Deep Groove Ball Bearings SKF 6210 NR/C3

The SKF 6210 NR/C3 deep groove ball bearing, featuring a snap ring and increased C3 clearance, offers a reliable solution for axial fixation on a 50 mm shaft diameter.

The SKF 6210 NR/C3 deep groove ball bearing is a single-row radial ball bearing made from standard roller bearing steel (100Cr6) with a 50 mm bore, 90 mm outer diameter and 20 mm width. Designed as an open bearing, it allows for direct lubrication within the machine housing. The distinctive feature of this design lies in the combination of a ring groove with a retaining ring in the outer ring and the slightly increased radial clearance C3. The design allows for space-saving axial locking directly in the bearing seat.

What loads can the 6210 NR/C3 deep groove ball bearing accommodate?

This single-row deep-groove ball bearing primarily withstands radial loads as well as moderate axial forces. Thanks to the ring groove with a matching retaining ring, you can secure the bearing axially directly in the housing seat, which eliminates the need for complex housing shoulders or additional retaining caps. Typical applications are found in compact assemblies in general mechanical engineering. The permissible temperature range extends from –20 to +150 degrees, ensuring that the bearing retains its dimensional stability even under thermal stress.

What is important to consider regarding the retaining ring and C3 bearing clearance?

The NR/C3 variant combines two specific design features. The abbreviation NR stands for a groove with a snap ring on the outer ring, which facilitates axial fixation in the bearing seat. The designation C3 indicates a slightly increased radial bearing clearance. This internal clearance compensates for operational thermal expansion or contraction caused by tight fits, ensuring that the bearing continues to run smoothly. As this is an open bearing without integrated sealing washers, a clean installation environment and an external lubricant supply must be provided.