D/W ER1038
D/W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
D/W ER1038
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.0024 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.375"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.625"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.15618"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
110 lbf
Radial static load rating
49 lbf
Limiting speed
56 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 ER1038 Bearing Product Overview & Core Advantages
The D/W ER1038 is a single row deep groove ball bearing designed for high-precision applications requiring reliable radial load capacity. Manufactured entirely from stainless steel, it offers excellent corrosion resistance and is suitable for a wide operating temperature range. Its open design and CN radial internal clearance make it a versatile and cost-effective solution for various industrial and precision instruments where contamination is not a primary concern.
D/W ER1038 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer Prefix (D/W Bearings) |
| ER | Bearing Series Designation |
| 1038 | Size Designation (Bore: 0.375", OD: 0.625") |
| (No Suffix) | Indicates an Open (unsealed) bearing with standard P0 tolerance and CN clearance. |
D/W ER1038 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making the bearing suitable for washdown environments, medical equipment, and food processing applications.
- Optimized for Radial Loads: The deep groove raceway and single-row design are engineered to efficiently handle the specified radial dynamic load rating of 110 lbf.
- Precision Performance: Built to ABEC 1 (P0) tolerance class with a CN radial internal clearance, ensuring consistent and smooth operation for general precision applications.
- High-Speed Capability: The lightweight stainless steel cage and optimized geometry contribute to a high limiting speed of 56,000 rpm.
- Application Flexibility: The open seal type allows for custom lubrication schemes, giving engineers control over the lubrication based on specific speed, temperature, and life requirements.
D/W ER1038 Bearing Typical Application Areas
This bearing is ideal for applications requiring compact size, corrosion resistance, and reliable performance, including:
- Precision Instruments and Optical Encoders
- Medical and Dental Handpieces
- Small Electric Motors and Fans
- Food and Beverage Processing Equipment
- Office Automation Equipment
