1301
1300 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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1301 Bearing Product Overview & Core Advantages
The 1301 metric double row ball bearing is a precision-engineered component designed for applications requiring high radial load capacity and compact design. This open-type bearing features a cylindrical bore and is manufactured from chrome steel for superior durability. With its double row construction, it delivers enhanced rigidity and stability compared to single row alternatives, making it ideal for high-precision machinery where reliable performance under radial loads is critical. The bearing comes pre-lubricated and maintains stable operation across a temperature range of -30° to 110°C.
1301 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 13 | Series designation indicating specific internal geometry and load capacity |
| 01 | Bore diameter code representing 12mm bore size |
| Open | No seals or shields, allowing for re-lubrication and maximum speed capability |
| CN | Standard radial internal clearance for normal operating conditions |
1301 Bearing Structural Features & Performance Benefits
Double Row Design: The two rows of balls provide significantly higher radial load capacity and improved rigidity compared to single row bearings, enabling better support for rotating components.
Precision Construction: Manufactured with tight dimensional tolerances (bore: -0.008mm to 0, outside diameter: -0.011mm to 0) ensuring precise fit and reliable performance in high-precision applications.
Brass Cage Technology: The brass cage ensures optimal ball guidance and distribution, contributing to smooth operation at the limiting speed of 28,000 rpm.
Material Excellence: Both rings and balls are made from chrome steel, providing excellent wear resistance and fatigue life under demanding operating conditions.
Standard Internal Clearance: The CN radial clearance offers optimal performance for most industrial applications with normal temperature variations.
1301 Bearing Typical Application Areas
- Electric Motors and small precision motors requiring high-speed capability
- Industrial Gearboxes and transmission systems
- Machine Tool Components including spindles and auxiliary drives
- Material Handling Equipment such as conveyor systems
- Agricultural Machinery and implement drives
- Precision Instruments and measuring devices
