1306-K C/3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1306-K C/3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.39 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.01mm to 0
Bore type
Taper 1:12
Outside diameter
72 mm
Outside diameter tolerance
-0.013mm to 0
Width
19 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
45.1 mm
Outer Ring Dimensions
Shoulder diameter outer ring
59.1 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5062 lbf
Radial static load rating
1530 lbf
Limiting speed
13 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
No drawings available at the moment, will be launched soon
Price:
$ 25.8
/ each
In Stock
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1306-K C/3 Bearing Product Overview & Core Advantages
The 1306-K C/3 is a metric double row angular contact ball bearing engineered for applications requiring high precision and robust performance. Featuring a 1:12 tapered bore for precise shaft mounting, this bearing excels at handling combined radial and axial loads simultaneously. Its double row design provides enhanced rigidity and load capacity within a compact cross-section, making it ideal for high-reliability machinery. The bearing comes pre-lubricated and features a nylon cage for smooth operation at high speeds up to 13,000 rpm.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1306-K | Basic bearing designation with tapered bore (1:12) |
| C/3 | Specifies CN radial internal clearance (Normal clearance group) |
1306-K C/3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact construction provides superior stiffness and enables the bearing to handle significant combined radial and axial loads in both directions.
- Precision Tapered Bore: The 1:12 taper ensures a secure, interference fit on the shaft, minimizing inner ring creep and maintaining precise bearing alignment.
- Optimized High-Speed Performance: The lightweight nylon cage reduces centrifugal forces, lowers friction, and contributes to the high limiting speed of 13,000 rpm.
- Pre-Lubricated & Ready-to-Use: Factory-applied lubrication ensures immediate operation and reduces initial maintenance requirements.
- Standard Internal Clearance: The C3 radial internal clearance accommodates thermal expansion in most industrial applications.
1306-K C/3 Bearing Typical Application Areas
This double row angular contact ball bearing is widely used in precision applications including:
- Machine Tool Spindles
- Industrial Gearboxes
- Pumps and Compressors
- Material Handling Equipment
- Precision Agricultural Machinery
