211 NR
200 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
211 NR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.66 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.015mm to 0
Width
21 mm
Width tolerance
-0.15mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Outside diameter of snap ring
106.5 mm
Width of snap ring
2.46 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
10881 lbf
Radial static load rating
9892 lbf
Limiting speed
7 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 17.4
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
211 NR Bearing Product Overview & Core Advantages
The 211 NR is a single row deep groove ball bearing engineered for exceptional radial load capacity and reliable performance in demanding industrial applications. Its key distinguishing feature is the integral snap ring 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, this bearing offers robust durability and consistent operation. The open design allows for versatile lubrication options, making it suitable for a wide range of operating conditions.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 211 | Standard bearing series designation, indicating the bearing dimensions (55mm bore, 100mm OD, 21mm width). |
| NR | Signifies that the outer ring has a snap ring groove and a snap ring is fitted. This feature aids in axial location and secure housing fit. |
211 NR Bearing Structural Features & Performance Benefits
- Snap Ring Locating Feature: The fitted snap ring on the outer ring provides a positive axial locating surface, eliminating the need for complex housing shoulders and locknuts. This design enhances ease of assembly and ensures a secure fit, contributing to overall system high rigidity.
- Radial Load Capacity: The single row deep groove construction is optimized to carry significant radial loads, with a dynamic load rating of 10881 lbf and a static load rating of 9892 lbf, ensuring long service life under heavy-duty conditions.
- High-Speed Capability: The lightweight stainless steel cage and precision engineering enable a high limiting speed of 7000 rpm, making it suitable for applications requiring rapid rotation.
- Material & Construction: Rings and balls made from chrome steel provide high hardness and wear resistance. The open seal type allows for optimal heat dissipation and custom lubrication strategies.
211 NR Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
