1312K
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1312K
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
1.9 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.015mm to 0
Bore type
Taper 1:12
Outside diameter
130 mm
Outside diameter tolerance
-0.018mm to 0
Width
31 mm
Width tolerance
-0.15mm to 0
Chamfer dimension
2.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
91.61 mm
Outer Ring Dimensions
Shoulder diameter outer ring
116.7 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
13162 lbf
Radial static load rating
4950 lbf
Limiting speed
6.3 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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1312K Bearing Product Overview & Core Advantages
The 1312K is a metric double row angular contact ball bearing engineered for high-performance applications requiring exceptional rigidity and the capacity to handle combined loads. Its double row design provides superior stability compared to single row bearings, making it ideal for precision machinery. With a tapered bore (1:12) for precise shaft mounting, this bearing delivers reliable operation in demanding environments. The open design, when properly lubricated, supports efficient high-speed operation, while the nylon cage ensures smooth performance and reduced friction.
1312K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1312 | Standard bore diameter code (60 mm) and series designation. |
| K | Indicates a tapered bore with a 1:12 ratio, designed for secure mounting on adapter sleeves or withdrawal sleeves. |
1312K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact construction provides significantly increased radial and axial (combined) load capacity compared to single row designs, offering superior stiffness and minimizing shaft deflection under load.
- Precision Tapered Bore: The K-suffix tapered bore ensures a tight, interference fit on the shaft when used with an adapter sleeve, eliminating creep and providing precise location.
- Optimized High-Speed Performance: The lightweight nylon cage reduces centrifugal forces, lowers friction, and contributes to a high limiting speed of 6,300 rpm. The open design facilitates efficient lubrication flow for heat dissipation.
- Standardized Internal Clearance: Supplied with CN group radial internal clearance, which is the standard for normal operating conditions, ensuring predictable performance and ease of selection.
1312K Bearing Typical Application Areas
This bearing is suited for a wide range of industrial machinery where high rigidity and combined load handling are critical. Key applications include:
- Industrial Gearboxes and power transmission systems
- Vibrating Screens and other material handling equipment
- Agricultural Machinery such as tractor transmissions
- Pump and Compressor shafts
- Paper and Steel Mill machinery
