1308-K C/3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1308-K C/3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.68 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Taper 1:12
Outside diameter
90 mm
Outside diameter tolerance
-0.015mm to 0
Width
23 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
61.47 mm
Outer Ring Dimensions
Shoulder diameter outer ring
80.2 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7605 lbf
Radial static load rating
2520 lbf
Limiting speed
9.5 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:
$ 36.68
/ each
In Stock
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1308-K C/3 Bearing Product Overview & Core Advantages
The 1308-K C/3 is a double row angular contact ball bearing designed for applications requiring high rigidity and precise operation. This metric bearing features a tapered bore (1:12 ratio) and an open design, optimized to handle significant radial loads. Its double row construction provides enhanced stability and load-carrying capacity compared to single row designs, making it ideal for demanding industrial environments where high rigidity and reliability are paramount. The bearing comes pre-lubricated and is manufactured from high-grade chrome steel for extended service life.
1308-K C/3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1308-K | Basic bearing designation indicating a double row angular contact ball bearing with a tapered bore. |
| C/3 | Specifies the radial internal clearance group. C3 clearance is greater than standard (CN), making it suitable for applications with thermal expansion or where interference fits are used. |
1308-K C/3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior rigidity and can support substantial radial loads (Dynamic: 7605 lbf / Static: 2520 lbf), ensuring stable performance under heavy-duty conditions.
- Tapered Bore Design: The 1:12 taper facilitates secure mounting on adapter sleeves or tapered shafts, ensuring a tight fit and minimizing slippage.
- Optimized for Speed: With a limiting speed of 9,500 rpm and a lightweight nylon cage, this bearing is engineered for high-speed applications, reducing centrifugal forces and maintaining operational accuracy.
- Pre-Lubricated & Ready-to-Use: Factory-applied lubrication and an open seal type allow for effective initial operation. The C3 radial clearance accommodates thermal expansion, enhancing performance in varying operational temperatures.
- Material Integrity: Constructed from chrome steel for both rings and balls, offering excellent wear resistance and durability. Compliant with ROHS and REACH standards.
1308-K C/3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Material Handling Equipment such as conveyor pulleys
- Agricultural Machinery including tractor transmissions
- Pump and Compressor Systems requiring robust radial support
- Electric Motor Applications where high speeds and reliability are critical
