1208 K
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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1208 K Bearing Product Overview & Core Advantages
The 1208 K is a metric double row angular contact ball bearing engineered for applications requiring high radial load capacity and compact design. Featuring a tapered bore (1:12) for precise shaft fitting, this precision bearing delivers exceptional rigidity and stable rotational performance. Its open design, combined with nylon cage construction, enables smooth operation at high speeds up to 11,000 rpm. Pre-lubricated for immediate use, it offers reliable performance across a wide temperature range (-30° to 110°C), making it ideal for demanding industrial environments where combination loads and space constraints are critical factors.
1208 K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 1208 | Standard bore diameter 40 mm, outside diameter 80 mm, width 18 mm | Standard bearing dimensions for easy interchangeability |
| K | Tapered bore (1:12 ratio) | Enables precise mounting and adjustment of internal clearance |
1208 K Bearing Structural Features & Performance Benefits
Double Row Design: The two-row ball arrangement provides enhanced radial load capacity and superior rigidity compared to single row bearings, effectively handling combination loads in compact spaces.
Nylon Cage Construction: The lightweight nylon cage reduces centrifugal forces, enabling high-speed operation up to 11,000 rpm while maintaining low noise and vibration levels.
Tapered Bore Feature: The K-suffix tapered bore (1:12) allows for precise axial positioning and clearance adjustment during mounting, ensuring optimal preload and bearing performance.
Premium Material Selection: Manufactured from chrome steel for both rings and balls, the bearing delivers excellent wear resistance and durability under demanding operating conditions.
Standard Internal Clearance: CN radial internal clearance provides balanced performance for most industrial applications, accommodating thermal expansion while maintaining smooth operation.
1208 K Bearing Typical Application Areas
- Electric Motors and generators requiring high-speed precision
- Industrial Gearboxes and transmission systems
- Machine Tool Spindles and precision machining equipment
- Pump Systems handling radial and combination loads
- Material Handling Equipment with space constraints
- Agricultural Machinery requiring robust bearing solutions
- Textile Machinery operating at elevated speeds
