1318 K/C3
1300 Series Self Aligning Ball Bearings
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Part No.
Part No.
1318 K/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
5.6 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
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:
$ 316.79
/ each
In Stock
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1318 K/C3 Bearing Product Overview & Core Advantages
The 1318 K/C3 is a double row angular contact ball bearing engineered for demanding applications requiring high rigidity and robust load capacity. Featuring a tapered bore (1:12) for precise mounting on adapter sleeves or withdrawal sleeves, this precision bearing is designed to accommodate significant combined loads—simultaneously handling radial forces and axial loads in both directions. Its open design, pre-lubricated for immediate operation, and optimized internal geometry contribute to its suitability for high-reliability machinery. The specified C3 radial internal clearance makes it particularly well-suited for applications with anticipated thermal expansion or heavy interference fits.
1318 K/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1318 | Standard bearing series designation, indicating the core dimensions: 90mm bore, 190mm OD, 43mm width. |
| K | Denotes a tapered bore with a 1:12 taper ratio. This facilitates secure mounting and dismounting on conical shaft seats. |
| /C3 | Indicates a greater than normal radial internal clearance. This is critical for applications involving thermal expansion, heavy interference fits, or where a rigid shaft support is needed. |
1318 K/C3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball construction provides a significantly wider effective load zone compared to single row bearings, resulting in superior rigidity and the ability to handle substantial radial dynamic load ratings (26,325 lbf) and combined loads.
- Tapered Bore Design (K): The conical bore allows for precise axial positioning and a secure, interference fit when mounted with an adapter sleeve, eliminating fretting corrosion and enhancing operational stability.
- Optimized for Challenging Conditions: The specified C3 clearance ensures reliable performance under conditions of shaft thermal expansion or heavy press fits, preventing premature failure due to excessive preload.
- Lightweight & Durable Cage: The Nylon cage reduces centrifugal forces, contributes to smooth operation at the limiting speed (4,500 rpm), and is resistant to wear and corrosion.
- Pre-Lubricated & Ready-to-Use: Supplied with lubricant, the bearing is immediately operational upon installation, reducing setup time and ensuring initial protection.
1318 K/C3 Bearing Typical Application Areas
This bearing is ideally suited for heavy-duty industrial equipment where high rigidity and the ability to manage combined loads are paramount. Key applications include:
- Industrial Gearboxes and power transmission systems
- Vibrating Screens and other material handling equipment
- Agricultural Machinery such as tractors and combines
- Pump and Compressor shafts
- Paper Mill Machinery and other heavy process industry equipment
