1217KC3
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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1217KC3 Bearing Product Overview & Core Advantages
The 1217KC3 is a double row angular contact ball bearing designed for demanding applications requiring high rigidity and precision. This metric system bearing features a 1:12 tapered bore for secure shaft mounting and is optimized to handle significant radial loads. Its double row construction provides enhanced stability and load-carrying capacity in a compact design, making it ideal for high-reliability industrial machinery. The bearing comes pre-lubricated and features a generous C3 radial internal clearance, suitable for applications with thermal expansion considerations.
1217KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1217 | Standard bearing designation (85mm bore × 150mm OD × 28mm width) |
| K | Tapered bore with 1:12 ratio for precise shaft fitting |
| C3 | Greater than normal radial internal clearance for thermal expansion compensation |
1217KC3 Bearing Structural Features & Performance Benefits
High Rigidity Design: The double row construction provides superior stiffness compared to single row bearings, minimizing deflection under heavy radial loads and ensuring precise shaft positioning.
Enhanced Load Capacity: With a dynamic load rating of 10,980 lbf and static load rating of 4,680 lbf, this bearing delivers reliable performance in demanding applications.
Precision Engineering: Manufactured from chrome steel rings and balls with stainless steel cage, ensuring dimensional stability and corrosion resistance. The tight bore diameter tolerance (-0.02mm to 0) guarantees precise fitment.
Thermal Compensation: The C3 clearance accommodates differential thermal expansion between bearing and housing, preventing preload issues in variable temperature environments.
High-Speed Capability: The optimized design supports limiting speeds up to 5,600 rpm, making it suitable for various industrial rotating equipment.
1217KC3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Machine Tool Spindles requiring high precision and rigidity
- Material Handling Equipment such as conveyor systems
- Agricultural Machinery and heavy-duty equipment
- Pump and Compressor Systems demanding reliable bearing performance
- Electric Motor Applications where tapered bore mounting is preferred
