1307KJ
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1307KJ
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.51 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Taper 1:12
Outside diameter
80 mm
Outside diameter tolerance
-0.013mm to 0
Width
21 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.5 mm
Inner Ring Dimensions
Shoulder diameter inner ring
51.55 mm
Outer Ring Dimensions
Shoulder diameter outer ring
67.5 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5962 lbf
Radial static load rating
1912 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
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
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1307KJ Bearing Product Overview & Core Advantages
The 1307KJ is a double row angular contact ball bearing designed for demanding applications requiring high rigidity and precise operation. This metric bearing features a tapered bore (1:12) for secure shaft mounting. Its double row design enables it to accommodate significant combined loads, including substantial radial loads and bidirectional axial loads, making it an ideal choice for compact, high-performance assemblies. Manufactured from chrome steel and pre-lubricated, it offers reliable performance and is engineered for applications where precision and durability are critical.
1307KJ Bearing Model Code Explained, Specifications & Naming Convention
The model number 1307KJ can be broken down as follows:
- 1307: Basic designation indicating a double row angular contact ball bearing with a 35mm bore and 80mm outside diameter.
- K: Denotes a tapered bore with a conicity of 1:12.
- J: Indicates the internal radial clearance is set to the CN (Normal) group.
1307KJ Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball construction provides superior rigidity and enables the bearing to handle high radial dynamic load ratings of 5962 lbf and significant bidirectional axial loads simultaneously.
- Precision Tapered Bore: The 1:12 tapered bore ensures a tight, interference fit on the shaft, eliminating creep and enhancing rotational accuracy, which is vital for precision applications.
- Optimized Material & Lubrication: Components made from chrome steel offer excellent wear resistance and durability. The bearing is pre-lubricated for immediate use and long service life within its specified temperature range of -30°C to 110°C.
- Steel Cage: The pressed steel cage ensures reliable guidance of the balls at the limiting speed of 11,000 rpm, contributing to stable high-speed operation.
1307KJ Bearing Typical Application Areas
The 1307KJ is well-suited for a variety of industrial machinery and precision equipment, including:
- Machine Tool Spindles
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Precision Agricultural Machinery
- Material Handling Equipment
