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SKF 6304 Open Deep Groove Ball Bearing
The SKF 6304 is an open single row deep groove ball bearing designed for efficient shaft support and smooth rotation. It accommodates radial loads and axial loads in both directions while maintaining low friction. Its robust construction makes it suitable for machinery where normal internal clearance and the standard 6304 bearing dimensions are required.
Design and Construction
The SKF 6304 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 strength and effective load support. With dimensions of 20x52x15mm, it offers a more substantial cross section than the 6204 series while retaining the same 20mm bore.
Open Design and Internal Clearance
The bearing features an open design without seals or shields. This allows grease or oil to reach the rolling elements directly and makes it suitable for machinery with an appropriate lubrication system.
It has normal radial internal clearance for applications where standard clearance is specified. External sealing may be necessary to protect the bearing against contamination and lubricant loss.
Applications
The SKF 6304 can be considered for rotating equipment where its dimensions and operating characteristics meet the machinery requirements.
Electric motors
Industrial pumps
Fans and ventilation equipment
Mechanical drive assemblies
Conveyor equipment
General industrial machinery
Benefits
The SKF 6304 offers several practical advantages.
Low Friction: Supports efficient rotation while helping reduce mechanical energy losses.
Combined Load Support: Accommodates radial loads and axial loads in both directions.
Robust Construction: Provides effective shaft support through its bearing steel components and deep raceway design.
High Speed Capability: Supports relatively high rotational speeds when correctly lubricated.
Flexible Lubrication: Open construction allows direct grease or oil lubrication.
Normal Internal Clearance: Provides the standard clearance arrangement for equipment where normal clearance is specified.
Bearing Selection
Before purchasing, confirm that the 20x52x15mm dimensions and normal 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 increased internal clearance or integrated sealing is required, an appropriate SKF 6304/C3 or sealed or shielded variant may be more suitable.
