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SKF 6209 Open Deep Groove Ball Bearing
The SKF 6209 is an open single row deep groove ball bearing designed for smooth rotation and effective shaft support. Its deep raceway construction accommodates radial loads and axial loads in both directions while maintaining low friction. It is suitable for assemblies requiring the standard 6209 dimensions and normal radial internal clearance.
Design and Construction
The SKF 6209 features a single row of steel balls running between deep raceway grooves. A steel cage separates and guides the rolling elements during rotation.
Its bearing steel construction provides strength and effective load support. With dimensions of 45x85x19mm, the bearing offers a smaller outside diameter and narrower profile than the 6309 series while retaining the same 45mm 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. Suitable external sealing may be required to protect the bearing against contamination and lubricant loss.
Applications
The SKF 6209 can be considered for rotating equipment where its dimensions and operating characteristics meet the machinery requirements.
Electric motors
Industrial pumps
Fans and ventilation equipment
Conveyor drive assemblies
Gearboxes and mechanical transmissions
General industrial machinery
Benefits
The SKF 6209 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.
Compact Bearing Profile: Offers a smaller outside diameter than the 6309 series for assemblies designed around the 6209 dimensions.
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 equipment where normal clearance is specified.
Bearing Selection
Before purchasing, confirm that the 45x85x19mm dimensions and normal radial internal clearance match your equipment requirements.
Operating loads and speeds should be checked 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 6209/C3 or sealed or shielded variant may be more suitable.
