215 NR
200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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215 NR Bearing Product Overview & Core Advantages
The 215 NR is a single row deep groove ball bearing designed for high-performance radial load applications. Its defining feature is the snap ring (fitted) on the outer ring, which simplifies axial location within a housing, reducing design complexity and assembly time. Manufactured from high-grade chrome steel with a stainless steel cage, it offers reliable operation, a high limiting speed, and is supplied in the standard P0 tolerance class with CN radial internal clearance, making it a versatile and robust solution for general industrial machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 215 | Standard bearing series number, defining the basic dimensions: 75mm bore, 130mm OD, 25mm width. |
| NR | Indicates the outer ring has a snap ring groove and a snap ring is fitted. This facilitates secure axial positioning. |
215 NR Bearing Structural Features & Performance Benefits
- Snap Ring for Simplified Assembly: The pre-fitted snap ring acts as a positive locating shoulder, eliminating the need for complex housing shoulders and locknuts, which reduces machining costs and assembly errors.
- High Radial Load Capacity: The single row deep groove construction is optimized to support high radial dynamic and static load ratings (16,209 lbf and 16,186 lbf respectively), ensuring long service life under demanding conditions.
- High-Speed Capability: The lightweight and durable stainless steel cage ensures stable operation and guides the balls effectively, contributing to the high limiting speed of 5,300 rpm.
- Wide Temperature Range & Open Design: The open (unsealed) design allows for the application of specialized lubricants, and the bearing can operate in a temperature range from -30°C to 120°C.
215 NR Bearing Typical Application Areas
This bearing is ideally suited for applications requiring reliable radial support with simplified housing design. Common uses include:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Fans and Blowers
- Agricultural Machinery
- Material Handling Equipment
