6018NR/C3
6000 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6018NR/C3 Bearing Product Overview & Core Advantages
The 6018NR/C3 is a single row deep groove ball bearing engineered for robust performance in demanding industrial applications. Its open design facilitates high-speed operation, while the integrated snap ring groove on the outer ring simplifies axial location and mounting within a housing. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers reliable precision. A key feature is its C3 radial internal clearance, which is wider than standard, making it particularly suitable for applications with significant thermal expansion or where interference fits are used, ensuring optimal performance under varying operational conditions.
6018NR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6018 | Standard bearing series designation indicating a metric single row deep groove ball bearing with a 90mm bore, 140mm OD, and 24mm width. |
| NR | Signifies the outer ring has a snap ring groove. This feature allows for secure axial location, reducing housing design complexity and costs. |
| C3 | Indicates a greater than normal radial internal clearance. This is critical for applications involving high temperatures or tight fits to prevent preload and ensure smooth operation. |
6018NR/C3 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The open seal type minimizes friction and heat generation, enabling operation at a limiting speed of 4,800 rpm. The precision-ground chrome steel balls and raceways contribute to smooth, high-velocity rotation.
- Robust Load Capacity: With a dynamic load rating of 13,084 lbf and a static load rating of 11,173 lbf, this bearing is designed to handle significant radial loads and moderate axial loads in both directions.
- Simplified Mounting & Axial Location: The integrated snap ring (fitted) on the outer ring provides a reliable and cost-effective method for axial positioning, eliminating the need for complex housing shoulders or locknuts.
- Optimized for Thermal Expansion: The C3 clearance is a critical performance feature, accommodating shaft and housing expansions under operational heat, thus preventing binding and premature failure.
6018NR/C3 Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
