1219 KC3
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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1219 KC3 Bearing Product Overview & Core Advantages
The 1219 KC3 is a metric double row angular contact ball bearing engineered for demanding applications requiring high radial load capacity and precise operation. Featuring a 1:12 tapered bore for secure shaft mounting, this bearing delivers exceptional rigidity and stability. Its open design allows for customized lubrication strategies, making it ideal for high-performance systems where combination loads are present. Manufactured from high-grade chrome steel and utilizing a durable nylon cage, the 1219 KC3 is built for reliability in precision industrial environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1219 | Standard bearing designation indicating bearing dimensions (95mm bore, 170mm OD, 32mm width). |
| K | Denotes a tapered bore with a 1:12 ratio for precise interference fit on tapered shafts. |
| C3 | Specifies a greater radial internal clearance than normal, suitable for applications with thermal expansion or where higher operating temperatures are expected. |
1219 KC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball construction provides superior stiffness and enables the bearing to support significant radial loads (Dynamic: 14,332 lbf, Static: 6,075 lbf), making it robust against combination loads.
- Precision Tapered Bore: The 1:12 taper ensures a secure, concentric fit on the shaft, enhancing rotational accuracy and minimizing slippage under high torque.
- Optimized High-Speed Performance: The lightweight nylon cage reduces centrifugal forces, contributing to a high limiting speed of 5,000 rpm while maintaining stability.
- Versatile Lubrication & Operation: The open seal type allows for the use of specialized lubricants to suit specific operational needs, supporting a broad temperature range from -30°C to 110°C.
- Enhanced Durability: Components made from chrome steel offer excellent wear resistance and fatigue life, ensuring long-term performance in harsh conditions.
1219 KC3 Bearing Typical Application Areas
The 1219 KC3 is ideally suited for heavy-duty and precision machinery, including:
- Industrial Gearboxes and Transmissions
- Vibrating Screens and Conveyor Systems
- Agricultural and Construction Machinery
- Electric Motor Bearings requiring a tapered bore fit
- Pump and Compressor Shafts subjected to high radial forces
