearing clearance is suitable for normal operating temperatures and standard fits on the shaft and housing. The selected lubricant should be designed for a temperature range of -30 to +150 degrees to prevent wear on the roller bearing steel components.