D/W R8 R-2Z
D/W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
D/W R8 R-2Z
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.022 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.5"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
1.125"
Outside diameter tolerance
-0.00078" to -0.00031"
Width
0.31252"
Width tolerance
-0.005" to 0"
Outer Ring Dimensions
Flange outer diameter
1.2252"
Flange thickness
0.06201"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
994 lbf
Radial static load rating
531 lbf
Limiting speed
30 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 R8 R-2Z Bearing Product Overview & Core Advantages
The D/W R8 R-2Z is a precision single row deep groove ball bearing designed for high-performance applications requiring exceptional reliability and dimensional stability. Manufactured entirely from stainless steel, it offers superior corrosion resistance. Its key advantage lies in its ability to efficiently accommodate radial loads while its shielded design (2Z) and pre-applied grease lubrication ensure long-term, maintenance-free operation in demanding environments. This compact and robust bearing is ideal for applications where space is limited and consistent performance is critical.
D/W R8 R-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Prefix/Suffix | Description | Technical Implication |
|---|---|---|
| D/W | Manufacturer Series / Flange Designation | Indicates a specific product series from the manufacturer, featuring a flange for simplified mounting and positioning. |
| R8 | Bore Size Code | Specifies a standard bore diameter of 0.5 inches. |
| R-2Z | Shield Configuration | The "R" may denote a specific seal/shield variant, while "2Z" signifies that the bearing is equipped with non-contact shields on both sides. This provides effective protection against contaminants while minimizing friction, contributing to the high limiting speed. |
D/W R8 R-2Z Bearing Structural Features & Performance Benefits
- Robust Stainless Steel Construction: All components, including rings, balls, and the cage, are made from stainless steel, providing excellent resistance to corrosion and enabling use in harsh or washdown environments.
- Deep Groove Raceway & High Load Capacity: The deep groove geometry allows the bearing to handle significant radial dynamic load ratings (994 lbf) and radial static load ratings (531 lbf), making it suitable for a wide range of industrial loads.
- Integrated Flange for Easy Installation: The flange (OD: 1.2252") facilitates precise axial location and simplifies mounting within a housing, reducing assembly time and cost.
- Shielded & Pre-Lubricated for Longevity: The non-contact 2Z shields retain grease and exclude large particulate contaminants. Combined with pre-applied grease, this design offers a maintenance-free solution with a wide operating temperature range (-30° to 120 °C).
- Precision Tolerances: Manufactured to ABEC 1 (P0) tolerance class and standard radial internal clearance (CN), ensuring smooth, quiet, and reliable operation.
D/W R8 R-2Z Bearing Typical Application Areas
This bearing is ideally suited for applications requiring compact size, corrosion resistance, and reliable performance. Key industries and equipment include:
- Food and Beverage Processing Equipment (conveyors, mixers)
- Medical and Laboratory Devices
- Precision Instruments and Optical Equipment
- Low-Torque Electric Motors and Small Gearboxes
- Agricultural and Packaging Machinery in corrosive environments
