D/W R144 R
D/W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
D/W R144 R
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.0003 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.125"
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 R144 R Bearing Product Overview & Core Advantages
The D/W R144 R is a high-precision single row deep groove ball bearing engineered for exceptional performance in compact spaces. Manufactured entirely from stainless steel, it offers superior corrosion resistance and is suitable for a wide operating temperature range. This bearing is designed to handle primarily radial loads and is characterized by its open design and P0 tolerance class, making it an ideal choice for applications demanding high reliability and precision in miniature and instrument-grade machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer designation (Dodge/Wave) |
| R144 | Standard bearing series identifier |
| R | Flange design on the outer ring for simplified mounting and positioning |
D/W R144 R Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing excellent resistance to corrosion and enabling use in harsh environments and clean applications.
- Flanged Outer Ring: The integral flange facilitates easy and precise axial location within a housing, simplifying assembly and reducing the need for complex housing designs.
- High-Precision P0 Tolerance: Manufactured to ABEC 1 (P0) tolerance standards, ensuring consistent running accuracy and smooth operation, which is critical for sensitive instrumentation.
- Open Seal Type: The open design allows for high-speed operation (up to 100,000 rpm) and is suitable for applications where external sealing is provided or where the bearing will be lubricated by the system.
- Standard Radial Internal Clearance (CN): Provides optimal performance for most general applications under normal operating conditions.
D/W R144 R Bearing Typical Application Areas
The D/W R144 R is ideally suited for a variety of miniature and precision applications, including:
- Small Precision Motors and Stepper Motors
- Medical and Dental Handpieces
- Optical Encoders and Precision Instruments
- Office Automation Equipment (e.g., Printers, Scanners)
- RC Models and Small Robotics
- Instrumentation and Control Devices
