W 61905-2Z
W Series Stainless Steel Bearings
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Basic Information
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W 61905-2Z Bearing Product Overview & Core Advantages
The W 61905-2Z is a metric single row deep groove ball bearing engineered for precision and reliability in demanding applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to efficiently handle radial loads while its shielded (2Z) design retains factory-applied grease and protects against contaminant ingress, ensuring long-term performance with minimal maintenance. This combination makes it an ideal compact bearing solution for applications requiring high rotational accuracy and durability.
Model Code Breakdown
- W: Indicates a stainless steel construction.
- 61: Denotes the bearing series, signifying a deep groove design with a particularly thin cross-section.
- 905: Specifies the bore size. The last two digits '05' multiplied by 5 gives a bore diameter of 25 mm.
- 2Z: Signifies that the bearing is equipped with non-contact shields on both sides. This provides effective protection against dust and other particles while allowing for high-speed operation.
W 61905-2Z Bearing Structural Features & Performance Benefits
The design of the W 61905-2Z delivers distinct performance benefits. The single row deep groove raceway is optimized for smooth, quiet operation under radial loads. The use of stainless steel for all components (rings, balls, and cage) ensures consistent performance and resistance to corrosion in harsh environments. The non-contact shields (2Z) protect the internal components without significantly increasing friction, contributing to the bearing's high limiting speed of 17,000 rpm. Pre-lubricated with grease, the bearing is ready for immediate use, offering a long service life across a wide temperature range from -30°C to 120°C.
W 61905-2Z Bearing Typical Application Areas
- Medical and Dental Equipment
- Food Processing Machinery
- Precision Instruments and Optical Devices
- Small Electric Motors and Gearboxes
- Office Automation Equipment
