1320-K C/4 W/33
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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1320-K C/4 W/33 Bearing Product Overview & Core Advantages
The 1320-K C/4 W/33 is a metric double row angular contact ball bearing engineered for demanding applications requiring high rigidity and the capacity to support combined loads. Its double row design provides superior radial and axial load support compared to single row bearings, making it an ideal choice for compact, high-performance machinery. Featuring a tapered bore (1:12 ratio) for precise mounting and a CN radial internal clearance, this bearing is optimized for high precision and reliable operation under various load conditions.
Model Code Breakdown
- 1320-K: Basic bearing designation, indicating a double row angular contact ball bearing with specific dimensions.
- C/4: Denotes a tapered bore with a 1:12 ratio, facilitating precise interference fits on adapter sleeves or withdrawal sleeves.
- W/33: Indicates the bearing is supplied with a lubrication groove and three lubrication holes in the outer ring, allowing for efficient re-lubrication during service.
1320-K C/4 W/33 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row construction significantly increases the bearing's rigidity, enabling it to handle substantial radial loads and bidirectional axial loads simultaneously. This makes it suitable for applications with complex loading scenarios.
Optimized for Precision: The tapered bore (C/4) allows for exact axial positioning and secure clamping on a shaft, minimizing run-out and ensuring high running accuracy. The standard CN radial internal clearance is suited for most common operating conditions.
Enhanced Service Life & Maintenance: The inclusion of a lubrication feature (W/33) is a key advantage, enabling periodic re-lubrication to purge contaminants and replenish grease, thereby extending the bearing's operational life and maintaining performance.
Robust Material Construction: Manufactured from chrome steel rings and balls with a stainless steel cage, the bearing offers excellent durability, corrosion resistance, and reliable performance within a temperature range of -30°C to 110°C.
1320-K C/4 W/33 Bearing Typical Application Areas
This bearing's combination of high load capacity, rigidity, and precision makes it well-suited for a variety of industrial applications, including:
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Machine Tool Spindles and Accessories
- Vibrating Screens and other heavy machinery
