D/W R133 R-2ZS
D/W Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
D/W R133 R-2ZS
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.000203 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.0937"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.18748"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.0937"
Width tolerance
-0.005" to 0"
Outer Ring Dimensions
Flange outer diameter
0.23402"
Flange thickness
0.03098"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
18 lbf
Radial static load rating
6 lbf
Limiting speed
95 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
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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D/W R133 R-2ZS Bearing Product Overview & Core Advantages
The D/W R133 R-2ZS is a miniature single row deep groove ball bearing designed for applications demanding high precision and reliability in compact spaces. This inch series bearing features stainless steel construction throughout its rings, balls, and cage, providing excellent corrosion resistance. Its key advantages include the ability to handle radial loads efficiently, a shielded design (2ZS) for contaminant protection, and being pre-lubricated with grease for immediate, maintenance-free operation. Its small size and P0 tolerance class make it ideal for high-precision, compact assemblies.
D/W R133 R-2ZS Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer's prefix (Dunk/Whitney) |
| R133 | The specific bearing series and size designation in the inch system. |
| R- | Flanged outer ring design, facilitating simplified mounting and axial location. |
| 2ZS | Indicates the bearing is shielded on both sides (ZZ). The "S" suffix can denote a stainless steel construction or a specific seal/shield type from the manufacturer, providing effective protection against contaminants while allowing for high-speed operation. |
D/W R133 R-2ZS Bearing Structural Features & Performance Benefits
- Compact & Robust Flange Design: The integral flange on the outer ring (Flange outer diameter: 0.23402") simplifies bearing housing design, ensures precise axial location, and reduces assembly time and cost.
- Corrosion Resistance: Manufactured entirely from stainless steel, this bearing is suitable for applications exposed to moisture, chemicals, or requiring wash-downs, ensuring long service life in harsh environments.
- Shielded & Pre-Lubricated: The double-shielded (2ZS) construction retains the factory-applied grease and effectively excludes larger particulate contaminants. This design supports a limiting speed of 95,000 rpm and offers a maintenance-free solution within its specified temperature range (-30° to 120 °C).
- High-Precision Performance: Built to P0 tolerance class and a standard CN radial internal clearance, this bearing provides reliable and smooth running for precision instruments and mechanisms.
D/W R133 R-2ZS Bearing Typical Application Areas
- Precision Instruments: Optical encoders, medical devices, and laboratory equipment.
- Small Motors and Gearboxes: Stepper motors, servo motors, and miniature drive systems.
- Office Automation Equipment: Printers, scanners, and copiers.
- Radio Control Models: High-performance drones, RC cars, and aircraft.
- Flow Meters and Valves: Where corrosion resistance and compact size are critical.
