212NR
200 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
212NR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.85 kg
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.015mm to 0
Width
22 mm
Width tolerance
-0.15mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
12612 lbf
Radial static load rating
11240 lbf
Limiting speed
6.7 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 22.34
/ each
In Stock
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212NR Bearing Product Overview & Core Advantages
The 212NR metric ball bearing is a single row deep groove ball bearing engineered for reliable performance in radial load applications. Its defining feature is the snap ring fitted to the outer ring, which provides secure axial location within the housing, simplifying assembly and reducing overall system costs. Manufactured to ABEC 1 | ISO P0 tolerance standards, this open-type bearing offers a robust solution for general industrial machinery requiring dependable operation and straightforward installation.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 212 | Basic bearing series and size code. |
| N | Designates a snap ring groove on the outer ring. |
| R | Indicates the snap ring is supplied fitted with the bearing. |
212NR Bearing Structural Features & Performance Benefits
- Snap Ring Locating Feature: The integrated snap ring on the outer diameter allows for positive axial location, eliminating the need for complex housing shoulders and locknuts. This design enhances ease of assembly and provides a secure fit, improving system reliability.
- Robust Load Capacity: Constructed from chrome steel for both rings and balls, this bearing delivers a high radial dynamic load rating of 12,612 lbf and a radial static load rating of 11,240 lbf, ensuring durability under significant radial stresses.
- Standard Precision & Clearance: Manufactured to ABEC 1 (ISO P0) tolerance class with a CN group radial internal clearance, it provides consistent, reliable performance for a wide range of general-purpose applications.
- High-Speed Capability: With a limiting speed of 6,700 rpm, it is suitable for various motor and drive applications. The open design allows for the application of optimal lubrication schemes to further enhance performance.
212NR Bearing Typical Application Areas
This bearing is ideally suited for applications where secure axial location and handling of substantial radial loads are paramount. Common uses include:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Fans and Blowers
- Agricultural Machinery
- Material Handling Equipment
