1304K
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1304K
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.16 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Bore type
Taper 1:12
Outside diameter
52 mm
Outside diameter tolerance
-0.013mm to 0
Width
15 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
33.3 mm
Outer Ring Dimensions
Shoulder diameter outer ring
44.6 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3218 lbf
Radial static load rating
900 lbf
Limiting speed
18 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:
$ 15.27
/ each
In Stock
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1304K Bearing Product Overview & Core Advantages
The 1304K metric ball bearing is a double row angular contact ball bearing designed for exceptional performance in demanding applications. Its core advantage lies in its ability to handle significant combined loads, supporting both radial forces and bidirectional axial loads simultaneously. Featuring a tapered bore (1:12) for precise mounting and a lightweight nylon cage, this bearing delivers high rigidity and smooth operation, making it an ideal choice for high-precision machinery requiring reliable, long-lasting performance.
1304K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1304 | Standard bearing series designation indicating bore diameter (20 mm), outside diameter (52 mm), and width (15 mm). |
| K | Denotes a tapered bore with a 1:12 ratio, allowing for precise axial positioning and secure interference fits on adapter sleeves or withdrawal sleeves. |
1304K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior stiffness and enables the bearing to support substantial radial dynamic load ratings (3218 lbf) and combined loads.
- Precision Tapered Bore: The K-suffix tapered bore ensures a tight, secure fit on a tapered shaft seat, minimizing internal clearance and enhancing rotational accuracy.
- Optimized Cage Design: The nylon cage contributes to lower friction, quieter operation, and is suitable for the bearing's limiting speed of 18,000 rpm.
- Standard Internal Clearance: Supplied with a CN radial internal clearance, which is the normal group, providing a versatile fit for a wide range of standard operating conditions.
- Material & Compliance: Manufactured from chrome steel for both rings and balls, ensuring high durability and fatigue resistance. The bearing is ROHS and REACH compliant.
1304K Bearing Typical Application Areas
This bearing is ideally suited for applications requiring robust performance and precise mounting, including:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Agricultural Machinery
- Material Handling Equipment
- Various machinery utilizing adapter sleeve mounting systems.
