1318-KM
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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1318-KM Bearing Product Overview & Core Advantages
The 1318-KM metric double row angular contact ball bearing is engineered for high-performance applications requiring exceptional rigidity and precise operation. Featuring a tapered bore (1:12) for secure shaft mounting, this precision bearing is designed to accommodate significant combined loads, handling both radial forces and axial loads in both directions simultaneously. Its double row construction provides a compact, high-capacity solution, making it ideal for machinery demanding high reliability and dimensional stability. The bearing comes pre-lubricated for immediate use and features a standard CN radial internal clearance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1318 | Standard bearing series designation, indicating the bearing dimensions (90mm bore, 190mm OD, 43mm width). |
| K | Indicates a tapered bore with a 1:12 taper ratio for precise interference fit on tapered shafts. |
| M | Designates the brass cage construction, providing high strength and excellent guidance at elevated speeds. |
1318-KM Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design delivers superior stiffness, enabling the bearing to support substantial radial dynamic load ratings of 26,325 lbf and combined loads effectively.
- Precision Tapered Bore: The 1:12 taper ensures a secure, concentric fit on the shaft, minimizing slippage and maintaining alignment under heavy loads and high speeds.
- Optimized High-Speed Performance: The machined brass cage (M) ensures stable ball guidance, contributing to smooth operation and supporting a limiting speed of 4,500 rpm.
- Durable Material Construction: Manufactured from chrome steel for rings and balls, the bearing offers high wear resistance and long service life in demanding environments.
- Standard Internal Clearance: The CN radial internal clearance is suitable for most industrial applications, providing optimal performance under normal operating conditions.
1318-KM Bearing Typical Application Areas
The 1318-KM is ideally suited for heavy-duty industrial machinery and precision equipment, including:
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Machine Tool Spindles and Axles
- Mining and Construction Machinery
