1215 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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1215 KC3 Bearing Product Overview & Core Advantages
The 1215 KC3 is a double row angular contact ball bearing designed for applications requiring high rigidity and precision. Featuring a tapered bore (1:12) and C3 radial internal clearance, this metric bearing excels at handling combined radial loads while maintaining dimensional stability. Its double-row construction provides superior stiffness and load distribution compared to single-row designs, making it ideal for precision machinery and industrial equipment where reliable performance under demanding conditions is essential.
1215 KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1215 | Standard bore diameter (75 mm) and series designation |
| K | Tapered bore with 1:12 ratio for precise mounting and positioning |
| C3 | Greater than normal radial internal clearance for thermal expansion compensation |
1215 KC3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball bearing construction provides enhanced stiffness and superior load distribution, capable of handling significant radial dynamic loads (8775 lbf) while maintaining operational stability.
Precision Engineering: Manufactured from chrome steel with tight dimensional tolerances (bore: -0.015mm to 0) ensuring consistent performance in precision applications.
Optimized Thermal Performance: The C3 clearance accommodates thermal expansion during high-speed operation, while the nylon cage contributes to smooth operation at limiting speeds up to 6,700 rpm.
Reliable Operation: Pre-lubricated design with a wide temperature range (-30° to 110°C) ensures consistent performance across various operating conditions.
1215 KC3 Bearing Typical Application Areas
- Machine Tool Spindles and precision rotating systems
- Industrial Gearboxes and transmission systems
- Material Handling Equipment requiring high radial load capacity
- Agricultural Machinery and heavy-duty industrial equipment
- Pump Systems and compressor applications
