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SKF 6008/C3 Open Deep Groove Ball Bearing
The SKF 6008/C3 is an open single row deep groove ball bearing designed for smooth rotation and efficient shaft support. It accommodates radial loads and axial loads in both directions while maintaining low friction. Its increased internal clearance makes it suitable for rotating assemblies where C3 clearance is specified.
Design and Construction
The SKF 6008/C3 features a single row of steel balls running between deep raceway grooves. A sheet metal cage separates and guides the rolling elements during rotation.
Its bearing steel construction provides effective load support under suitable operating conditions. With dimensions of 40x68x15mm, the bearing offers a smaller outside diameter and narrower profile than the 6208 series while retaining the same 40mm bore.
C3 Internal Clearance and Open Design
The bearing features C3 radial internal clearance, which is greater than normal clearance. This helps compensate for reductions in operating clearance caused by interference fits and temperature differences between the bearing rings.
Its open design without seals or shields allows grease or oil to reach the rolling elements directly. Suitable external sealing may be necessary to protect against contamination and lubricant loss.
Applications
The SKF 6008/C3 can be considered for rotating machinery where its dimensions and increased internal clearance meet the operating requirements.
Electric motors
Industrial pumps
Fans and ventilation equipment
Mechanical drive assemblies
Industrial transmission equipment
General rotating machinery
Benefits
The SKF 6008/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.
Slim Construction: Provides shaft support where a 40mm bore and relatively small outside diameter are required.
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.
Bearing Selection
Before purchasing, confirm that the 40x68x15mm 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 is required, the SKF 6008 may be more suitable. For applications requiring integrated sealing, check the corresponding sealed or shielded SKF 6008 variants.
