The SKF 6313-2RS1/C3 is a heavy-duty, single row deep groove ball bearing designed for industrial machinery requiring substantial load support and increased radial internal clearance. Measuring 65 x 140 x 33mm, its robust 63 series construction accommodates demanding shaft loads in motors, pumps and power transmission equipment. Two rubber contact seals retain factory grease and help protect against dirt and moisture. The C3 clearance provides greater initial internal clearance than a standard CN bearing, making this version suitable for applications where shaft fits or operating temperatures require additional clearance.
The SKF 6313-2RS1/C3 sealed deep groove ball bearing provides robust rotational support for larger industrial shafts operating under significant mechanical loads. Its 65mm bore, 140mm outside diameter and 33mm width give the bearing a substantial cross-section, with single row deep groove raceways capable of accommodating radial loads and axial forces in both directions within their rated limits. SKF specifies a 97.5kN basic dynamic load rating and a 60kN basic static load rating, making these figures essential when assessing fatigue life, maximum loading and equipment reliability. The 63 series construction offers a higher-capacity alternative to narrower bearing series where the shaft diameter is the same and sufficient housing space is available.
The 2RS1 rubber contact seals protect both sides of the bearing, retaining factory-applied grease while restricting contamination from dust, dirt and moisture. SKF specifies a limiting speed of 3,200rpm for this contact-sealed configuration; actual operating suitability also depends on load, temperature and heat generated by seal friction. The C3 radial internal clearance is greater than normal and can accommodate the reduction in running clearance caused by interference fits and differential thermal expansion. However, C3 is not automatically preferable for every machine: the correct clearance must be selected for its operating conditions. A sheet metal cage supports ball spacing, while careful mounting and alignment help preserve bearing performance. When replacing an existing bearing, verify the full 6313-2RS1/C3 designation rather than relying on dimensions alone.
Typical Applications:
Heavy-duty industrial electric motor assemblies
Centrifugal pumps and water circulation equipment
Industrial gearboxes and power transmission systems
Conveyor drives and large rotating shaft supports
Agricultural and material-handling machinery
