1208JC3
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1208JC3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.42 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Cylindrical
Outside diameter
80 mm
Outside diameter tolerance
-0.013mm to 0
Width
18 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
53.85 mm
Outer Ring Dimensions
Shoulder diameter outer ring
67.5 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4478 lbf
Radial static load rating
1564 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
Price available upon request.
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1208JC3 Bearing Product Overview & Core Advantages
The 1208JC3 is a metric double row angular contact ball bearing designed for applications requiring high radial load capacity and robust performance. Featuring an open construction and C3 radial internal clearance, this bearing is optimized for stable operation under varying thermal conditions and moderate to high-speed applications. Its double row design provides superior rigidity and enables it to handle significant combined loads while maintaining precision. Manufactured from chrome steel with a steel cage, it offers excellent durability and is pre-lubricated for immediate use, making it ideal for demanding industrial environments where reliability is critical.
1208JC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1208 | Basic bearing designation: 12 series, 08 bore size (40mm) |
| J | Snap ring groove on outer ring |
| C3 | Radial internal clearance greater than normal, suitable for applications with thermal expansion or interference fits |
1208JC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact ball bearing configuration provides enhanced stiffness and can support substantial radial loads (dynamic: 4478 lbf, static: 1564 lbf), making it suitable for applications with significant mechanical stresses.
- Optimized for Combined Loads: Engineered to accommodate both radial and moderate axial loads in both directions, ensuring stable performance in complex loading scenarios.
- Speed Performance: With a limiting speed of 11,000 rpm and a steel cage, the bearing maintains integrity and smooth operation at high rotational speeds.
- Thermal & Dimensional Stability: The C3 clearance allows for thermal expansion, reducing the risk of binding under temperature variations (-30°C to 110°C). Precision bore diameter (40 mm) and outside diameter (80 mm) tolerances ensure consistent fit and alignment.
- Durability & Compliance: Constructed from chrome steel for both rings and balls, offering high wear resistance and corrosion protection. Compliant with ROHS and REACH standards for environmental safety.
1208JC3 Bearing Typical Application Areas
- Electric Motors & Gearboxes: Utilized for supporting shafts and handling radial loads in industrial motors and transmission systems.
- Material Handling Equipment: Ideal for conveyor rollers, pulleys, and other machinery requiring robust bearing performance under continuous operation.
- Agricultural Machinery: Applied in tractors, harvesters, and implements where high rigidity and resistance to shock loads are essential.
- Industrial Pumps & Compressors: Suitable for pump shafts and compressor rotors, benefiting from the bearing's ability to manage combined loads and moderate speeds.
- General Machinery: Used in various industrial equipment demanding reliable, precision bearings with consistent dimensional accuracy and load-bearing capacity.
