1210KTNC3
1200 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
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1210KTNC3 Bearing Product Overview & Core Advantages
The 1210KTNC3 is a metric double row angular contact ball bearing engineered for demanding applications requiring high precision and reliability. Featuring a tapered bore (1:12) and C3 radial internal clearance, this bearing delivers exceptional performance under radial loads while maintaining dimensional stability. Its double row construction provides superior rigidity and load-carrying capacity compared to single row alternatives, making it ideal for precision machinery and industrial equipment where high rotational accuracy is critical.
1210KTNC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 1210 | Basic designation: 50mm bore, 90mm OD | Standard bearing dimensions for compatibility |
| KTN | Tapered bore 1:12 with nylon cage | Secure shaft fitting and high-speed capability |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in high-temperature applications |
1210KTNC3 Bearing Structural Features & Performance Benefits
Double Row Design: The two rows of precision-ground balls provide enhanced stiffness and load distribution, significantly improving bearing rigidity under heavy radial loads.
Tapered Bore Configuration: The 1:12 taper enables precise interference fit on tapered shafts, ensuring secure mounting and eliminating fretting corrosion.
Nylon Cage Construction: The lightweight nylon cage reduces centrifugal forces, enabling higher limiting speeds (10,000 rpm) while providing excellent wear resistance.
C3 Internal Clearance: The optimized radial clearance accommodates thermal expansion in applications with elevated operating temperatures or where interference fits are used.
Chrome Steel Components: Both rings and balls are manufactured from high-grade chrome steel, delivering exceptional durability and fatigue resistance under dynamic load conditions.
1210KTNC3 Bearing Typical Application Areas
- Machine Tool Spindles - Precision machining centers requiring high rigidity and rotational accuracy
- Industrial Gearboxes - Power transmission systems demanding reliable radial load support
- Material Handling Equipment - Conveyor systems and automated guided vehicles
- Agricultural Machinery - Heavy-duty equipment requiring robust bearing performance
- Electric Motors - Industrial motors where tapered bore mounting is specified
