212-2ZNR
200 Series Snap Ring Bearings
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Part No.
Part No.
212-2ZNR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.85 kg
Tolerance class
P0
Seal type
Shielded
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)
Outside diameter of snap ring
116.6 mm
Width of snap ring
2.46 mm
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
12612 lbf
Radial static load rating
11240 lbf
Limiting speed
5.4 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
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In Stock
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212-2ZNR Bearing Product Overview & Core Advantages
The 212-2ZNR is a single row deep groove ball bearing engineered for high-performance industrial applications. This shielded bearing is designed to primarily accommodate radial loads while offering reliable operation in demanding environments. Its key advantages include a robust construction with a snap ring groove on the outer ring for secure axial location, pre-lubrication with grease for immediate use, and a compact design that delivers high reliability and long service life. It is an ideal solution for applications requiring simplified assembly and consistent performance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 212 | Basic bearing series designation, defining the standard boundary dimensions. |
| 2Z | Signifies bearing is equipped with non-contact shields on both sides. This provides effective protection against contamination while minimizing friction, contributing to the high limiting speed. |
| N | Indicates a snap ring groove on the outer ring. |
| R | Denotes the bearing is pre-lubricated with grease, making it ready for immediate installation and use. |
212-2ZNR Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Manufactured from chrome steel rings and balls, this bearing offers a high radial dynamic load rating of 12,612 lbf and a radial static load rating of 11,240 lbf, ensuring durability under significant stress.
- Secure Axial Location: The integrated snap ring groove allows for simple and secure mounting within a housing, preventing axial movement and simplifying the overall assembly design.
- Contamination Protection & High-Speed Capability: The non-contact ZZ shields effectively seal the bearing from dust and debris without generating significant heat from contact friction. This, combined with the stainless steel cage, enables a high limiting speed of 5,400 rpm.
- Maintenance-Free Operation: The bearing is pre-greased and sealed for life, requiring no relubrication. This makes it a low-maintenance solution suitable for applications where regular servicing is difficult.
- Standard Precision: Manufactured to P0 tolerance class and standard CN radial internal clearance, it provides consistent and reliable performance for a wide range of general industrial uses.
212-2ZNR Bearing Typical Application Areas
The 212-2ZNR is versatile and well-suited for various sectors, including:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Industrial Fans and Blowers
