1309K
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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1309K Bearing Product Overview & Core Advantages
The 1309K metric double row angular contact ball bearing represents a high-performance solution for applications requiring superior rigidity and precise operation. Engineered with a 1:12 tapered bore, it facilitates secure mounting and precise adjustment on adapter sleeves or withdrawal sleeves. This bearing is designed to accommodate significant combined loads (radial and axial) simultaneously, making it ideal for demanding industrial environments. Its open design allows for versatile lubrication options, while the nylon cage contributes to smooth, high-speed operation and quiet running.
1309K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1309 | Standard bearing series designation, indicating the core dimensions: 45mm bore, 100mm OD. |
| K | Denotes a tapered bore with a 1:12 taper ratio. This feature allows for precise axial positioning and secure fitting on a sleeve. |
1309K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball construction provides exceptional rigidity, enabling the bearing to handle substantial radial dynamic loads (8775 lbf) and static loads (3015 lbf), as well as axial loads from both directions.
- Optimized High-Speed Performance: The lightweight nylon cage ensures stable guidance of the balls at high rotational speeds, contributing to a limiting speed of 8,500 rpm with minimal friction and heat generation.
- Precision Tapered Bore: The 1:12 tapered bore ensures a tight, interference fit on a shaft when used with an adapter sleeve, eliminating inner ring creep and enhancing operational reliability.
- Standard Internal Clearance: The CN grade radial internal clearance is suitable for a wide range of common operating conditions and applications.
1309K Bearing Typical Application Areas
This double row angular contact ball bearing is widely used in machinery requiring robust performance and high precision, including:
- Industrial Gearboxes and Transmissions
- Material Handling Conveyors
- Agricultural Machinery
- Vibrating Screens and other equipment with combined loads
- Pillow Block Housings utilizing adapter sleeves
