D/W R12-2Z
D/W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
D/W R12-2Z
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.061 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.75"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
1.625"
Outside diameter tolerance
-0.00078" to -0.00031"
Width
0.43752"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
1812 lbf
Radial static load rating
1124 lbf
Limiting speed
19 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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D/W R12-2Z Bearing Product Overview & Core Advantages
The D/W R12-2Z is a single row deep groove ball bearing designed for exceptional performance in demanding applications. Engineered with stainless steel construction throughout its rings, balls, and cage, it offers superior corrosion resistance. Its key advantage lies in its ability to efficiently handle radial loads while its shielded design (2Z) and pre-applied grease lubrication ensure long-term, maintenance-free operation. This combination makes it a compact, reliable, and durable solution for applications requiring high precision and consistent performance across a wide temperature range.
D/W R12-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W R12 | Standard inch-series bearing designation with specific bore and outside diameter dimensions. |
| -2Z | Indicates the bearing is equipped with non-contact shields on both sides. This provides effective protection against contamination while minimizing friction, contributing to the bearing's high limiting speed. |
D/W R12-2Z Bearing Structural Features & Performance Benefits
- Robust Stainless Steel Construction: All components (rings, balls, cage) are manufactured from stainless steel, providing excellent resistance to corrosion and enabling use in harsh environments.
- Optimized Radial Load Capacity: The deep groove raceway and single-row design are engineered to support significant radial dynamic and static loads (1812 lbf and 1124 lbf respectively), ensuring stable operation.
- High-Speed Capability: The combination of a low-friction stainless steel cage and non-contact shields (2Z) allows for a high limiting speed of 19,000 rpm, making it suitable for demanding rotational applications.
- Maintenance-Free & Long Service Life: The bearing is pre-lubricated with grease and sealed with shields, creating a closed system that is protected from contaminants. This design eliminates the need for re-lubrication, offering a long, maintenance-free service interval.
- Precision & Consistency: Manufactured to P0 tolerance class and standard CN radial internal clearance, this bearing delivers reliable and predictable performance for general precision applications.
D/W R12-2Z Bearing Typical Application Areas
- Food Processing and Packaging Machinery
- Medical and Dental Equipment
- Chemical Processing Pumps and Mixers
- Precision Instruments and Optical Devices
- Agricultural Machinery
- Marine and Washdown Environments
