1309-K
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1309-K
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.96 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Taper 1:12
Outside diameter
100 mm
Outside diameter tolerance
-0.015mm to 0
Width
25 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.5 mm
Inner Ring Dimensions
Shoulder diameter inner ring
67.71 mm
Outer Ring Dimensions
Shoulder diameter outer ring
87.8 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8775 lbf
Radial static load rating
3015 lbf
Limiting speed
8.5 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:
$ 53.05
/ each
In Stock
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1309-K Bearing Product Overview & Core Advantages
The 1309-K metric double row angular contact ball bearing is engineered for applications requiring high rigidity and precise operation under combined loads. Featuring a tapered bore (1:12) and open construction, this bearing excels in handling significant radial loads while maintaining dimensional stability. Its double row design provides enhanced load-carrying capacity and stiffness, making it ideal for precision machinery and high-reliability systems. Pre-lubricated and constructed from chrome steel, it delivers consistent performance within a broad operating temperature range.
1309-K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1309 | Standard bearing series designation indicating bearing dimensions: 45mm bore, 100mm OD, 25mm width. |
| K | Indicates tapered bore with 1:12 ratio, facilitating precise mounting and dismounting on adapter sleeves. |
1309-K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior stiffness and can handle substantial radial loads (dynamic: 8775 lbf, static: 3015 lbf), ensuring stable operation in demanding conditions.
- Precision Tapered Bore: The 1:12 taper enables accurate axial positioning and secure fit on shafts, enhancing overall system precision and reducing micro-movements.
- Optimized High-Speed Performance: Equipped with a nylon cage, the bearing supports a limiting speed of 8,500 rpm, reducing friction and enabling smooth operation at high velocities.
- Durable Material & Lubrication: Components made from chrome steel offer excellent wear resistance and fatigue life. Pre-lubrication ensures immediate readiness and reduces initial maintenance.
- Standard Internal Clearance: CN grade radial internal clearance provides optimal performance for most general industrial applications, balancing thermal expansion and operational precision.
1309-K Bearing Typical Application Areas
- Industrial Gearboxes & Transmissions: Where high radial load capacity and rigidity are critical for power transmission.
- Material Handling Equipment: Conveyor systems, pulleys, and other machinery requiring robust double row bearings.
- Agricultural Machinery: Implements and drivetrains that operate under heavy loads and variable conditions.
- Electric Motors & Generators: Supporting shafts in mid-to-large size motors where tapered bore bearings facilitate easier maintenance.
- General Industrial Machinery: Pumps, fans, and other rotating equipment demanding reliable, long-lasting bearing performance.
