D/W R156 R-2ZS
D/W Series Stainless Steel Flanged Miniature Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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D/W R156 R-2ZS Bearing Product Overview & Core Advantages
The D/W R156 R-2ZS is a miniature single row deep groove ball bearing designed for applications demanding high precision and reliability in compact spaces. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its key advantages include the ability to handle radial loads efficiently, a shielded (2ZS) design for contamination protection, and pre-lubrication for immediate, maintenance-free operation. This bearing is ideal for instruments and devices requiring smooth, long-lasting performance.
D/W R156 R-2ZS Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| R156 | Basic bearing designation with specific inch dimension series. | Defines the compact size and load capacity. |
| R | Flanged outer ring. | Simplifies mounting and positioning, enhancing axial location. |
| 2ZS | Contact seals on both sides. | Provides superior protection against contaminants and retains lubricant effectively. |
D/W R156 R-2ZS Bearing Structural Features & Performance Benefits
All-Stainless-Steel Construction: The rings, balls, and cage are made of stainless steel, providing excellent resistance to corrosion and enabling use in harsh environments. This contributes to a long bearing service life.
Flanged Design: The flanged outer ring allows for easy and secure axial location within a housing, simplifying assembly and reducing the need for complex housing designs.
Shielded & Pre-Lubricated: The 2ZS contact seals effectively shield the bearing interior from dust and moisture while retaining the pre-applied grease. This combination offers a maintenance-free solution, reducing downtime and total cost of ownership.
Precision & Load Capacity: Built to P0 tolerance class with a CN radial internal clearance, this bearing ensures consistent and smooth operation. Its dynamic and static load ratings make it suitable for applications with significant radial loads relative to its miniature size.
D/W R156 R-2ZS Bearing Typical Application Areas
The D/W R156 R-2ZS is ideally suited for a wide range of miniature and precision applications, including:
- Precision Instruments and optical devices
- Small Electric Motors and miniature gearboxes
- Medical devices and dental handpieces
- Office automation equipment (e.g., printers, scanners)
- Radio-controlled models and drones
