212 NR/VK504
200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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212 NR/VK504 Bearing Product Overview & Core Advantages
The 212 NR is a single row deep groove ball bearing designed for high-performance radial load applications. Its snap ring fitted outer ring provides secure axial location, making it ideal for compact housing designs where precise bearing positioning is critical. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing delivers reliable operation and consistent performance in demanding industrial environments. The open design allows for versatile lubrication options, while the all-chrome steel construction ensures durability and long service life.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 212 | Basic bearing series designation |
| NR | Snap ring groove on outer ring for axial location |
212 NR/VK504 Bearing Structural Features & Performance Benefits
Deep Groove Design: Optimized raceway geometry enables excellent radial load capacity while accommodating moderate axial loads in both directions.
Snap Ring Integration: The outer ring features a machined groove for snap ring installation, providing secure axial positioning and simplifying housing design by eliminating the need for complex shoulder machining.
Precision Manufacturing: Built to ABEC 1 | ISO P0 tolerance class with CN radial clearance, ensuring smooth operation and minimal vibration.
High-Speed Capability: With a limiting speed of 6,700 rpm, this bearing is suitable for various high-speed applications when properly lubricated.
Material Excellence: All-chrome steel construction (rings, balls, and cage) provides superior strength, wear resistance, and dimensional stability across the operating temperature range of -30°C to 120°C.
212 NR/VK504 Bearing Typical Application Areas
- Electric Motors and generators requiring reliable radial support
- Industrial Gearboxes where compact design and axial location are critical
- Material Handling Equipment such as conveyor systems and pulley assemblies
- Agricultural Machinery including tractor components and implement drives
- Automotive Components like transmission systems and auxiliary units
- Pump and Compressor applications demanding precise bearing positioning
