1308K C3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1308K C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.68 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Taper 1:12
Outside diameter
90 mm
Outside diameter tolerance
-0.015mm to 0
Width
23 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
61.47 mm
Outer Ring Dimensions
Shoulder diameter outer ring
80.2 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7605 lbf
Radial static load rating
2520 lbf
Limiting speed
9.5 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
C3
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
Price available upon request.
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1308K C3 Bearing Product Overview & Core Advantages
The 1308K C3 is a double row angular contact ball bearing designed for exceptional performance in demanding applications. Featuring a tapered bore (1:12) and C3 radial internal clearance, this precision bearing delivers superior rigidity and reliable operation under combined loads. Its compact design and optimized internal geometry make it ideal for applications requiring high reliability and precise rotational accuracy.
1308K C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1308K | Basic bearing designation with tapered bore (1:12) |
| C3 | Indicates greater radial internal clearance than normal, suitable for applications with thermal expansion or heavy interference fits |
1308K C3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling excellent performance under combined radial and axial loads
- Precision Engineering: Manufactured with tight dimensional tolerances for consistent performance and precise shaft positioning
- Optimized Internal Clearance: C3 clearance accommodates thermal expansion and interference fits, ensuring reliable operation in varying thermal conditions
- Nylon Cage: Lightweight polymer cage reduces centrifugal forces, contributing to smooth operation at high speeds (up to 9,500 rpm)
- Chrome Steel Construction: High-quality bearing steel provides excellent durability and fatigue resistance for extended service life
1308K C3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Electric Motors and generator applications
- Material Handling Equipment including conveyor systems
- Agricultural Machinery and farm equipment
- Industrial Pumps and compressor systems
- General machinery requiring high rigidity and combined load capacity
