SKF 6309-2RS1/C3 Rubber Sealed Single Row Deep Groove Ball Bearing 45x100x25mm

The SKF 6309-2RS1/C3 sealed deep groove ball bearing is engineered for industrial shaft assemblies where a substantial radial load capacity and increased internal clearance are required. With dimensions of 45 x 100 x 25mm, the bearing has a robust single row deep groove construction that accommodates radial loads and axial forces in either direction, within its rated limits. SKF specifies a 55.3kN basic dynamic load rating and a 31.5kN basic static load rating, providing useful reference values for bearing-life calculations and equipment selection. Its SKF Explorer performance classification and pressed sheet metal cage make it a practical choice for demanding mechanical drive applications.

The 2RS1 contact seals retain factory-applied grease and help prevent dust, dirt and moisture entering the bearing, reducing the need for routine relubrication. SKF lists a 4,500rpm limiting speed for this sealed configuration. The important distinguishing feature is the C3 radial internal clearance, which is greater than normal clearance before mounting. This can be beneficial when interference fits or elevated operating temperatures reduce the available running clearance, but C3 should not be selected automatically for every installation. Unlike the standard 6309-2RS1 bearing with normal clearance, this version must be matched to the machinery manufacturer's specified clearance requirements. Correct mounting practices, lubrication conditions and temperature management remain essential for dependable operation.

Typical Applications:

Industrial electric motors with specified C3 clearance

Heavy-duty centrifugal pumps and drive assemblies

Agricultural machinery and rotating shaft systems

Industrial conveyor drives and pulley supports

Mechanical transmission and gearbox shaft arrangements