1318K
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1318K
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
5.8 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Bore type
Taper 1:12
Outside diameter
190 mm
Outside diameter tolerance
-0.03mm to 0
Width
43 mm
Width tolerance
-0.2mm to 0
Chamfer dimension
3 mm
Inner Ring Dimensions
Shoulder diameter inner ring
122.8 mm
Outer Ring Dimensions
Shoulder diameter outer ring
162.1 mm
Ball & Washer Dimensions
Protrusion of the balls from bearing side faces
1 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
26325 lbf
Radial static load rating
9900 lbf
Limiting speed
4.5 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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1318K Bearing Product Overview & Core Advantages
The 1318K is a double row angular contact ball bearing designed for demanding industrial applications requiring high rigidity and precision. This metric bearing features a tapered bore (1:12) for secure mounting on adapter sleeves or withdrawal sleeves, ensuring precise shaft fixation. Its double row design enables it to accommodate significant combined loads—both radial and axial forces—simultaneously, making it an ideal solution for compact, high-performance machinery where space and reliability are critical.
1318K Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1318 | Standard bore diameter (90 mm) and series designation. |
| K | Indicates a tapered bore with a 1:12 ratio, facilitating precise mounting and dismounting. |
| (No Seal Suffix) | Open design, suitable for applications where external sealing is provided or where relubrication is planned. |
1318K Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior stiffness, effectively handling combined radial and axial loads. With a dynamic load rating of 26,325 lbf and static load rating of 9,900 lbf, it ensures reliable performance under heavy-duty conditions.
- Precision Tapered Bore: The 1:12 tapered bore allows for precise axial positioning and secure clamping on the shaft, minimizing internal clearance and enhancing rotational accuracy.
- Optimized Material Selection: Manufactured from chrome steel rings and balls with a stainless steel cage, the bearing offers excellent durability, corrosion resistance, and stable operation at temperatures from -30°C to 110°C.
- Standard Internal Clearance: The CN radial internal clearance provides balanced performance for most industrial applications, accommodating operational thermal expansion.
1318K Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Material Handling Equipment such as conveyor pulleys
- Agricultural Machinery including tractor PTO shafts
- Pump and Compressor assemblies requiring robust support
- Heavy-duty Electric Motors with adapter sleeve mounting
