D/W R168-2ZS
D/W Series Stainless Steel Miniature Bearings
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Part No.
Part No.
D/W R168-2ZS
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.000614 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
Bore diameter tolerance
-0.00019" to 0.00019"
Outside diameter
0.375"
Outside diameter tolerance
-0.0007" to -0.00031"
Width
0.125"
Width tolerance
-0.005" to 0"
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
48 lbf
Radial static load rating
20 lbf
Limiting speed
60 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
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In Stock
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D/W R168-2ZS Bearing Product Overview & Core Advantages
The D/W R168-2ZS is a single row deep groove ball bearing designed for high precision and reliability in compact applications. Engineered with inch system measurements, it excels in handling radial loads efficiently while offering excellent operational stability. Its construction from stainless steel throughout (rings, balls, and cage) ensures superior corrosion resistance and durability. The bearing is pre-lubricated with grease and features shielded protection, making it ideal for applications requiring minimal maintenance and consistent performance across a wide temperature range (-30° to 120 °C).
D/W R168-2ZS Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| D/W | Manufacturer/Series Designation | Identifies the specific product line and quality standard. |
| R168 | Bore Size Code (0.25") | Specifies the precise bearing bore diameter for accurate fitment. |
| 2ZS | Double Shields (Both Sides) | Provides effective protection against contaminants, enhancing bearing life and enabling maintenance-free operation in many environments. |
D/W R168-2ZS Bearing Structural Features & Performance Benefits
- Robust Single Row Design: The deep groove raceway and stainless steel construction provide a compact yet highly effective solution for radial load support, ensuring smooth rotation and low friction.
- High Precision & Stability: Manufactured to P0 tolerance class with a CN radial internal clearance, this bearing offers consistent performance and precise running accuracy, critical for sensitive applications.
- Corrosion Resistance & Longevity: The use of stainless steel for all critical components (rings, balls, cage) makes the bearing suitable for harsh environments, resisting corrosion and maintaining integrity.
- Sealed & Pre-Lubricated: The 2ZS double shields retain the factory-applied grease and exclude most contaminants, supporting a limiting speed of 60,000 rpm and reducing the need for re-lubrication.
D/W R168-2ZS Bearing Typical Application Areas
This bearing is ideally suited for:
- Precision Instruments: Optical encoders, small medical devices, and laboratory equipment where size, accuracy, and reliability are paramount.
- Small Electric Motors: Used in compact fans, drones, and miniature drives requiring high-speed capability and long service life.
- Office Automation Equipment: Printers, scanners, and copiers that demand quiet, smooth, and maintenance-free operation.
- Robotics and Automation: Small joints, guides, and actuators in robotic systems where corrosion resistance and precision are beneficial.
