211-ZNR
200 Series Snap Ring Bearings
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Part No.
Part No.
211-ZNR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.66 kg
Tolerance class
P0
Seal type
Shielded
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
Grease
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:
$ 17.52
/ each
In Stock
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211-ZNR Bearing Product Overview & Core Advantages
The 211-ZNR is a metric single row deep groove ball bearing engineered for exceptional performance in radial load applications. Its shielded design provides effective contamination protection while the integral snap ring on the outer ring simplifies axial location and mounting. Manufactured to P0 tolerance class with standard CN radial internal clearance, this bearing offers reliable operation and high precision, making it an ideal choice for industrial machinery requiring robust and maintenance-friendly components.
Model Code Breakdown
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 211 | Basic Bearing Series & Size | Indicates a standard metric series with a 55mm bore, 100mm OD, and 21mm width. |
| -ZNR | Snap Ring & Shielded | The ZN suffix denotes a bearing with a snap ring groove and snap ring fitted to the outer ring. The R suffix (often implied with ZN) indicates a shielded (non-contact) design on one side for basic sealing. |
211-ZNR Bearing Structural Features & Performance Benefits
- Robust Load Capacity: Built with chrome steel rings and balls, this bearing delivers a high dynamic load rating of 10,881 lbf and a static load rating of 9,892 lbf, ensuring durability under significant radial stresses.
- Simplified Axial Location: The integrated snap ring eliminates the need for complex housing shoulders or lock nuts, reducing assembly time and cost while providing secure axial positioning.
- Contamination Resistance & Pre-Lubrication: The shielded construction protects against large particulate ingress. Pre-lubricated with grease, the bearing is ready for immediate installation and offers long-term, low-maintenance service within its specified temperature range of -30°C to 120°C.
- High-Speed Capability: The stainless steel cage and optimized design enable a limiting speed of 7,000 rpm, suitable for a wide range of high-speed applications.
211-ZNR Bearing Typical Application Areas
The 211-ZNR is widely used in various industrial sectors due to its reliability and ease of mounting. Key applications include:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Industrial Pumps and Fans
