Deep Groove Ball Bearings SKF 6308 -2RS1/C3

The SKF single-row deep groove ball bearing 6308 -2RS1/C3, measuring 40x90x23 mm, features ground seals on both sides and a slightly increased C3 radial clearance.

The SKF 6308 -2RS1/C3 deep groove ball bearing primarily accommodates radial loads as well as axial forces in both directions. Manufactured from standard 100Cr6 rolling bearing steel, this single-row bearing is characterised by its dimensional stability. With a bore of 40 mm, an outside diameter of 90 mm and a width of 23 mm, the component fits precisely onto cylindrical shafts. The robust sheet steel cage reliably guides the rolling elements at operating temperatures ranging from –20 to +120 degrees Celsius.

What are the industrial applications for the 6308-2RS1/C3 deep-groove ball bearing?

This rolling bearing is ideal for use in bearing assemblies and drives where dirt particles must be kept out. The abutment seals on both sides help to repel dust and splash water and retain the lubricant within the bearing. Thanks to the slightly increased C3 bearing clearance, the deep groove ball bearing is particularly suitable for applications involving operational heating or tight fits on the shaft, as the remaining radial clearance reduces the risk of the rolling elements seizing.

What are the advantages of the 2RS1 and C3 designs?

The 2RS1 design comprises two sealing discs that are in contact with the inner ring on both sides. This design protects the raceways from environmental influences and often eliminates the need for additional sealing elements in the housing. The designation C3 indicates a slightly increased radial bearing clearance compared with the standard version. If the inner ring expands more than the outer ring due to heat build-up during operation, the C3 bearing clearance compensates for this thermal expansion and contributes to smooth running.