Overview
The SKF 6309-2Z/C3 is a single-row deep groove ball bearing engineered for radial and light axial load applications across industrial machinery, electric motors, pumps, and automation equipment. The bearing features dimensions of 45mm bore, 100mm outer diameter, and 25mm width. The 2Z suffix indicates steel shields on both sides, while the C3 designation specifies higher internal clearance designed to accommodate expansion during high-speed operation or elevated temperatures.
Key Features
- Single-row deep groove ball bearing design
- Double steel shields on both sides for contamination protection
- Pre-filled with high-quality grease for life-time lubrication
- Increased internal clearance (C3) for high-speed applications
- Optimized for high-speed operation with low noise characteristics
- Supports both radial and axial loads
Technical Specifications
The 6309-2Z/C3 is a 45 mm bore radial/deep groove ball bearing with 100 mm OD, 25 mm width, straight design, double shielded type. The bearing has a limiting speed of 7500 r/min. This bearing is part of the popular 6300 series which contains extra light ball bearings suitable for limited space applications.
Typical Applications
- Electric motors and motor bearings
- Gearboxes and transmission systems
- Pumps and hydraulic machinery
- Industrial fans and blowers
- Machine tool spindles
- Automation equipment and conveyor systems
- HVAC units and compressors
Compatibility & Replacements
Compatible With
- Electric motor assemblies requiring 45mm shaft bore
- Gearbox housings with standard bearing cartridges
- Pump and compressor assemblies in industrial and HVAC applications
- Standard shaft mounting with press-fit or snap-ring groove compatibility
Replaces / Drop-In Replacement For
- SKF 6309-2Z (open-design variant)
- SKF 6309 (standard open bearing)
- Other OEM 45×100×25mm deep groove ball bearings with C3 clearance
Works With
- Shaft sizes 45mm nominal diameter
- Standard ISO 10 bearing seat designs
- Grease-lubricated bearing systems
- Oil-lubricated applications (with grease purging)
