Shopping Cart
There are no more items in your cart
The SKF 6306-2RS1/C3 sealed deep groove ball bearing is engineered for rotating equipment requiring a 30mm bore, substantial radial load support and increased initial internal clearance. Its 72mm outside diameter and 19mm width provide a more substantial bearing cross-section than the corresponding 6206 series. SKF Explorer specifications give a 29.6kN basic dynamic load rating and a 16kN basic static load rating, making these figures useful for assessing bearing life and stationary loading. The single row deep groove design supports predominantly radial loads alongside axial forces acting in either direction, within the manufacturer's limits. The defining feature is the C3 clearance, which exceeds normal (CN) clearance and can help compensate for reductions caused by tight shaft fits or temperature differences between the bearing rings.
The 2RS1 rubber contact seals provide contact sealing on both sides, retaining factory-applied grease while restricting dirt, dust and moisture. This reduces routine lubrication requirements in suitable enclosed installations. SKF specifies a 6,300rpm limiting speed for the contact-sealed configuration; actual running conditions must also consider heat generation, load, grease performance and seal friction. The bearing incorporates a sheet metal cage and has an approximate mass of 0.352kg. Although the 6306-2RS1 and 6306-2RS1/C3 share the same dimensions and principal load ratings, their internal clearances are different. C3 is not automatically preferable for every application: the correct clearance depends on operating temperature, mounting fits and the required running conditions. Confirm the full designation before replacement and avoid transmitting mounting force through the rolling elements.
Typical Applications:
Industrial electric motors with specified C3 bearing clearance
Centrifugal pumps and process equipment
Industrial gearboxes and mechanical power transmission systems
Conveyor drive shafts and rotating equipment assemblies
Agricultural machinery operating under variable loading conditions
