1311KJC3

1300 Series Self Aligning Ball Bearings

1311KJC3 1300 Series Self Aligning Ball Bearings
1311KJC3 1300 Series Self Aligning Ball Bearings

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Part No.
Part No. 1311KJC3

Basic Information

Bearing type Ball
System of measurement Metric
Construction Double Row
Weight 1.6 kg
Seal type Open
For load direction Radial

Main Dimensions

Bore diameter 55 mm
Bore diameter tolerance -0.015mm to 0
Bore type Taper 1:12
Outside diameter 120 mm
Outside diameter tolerance -0.015mm to 0
Width 29 mm
Width tolerance -0.15mm to 0
Chamfer dimension 2 mm

Inner Ring Dimensions

Shoulder diameter inner ring 77.9 mm

Outer Ring Dimensions

Shoulder diameter outer ring 101.4 mm

Performance

Temperature range -30° to 110 °C
Radial dynamic load rating 11408 lbf
Radial static load rating 4050 lbf
Limiting speed 7.5 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 No drawings available at the moment, will be launched soon
In Stock
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1311KJC3 Bearing Product Overview & Core Advantages

The 1311KJC3 is a double row angular contact ball bearing designed for demanding industrial applications requiring high rigidity and superior load handling. This metric bearing features a tapered bore (1:12) and is pre-lubricated, enabling it to accommodate significant combined loads—both radial and axial forces. Its robust construction and C3 radial internal clearance make it exceptionally suitable for applications where shaft expansion and high operational temperatures are factors, ensuring reliable performance in high-speed environments.

1311KJC3 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
1311 Standard bearing series designation, indicating the bearing dimensions (55mm bore, 120mm OD, 29mm width).
K Tapered bore with a 1:12 ratio, facilitating secure mounting and dismounting on adapter sleeves or withdrawal sleeves.
J Specifies the internal design and cage material, in this case, a pressed steel cage.
C3 Indicates a greater than normal radial internal clearance, ideal for applications with thermal expansion or where interference fits are used.

1311KJC3 Bearing Structural Features & Performance Benefits

  • High Rigidity & Load Capacity: The double row ball complement and robust steel cage provide exceptional stiffness, enabling the bearing to support high radial dynamic load ratings of 11408 lbf and handle combined loads effectively.
  • Optimized for Precision & Speed: Manufactured from high-grade chrome steel for both rings and balls, the bearing ensures consistent performance and durability. The C3 clearance and optimized internal geometry contribute to stable operation at limiting speeds up to 7,500 rpm.
  • Simplified Mounting & Maintenance: The tapered bore allows for precise axial positioning and secure fixation, reducing installation complexity. Being pre-lubricated, it offers immediate operational readiness and reduced maintenance needs within its specified temperature range of -30°C to 110°C.

1311KJC3 Bearing Typical Application Areas

The 1311KJC3 is engineered for robust performance in a variety of industrial machinery, including:

  • Electric Motors & Generators
  • Industrial Gearboxes and Transmission Systems
  • Material Handling Equipment such as conveyor pulleys
  • Vibrating Screens and other machinery subject to moderate vibrations
  • Agricultural Machinery and Construction Equipment
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