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SKF 6004 Open Deep Groove Ball Bearing
The SKF 6004 is an open single row deep groove ball bearing designed for efficient shaft support and smooth rotation. Its deep raceway design accommodates radial loads and axial loads in both directions. The bearing's compact profile makes it particularly useful for machinery requiring a 20mm bore and a relatively small outside diameter.
Design and Construction
The SKF 6004 features a single row of steel balls running between precisely manufactured deep raceway grooves. A sheet metal cage maintains the separation of the rolling elements during rotation.
Its bearing steel construction provides strength and effective load support. With dimensions of 20x42x12mm, it offers a slimmer arrangement than the 6204 and 6304 bearing 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 provides flexibility for machinery with an appropriate lubrication system.
It has normal radial internal clearance for applications where standard clearance is specified. Suitable external sealing may be necessary to protect against contamination and lubricant loss.
Applications
The SKF 6004 can be considered for rotating equipment where its dimensions and operating characteristics meet the machinery requirements.
Electric motors
Industrial fans and ventilation equipment
Compact pumps
Mechanical drive assemblies
Industrial transmission equipment
General rotating machinery
Benefits
The SKF 6004 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.
Slim Construction: Provides effective shaft support where a 20mm 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.
Normal Internal Clearance: Provides the standard clearance arrangement for applications where normal clearance is specified.
Bearing Selection
Before purchasing, confirm that the 20x42x12mm 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 6004/C3 or sealed or shielded variant may be more suitable.
