SKF 62303-2RS1 Rubber Sealed Single Row Deep Groove Ball Bearing 17x47x19mm

The SKF 62303-2RS1 extra-wide sealed deep groove ball bearing provides rotational support for 17mm shafts in equipment designed around a 19mm bearing width. Its dimensions distinguish it from the conventional 6303, which has the same 47mm outside diameter but measures only 14mm wide. The additional axial width influences spacer positioning, housing shoulders and retaining arrangements, making it important to specify the correct designation. Its single row deep groove construction accommodates radial loads and limited axial forces in either direction. SKF catalogue figures give a basic dynamic load rating of 13.5kN and a basic static load rating of 6.55kN. The wider construction does not automatically provide greater load capacity than the standard 6303, so engineering selection should follow the actual published ratings.

The 2RS1 rubber contact seals help retain the factory-applied grease and restrict the entry of dust, moisture and debris, making this bearing useful in enclosed equipment with limited relubrication access. SKF publishes a limiting speed of 11,000rpm and an approximate mass of 0.16kg for this configuration. Continuous operating suitability also depends on applied load, temperature and friction generated by the contacting seals. Normal radial internal clearance requires suitable shaft and housing fits to preserve adequate operating clearance after installation. During replacement, confirm the full designation and 19mm width, and apply mounting forces to the appropriate ring rather than transmitting them through the balls.

Typical Applications:

Compact industrial conveyor roller assemblies

Packaging and material-handling machinery

Enclosed mechanical drive components

Automated transfer and positioning mechanisms

Specialised shaft supports with 19mm-wide bearing seats