1205 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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1205 KC3 Bearing Product Overview & Core Advantages
The 1205 KC3 is a metric double row angular contact ball bearing engineered for applications requiring high radial load capacity and precision performance. Featuring a tapered bore (1:12) for precise shaft mounting, this bearing delivers exceptional rigidity and stability in compact installations. Its C3 radial internal clearance accommodates thermal expansion, making it ideal for industrial environments with varying operational temperatures. Manufactured with chrome steel rings and balls combined with a nylon cage, it offers reliable operation while maintaining ROHS and REACH compliance for global environmental standards.
Model Code Breakdown
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 1205 | Standard metric bearing designation (25mm bore, 52mm OD) | Standardized bearing dimensions for easy replacement |
| K | Tapered bore (1:12 ratio) | Secure shaft fitting and high rigidity mounting |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in high-temperature applications |
1205 KC3 Bearing Structural Features & Performance Benefits
Double Row Design: The dual ball complement provides enhanced radial load capacity (3218 lbf dynamic rating) while maintaining compact bearing dimensions (15mm width). This configuration delivers superior stiffness and stability compared to single row alternatives.
Precision Tapered Bore: The 1:12 taper enables interference fit mounting on tapered shafts, eliminating clearance and ensuring maximum power transmission efficiency. This feature is particularly valuable in applications requiring precise shaft positioning.
Advanced Cage Technology: The nylon cage minimizes friction and enables smooth operation at limiting speeds up to 18,000 rpm. This lightweight construction reduces centrifugal forces, contributing to the bearing's high-speed capability.
Optimized Material Selection: Chrome steel components provide excellent wear resistance and durability, while the C3 clearance ensures reliable performance across the specified temperature range (-30° to 110°C).
1205 KC3 Bearing Typical Application Areas
- Industrial Gearboxes: Where high radial load capacity and precise shaft alignment are critical
- Electric Motors: Utilizing the tapered bore for secure rotor mounting and high-speed operation
- Material Handling Equipment: Benefiting from the double row design for heavy load support
- Agricultural Machinery: Where environmental compliance and robust construction are essential
- Industrial Pumps and Compressors: Leveraging the C3 clearance for thermal management in continuous operation
