D/W R144-2Z
D/W Series Stainless Steel Miniature Bearings
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D/W R144-2Z Bearing Product Overview & Core Advantages
The D/W R144-2Z is a precision miniature ball bearing designed for demanding applications requiring high reliability and compact design. As a single row deep groove ball bearing, it excels at handling radial loads while also accommodating moderate axial loads in both directions. Manufactured entirely from stainless steel and featuring integral shields with pre-applied grease, this bearing offers excellent corrosion resistance and is ready for immediate use in a wide temperature range, making it ideal for high-precision, long-life applications.
D/W R144-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| D/W | Manufacturer's series prefix for miniature inch bearings. |
| R144 | The specific bearing size designation within the series. |
| 2Z | Signifies the bearing is shielded on both sides. This provides effective protection against contaminant ingress while minimizing friction, contributing to the bearing's high limiting speed. |
D/W R144-2Z Bearing Structural Features & Performance Benefits
- Compact & Robust Construction: The single row deep groove raceway and all-stainless steel construction (rings, balls, cage) provide a robust and compact solution with high resistance to corrosion and wear.
- Optimized for High Speeds: The combination of a low-friction stainless steel cage, precision-ground components, and shielded design allows for a high limiting speed of 85,000 rpm, making it a capable high-speed bearing.
- Ready-to-Use & Long-Lasting: The bearings are pre-lubricated with grease, offering a maintenance-free solution right out of the package. The shielded design helps retain lubrication and exclude contaminants, ensuring long service life and consistent performance.
- Precision Tolerances: Manufactured to ABEC 1 (P0) tolerance class and standard radial internal clearance (CN), ensuring smooth and quiet operation with high running accuracy.
D/W R144-2Z Bearing Typical Application Areas
Due to its miniature size, high-speed capability, and corrosion resistance, the D/W R144-2Z is widely used in:
- Precision Instruments: Optical encoders, medical devices, laboratory equipment.
- Small Motors & Drives: Stepper motors, miniature DC motors, fan motors.
- Office Automation: Printers, scanners, copiers.
- Robotics: Small robotic joints, drone motors, miniature gearboxes.
- Any application requiring a reliable, compact ball bearing with excellent speed performance.
