1306KC3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1306KC3
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
C3
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:
$ 29.66
/ each
In Stock
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1306KC3 Bearing Product Overview & Core Advantages
The 1306KC3 is a metric double row angular contact ball bearing engineered for applications requiring high rigidity and precise operation. Featuring a tapered bore (1:12) and C3 radial internal clearance, this bearing is optimized to handle significant combined radial and axial loads simultaneously. Its open design, combined with factory-applied lubrication, ensures reliable performance in demanding environments, making it an ideal choice for high-precision machinery where dimensional stability and load capacity are critical.
1306KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1306 | Standard bore diameter (30 mm) and dimension series |
| K | Tapered bore with 1:12 ratio |
| C3 | Greater than normal radial internal clearance for thermal expansion management |
1306KC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior stiffness, enabling it to withstand substantial combined loads while maintaining alignment precision.
- Optimized for Precision Mounting: The tapered bore (1:12) allows for precise interference fit adjustment on tapered shafts, enhancing system stability and minimizing runout.
- Enhanced Thermal Performance: With C3 radial clearance, the bearing accommodates thermal expansion in high-speed or variable-temperature applications, preventing preload and ensuring smooth operation.
- Durable Material Construction: Manufactured from chrome steel rings and balls with a nylon cage, the bearing offers excellent wear resistance and reduced friction, contributing to a limiting speed of 13,000 rpm.
- Pre-lubricated for Immediate Use: Factory-applied lubrication ensures consistent performance from initial operation across a temperature range of -30°C to 110°C.
1306KC3 Bearing Typical Application Areas
- Machine Tool Spindles and precision grinding equipment
- Industrial Pumps and compressors requiring high radial load capacity
- Material Handling Systems with tapered shaft mounting
- Agricultural Machinery and power transmission units
- Electric Motors and gearboxes operating at moderate to high speeds
