D/W R8
D/W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
D/W R8
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.017 kg
Tolerance class
P0
Seal type
Open
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
0.25"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
994 lbf
Radial static load rating
531 lbf
Limiting speed
36 X 1000 rpm
Lubrication
None
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 Bearing Product Overview & Core Advantages
The R8 bearing is a precision-engineered single row deep groove ball bearing designed for exceptional performance in demanding applications. Manufactured entirely from stainless steel, it offers superior corrosion resistance and durability. This bearing is optimized for radial load applications and features a CN radial internal clearance for reliable operation. Its compact design, high limiting speed of 36,000 rpm, and compliance with ROHS and REACH standards make it an ideal choice for high-reliability and precision-critical environments.
D/W R8 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix / Feature | Technical Meaning | Benefit |
|---|---|---|
| Open (No Seal) | No contact seals are fitted. | Allows for higher speeds and minimal friction; suitable for environments where external sealing is provided. |
| P0 Tolerance Class | Standard dimensional and geometrical tolerance per ISO. | Ensures consistent performance and interchangeability for general applications. |
| CN Radial Clearance | Normal radial internal clearance group. | Provides optimal balance for a wide range of operating temperatures and fits. |
| Lubrication: None | Bearing is supplied without grease or oil. | Offers flexibility for the user to apply a specialized lubricant suited to the specific application requirements. |
D/W R8 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The bearing rings, balls, and cage are made from stainless steel, providing excellent resistance to corrosion and enabling use in harsh or washdown environments.
- High-Speed Capability: The open design and precision-ground components contribute to a high limiting speed of 36,000 rpm, making it suitable for demanding rotational applications.
- Robust Load Capacity: With a dynamic load rating of 994 lbf and a static load rating of 531 lbf, this bearing reliably handles significant radial loads in a compact form factor.
- Precision Engineering: Manufactured to P0 tolerance class with a CN clearance, ensuring smooth, quiet, and vibration-free operation for enhanced machine performance.
D/W R8 Bearing Typical Application Areas
This R8 single row ball bearing is ideally suited for a variety of precision applications, including:
- High-Speed Medical and Dental Handpieces
- Precision Instrumentation and Optical Devices
- Food Processing and Packaging Machinery
- Small Electric Motors and Spindles
- Laboratory and Analytical Equipment
