W 623
W Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Performance
Materials
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W 623 Bearing Product Overview & Core Advantages
The W 623 is a metric single row deep groove ball bearing engineered for high precision and reliable performance in compact spaces. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing is designed to primarily accommodate radial loads and is characterized by its open design and P0 tolerance class, making it a cost-effective and versatile solution for applications demanding dimensional accuracy and smooth operation.
W 623 Bearing Model Code Explained, Specifications & Naming Convention
The model designation W 623 can be broken down as follows:
- W: Manufacturer's series prefix.
- 6: Indicates a single row deep groove ball bearing.
- 23: Specifies the dimensional series; '2' for the width series and '3' for the diameter series.
Key Implied Specifications: The absence of a suffix indicates an open (unsealed) bearing, supplied without lubrication ("None"), and manufactured to standard CN radial internal clearance and P0 tolerance class.
W 623 Bearing Structural Features & Performance Benefits
The design of the W 623 delivers distinct performance advantages:
- Compact & Lightweight Design: With dimensions of 3x10x4 mm and a weight of just 0.0015 kg, it is ideal for applications with severe space and weight constraints.
- Corrosion Resistance: The use of stainless steel for the rings, balls, and cage ensures reliable operation in humid or corrosive environments and facilitates cleaning.
- High-Speed Capability: The open structure and precision construction contribute to a high limiting speed of 90,000 rpm, suitable for demanding high-speed applications.
- Precision & Reliability: Built to P0 tolerance class and standard CN radial internal clearance, this bearing provides consistent performance and low running noise.
W 623 Bearing Typical Application Areas
The W 623 is widely used in various precision instruments and small machinery, including:
- Small electric motors and miniature gearboxes
- Precision medical devices and dental handpieces
- Optical encoders and instrumentation
- Office automation equipment and small fans
- Radio-controlled models and drones
