D/W R1-4 R
D/W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
D/W R1-4 R
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.0004 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.07813"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.25"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.0937"
Width tolerance
-0.005" to 0"
Outer Ring Dimensions
Flange outer diameter
0.29598"
Flange thickness
0.023"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
37 lbf
Radial static load rating
11 lbf
Limiting speed
100 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 R1-4 R Bearing Product Overview & Core Advantages
The D/W R1-4 R is a single row deep groove ball bearing designed for high-precision applications requiring reliable radial load capacity in a compact form factor. Manufactured entirely from stainless steel, it offers excellent corrosion resistance and is suitable for a wide operating temperature range. Its open design allows for versatile lubrication options and facilitates high-speed operation, making it an ideal choice for instruments and small machinery demanding precision and durability.
D/W R1-4 R Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| D/W | Manufacturer / Series Designation | Identifies the bearing series from a specific manufacturer. |
| R1-4 R | Size Designation | Specifies the bearing dimensions in inches: 1/8" Bore (0.07813"), 1/4" OD. |
| (No Suffix) | Open / No Seal | Allows for custom lubrication and enables higher limiting speeds. |
| (Implied) | Stainless Steel Construction | Provides corrosion resistance for harsh environments and complies with RoHS/REACH. |
D/W R1-4 R Bearing Structural Features & Performance Benefits
- All-Stainless Steel Construction: The rings, balls, and cage are made from stainless steel, ensuring superior corrosion resistance and operational stability within a temperature range of -30°C to 120°C.
- Optimized for Radial Loads: As a deep groove ball bearing, it is primarily designed to handle significant radial dynamic load ratings (37 lbf) efficiently, making it a robust solution for radial support.
- High-Speed Capability: The open design and precision construction contribute to a high limiting speed of 100,000 rpm, suitable for demanding high-speed applications.
- Precision & Reliability: Manufactured to ABEC 1 (P0) tolerance class with a standard radial internal clearance (CN), ensuring consistent performance and smooth operation in precision assemblies.
D/W R1-4 R Bearing Typical Application Areas
This miniature precision bearing is ideally suited for applications where small size, corrosion resistance, and high-speed operation are critical. Key sectors include:
- Precision Instruments: Optical encoders, medical devices, and measuring equipment.
- Small Electric Motors: High-speed spindles in dental handpieces and miniature DC motors.
- Office Automation Equipment: Scanners, printers, and copiers.
- Robotics and Automation: Small joints, guides, and actuators.
