Deep Groove Ball Bearings SKF 6312 -RS1/C3

The SKF 6312 -RS1/C3 single-row deep groove ball bearing, measuring 60x130x31 mm, features a single-side seal and increased C3 clearance for industrial applications subject to thermal stress.

The 6312 -RS1/C3 deep groove ball bearing is a single-row radial ball bearing from SKF made from standard rolling-element bearing steel (100Cr6). With key dimensions of a 60 mm bore, 130 mm outside diameter and 31 mm width, it primarily supports radial loads and accommodates axial forces in both directions. The integrated sheet steel cage guides the rolling elements evenly into the deep raceways without a flange or groove on the outer ring. The design complies with standard tolerance P0 or ABEC 1 and is suitable for a wide range of industrial rotational movements.

What is the 6312 -RS1/C3 deep groove ball bearing suitable for?

This bearing is primarily used in power units and drives where the bearing location requires greater internal mobility due to operational heating or tight fits. Typical applications can be found in general mechanical engineering on rotating shafts. Thanks to the combination of an open and a sealed flange, this design is particularly suitable for installation spaces where one side abuts a lubricated internal housing cavity, whilst the sealed RS1 side protects against external contamination.

When is the combination of an RS1 seal and C3 radial clearance advantageous?

The C3 bearing clearance refers to an increased radial clearance between the inner ring, outer ring and rolling elements compared to the standard design. This reduces the risk of seizure should temperature differences occur between the shaft and the housing, or should oversize fits cause the inner ring to expand. The single-sided RS1 seal mechanically shields the rolling elements against dust and dirt. At the same time, the open opposite side allows lubricant to be replaced via the machine housing, if necessary, within the permissible temperature range of -20 to +120 degrees Celsius.