1211KTNC3
1200 Series Self Aligning Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
1211KTNC3 Bearing Product Overview & Core Advantages
The 1211KTNC3 is a double row angular contact ball bearing designed for applications requiring high rigidity and combined load capacity. Featuring a metric system and tapered bore (1:12), this precision bearing excels in handling significant radial loads while maintaining dimensional stability. Its optimized internal geometry and C3 radial internal clearance make it suitable for demanding industrial environments where reliable performance under varying operational conditions is essential.
1211KTNC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1211 | Standard bore diameter (55 mm) and dimension series |
| K | Tapered bore with 1:12 ratio for precise shaft mounting |
| TN | Nylon cage for reduced weight and smooth operation |
| C3 | Greater than normal radial internal clearance for thermal expansion |
1211KTNC3 Bearing Structural Features & Performance Benefits
High Rigidity Design: The double row construction provides enhanced stiffness and stability, making it ideal for applications requiring minimal deflection under load. This design significantly improves system accuracy and longevity.
Superior Load Capacity: Engineered to handle substantial radial loads (dynamic: 6210 lbf, static: 2385 lbf), this bearing maintains consistent performance in demanding operating conditions. The optimized contact angle distribution ensures reliable load distribution across both rows.
Optimized High-Speed Performance: The nylon cage (TN) reduces rotational mass and friction, contributing to the bearing's limiting speed of 9,000 rpm. This makes it suitable for high-speed applications while maintaining operational stability.
Precision Engineering: Manufactured from chrome steel for both rings and balls, the bearing offers excellent wear resistance and durability. The tapered bore design ensures secure mounting and precise alignment on tapered shaft seats.
1211KTNC3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Machine Tool Spindles requiring high precision and rigidity
- Agricultural Machinery and heavy equipment
- Material Handling Systems with combined loading requirements
- Pump and Compressor applications demanding reliable performance
- Electric Motor applications where tapered bore mounting is preferred
