Precision W 639/2-2Z Miniature Deep Groove Ball Bearing for High-Speed Applications


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                     Deep groove ball bearing                      

Brand:  W 639/2-2Z bearing   
Our Price:$1.50      Ask for quotation
Filling slots:WithoutModel Number:W 639/2-2Z
Size:
2mm x 6mm x 2.5mm
Number of rows:1
Locating feature, bearing outer ring:None
Bore type:Cylindrical
Cage:Sheet metal
Matched arrangement:No
Radial internal clearance:CN C2 C3 C4
Tolerance class:Class P6 (P5)
Material, bearing:Bearing steel
Seals Type:Open type   ZZ  2Z  2RS1  DDU VV  DW
LubricantGrease
Deep groove ball bearing with seals or shields

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance





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Knowledge and introduction of bearings

The W 639/2-2Z miniature deep groove ball bearing is crafted for precision applications, demanding high-speed and low-friction performance. Its compact design and durable construction make it ideal for a variety of industries, including electronics, small machinery, and automation. Manufactured with high-grade stainless steel, this bearing ensures enhanced resistance against wear, corrosion, and high temperatures, making it suitable for challenging environments and extended usage.

This bearing features a double metal shield (2Z), providing effective protection against contaminants while retaining lubrication. The double shielding also extends the bearing’s lifespan, reducing maintenance needs and ensuring consistent performance over time. The W 639/2-2Z belongs to a class of miniature bearings renowned for their versatility and resilience in applications where precision and reliability are paramount.

Key Features and Benefits:

  • High Precision: Ensures smooth, low-vibration performance at high speeds.

  • Enhanced Durability: Made with high-grade stainless steel for corrosion and wear resistance.

  • Double Shielded Design (2Z): Protects against contaminants and retains lubrication, reducing the need for maintenance.

  • Low Friction: Optimized for minimal friction, improving efficiency in high-speed applications.

  • Compact and Lightweight: Fits into restricted spaces without sacrificing load capacity.

Technical Specifications:

  • Model Number: W 639/2-2Z

  • Type: Deep Groove Ball Bearing

  • Material: Stainless Steel

  • Inner Diameter (d): 2 mm

  • Outer Diameter (D): 6 mm

  • Width (B): 2.5 mm

  • Seal Type: Double Metal Shields (2Z)

  • Dynamic Load Capacity (C): 0.104 kN

  • Static Load Capacity (C0): 0.034 kN

  • Speed Rating (Grease): 65,000 RPM

  • Weight: Approximately 0.4 g

The W 639/2-2Z is engineered for consistent, long-lasting performance, delivering reliability in small yet crucial applications. Perfect for industries where quality and precision are non-negotiable, this bearing supports smooth rotational movement and reduces wear, helping maximize the efficiency of compact systems. Whether used in robotics, medical devices, or high-speed micro-machinery, the W 639/2-2Z provides exceptional operational life and dependable performance.


For further details on this product please directly contact our sales department under timson@dmsw.com 


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Timson Power Technology (Shanghai) Co., Ltd

Our Timson Power Technology (Shanghai) Co., Ltd was founded in 2012 and we beganattempting online transactions through the Bearing Mall in 2014. Collectively our staff have decades of experience in the bearing trade and we are also authorised distributors of some of the world’s leading manufacturers, meaning we can offer industry leading service and prices.