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SKF 6304/C3 Open Deep Groove Ball Bearing
The SKF 6304/C3 is an open single row deep groove ball bearing designed for smooth rotation and effective shaft support. It accommodates radial loads and axial loads in both directions while maintaining low friction. Its increased internal clearance makes it a practical choice for rotating equipment where C3 clearance is specified.
Design and Construction
The SKF 6304/C3 features a single row of steel balls running between deep raceway grooves. A stamped steel cage separates and guides the rolling elements during operation.
Its bearing steel construction provides strength and effective load support. With dimensions of 20x52x15mm, it offers a robust arrangement for machinery requiring the standard 6304 bearing size.
C3 Internal Clearance and Open Design
The bearing features C3 radial internal clearance, which is greater than normal clearance. This helps accommodate reductions in operating clearance caused by interference fits and temperature differences between the bearing rings.
Its open design without seals or shields allows direct grease or oil lubrication. Suitable external sealing may be necessary to protect the bearing against contamination and lubricant loss.
Applications
The SKF 6304/C3 can be considered for rotating equipment where its dimensions and increased internal clearance meet the operating requirements.
Electric motors
Industrial pumps
Fans and ventilation equipment
Conveyor drive assemblies
Gearboxes and mechanical transmissions
General industrial machinery
Benefits
The SKF 6304/C3 offers several practical advantages.
C3 Internal Clearance: Helps accommodate reductions in operating clearance caused by shaft fits and temperature differences.
Low Friction: Supports smooth rotation while helping reduce mechanical energy losses.
Combined Load Support: Accommodates radial loads and axial loads in both directions.
High Speed Capability: Its deep groove design supports relatively high rotational speeds with suitable lubrication.
Flexible Lubrication: Open construction allows direct grease or oil lubrication.
Robust Construction: Bearing steel components provide effective shaft support under suitable operating conditions.
Bearing Selection
Before purchasing, confirm that the 20x52x15mm dimensions and C3 radial internal clearance match your equipment requirements.
Check operating loads and speeds alongside shaft and housing fits. Lubrication and contamination exposure should also be considered. If normal internal clearance or integrated sealing is required, a different SKF 6304 variant may be more suitable.
