1201KJ
1200 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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1201KJ Bearing Product Overview & Core Advantages
The 1201KJ metric double row angular contact ball bearing represents a precision-engineered solution designed for applications requiring high rigidity and reliable performance under combined loads. Featuring a tapered bore (1:12 ratio), this bearing is optimized for precise mounting on adapter sleeves or withdrawal sleeves, ensuring secure positioning and enhanced operational stability. Its double row ball construction enables it to accommodate significant radial loads while also handling axial loads in both directions, making it exceptionally versatile. Manufactured from high-grade chrome steel for both rings and balls, and utilizing a robust steel cage, the 1201KJ is built for durability and long service life in demanding environments. The open design, coupled with a standard CN radial internal clearance and factory lubrication, ensures smooth operation right from installation, supporting high-speed performance up to its limiting speed.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1201 | Basic bearing designation indicating a metric double row angular contact ball bearing with a 12 mm bore diameter, 32 mm outside diameter, and 10 mm width. |
| K | Denotes a tapered bore with a 1:12 ratio, designed for mounting on adapter or withdrawal sleeves for precise axial location and secure fit. |
| J | Indicates the steel cage design, providing high strength and reliability, suitable for high-speed applications and demanding operating conditions. |
1201KJ Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact ball bearing design inherently provides superior stiffness and stability compared to single row designs. This configuration allows the 1201KJ to effectively support substantial radial loads and bidirectional axial loads simultaneously, making it ideal for applications subject to combined loading scenarios.
Tapered Bore Advantage: The 1:12 tapered bore facilitates precise and secure mounting on a shaft using an adapter sleeve. This ensures minimal runout, improved concentricity, and a firm grip, which is critical for maintaining accuracy in high-precision machinery.
Optimized for High-Speed Operation: The combination of the pressed steel cage (designated by 'J'), high-quality chrome steel components, and optimized internal geometry contributes to a high limiting speed of 32,000 rpm. This makes it a suitable high-speed bearing for various industrial drives.
Precision and Reliability: Manufactured with tight dimensional tolerances on the bore, outside diameter, and width, the bearing ensures consistent performance. The standard CN radial internal clearance is suitable for most common operating conditions, providing a balance between fit, temperature rise, and running accuracy.
1201KJ Bearing Typical Application Areas
The 1201KJ bearing is engineered for robustness and precision, making it well-suited for a range of demanding industrial applications, including:
- Electric Motors and Generators: Particularly in mid-to-high power units where high speeds and combined loads are present.
- Gearboxes and Transmission Systems: Providing reliable support for shafts under significant radial and axial forces.
- Industrial Pumps and Compressors: Where continuous operation, high rigidity, and dependable performance are critical.
- Agricultural and Construction Machinery: In components requiring durable bearings capable of withstanding harsh environments and shock loads.
- Material Handling Equipment: Such as conveyor pulleys and rollers, benefiting from the bearing's load capacity and tapered bore for easy maintenance.
