639/3-2Z Precision Shielded Mini Bearing


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                     Deep groove ball bearing                      

Brand:  639/3-2Z  bearing   
Our Price:$1.50      Ask for quotation
Filling slots:WithoutModel Number:639/3-2Z 
Size:
3mm x 9mm x 3mm
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 639/3-2Z deep groove ball bearing is an advanced, miniature bearing solution designed for applications demanding both compact size and durability. Its high-performance structure includes dual metal shields (2Z), providing excellent protection from external contaminants, thereby extending its service life with minimal maintenance. This bearing is ideally suited for high-precision applications in various industries, including robotics, electronics, and medical devices.

Key Specifications:

  • Inner Diameter (ID): 3 mm

  • Outer Diameter (OD): 9 mm

  • Width (Thickness): 3 mm

  • Seal Type: 2Z – Dual metal shields on both sides

  • Material: High-grade stainless steel

  • Load Capacity: Designed for moderate radial and light axial loads

  • Speed Rating: Optimized for high-speed operation with minimal friction

  • Temperature Range: Built to withstand a broad temperature range for diverse applications

Product Details:

The 639/3-2Z bearing is crafted with a deep groove design that enhances its ability to handle radial and moderate axial loads while maintaining smooth operation. The dual metal shields (designated by "2Z") protect the bearing interior by sealing out dust, moisture, and other environmental contaminants, making it a reliable choice in high-performance applications where cleanliness is essential.

With its compact 3 mm inner diameter, 9 mm outer diameter, and 3 mm width, this bearing is ideal for use in limited-space settings, such as small electric motors, medical devices, and instrumentation. It is designed for smooth, high-speed operation, delivering efficient performance even in demanding environments.

Constructed from premium stainless steel, the 639/3-2Z bearing offers excellent corrosion resistance, enhancing durability across a wide range of conditions. Its low-friction build allows it to run quietly, making it well-suited for precision instruments requiring stability, low noise, and long-lasting performance.

The 639/3-2Z bearing is optimized to combine durability with compact design, making it an outstanding choice for applications that require reliable, high-speed operation with minimal maintenance. Whether for new designs or replacements, this bearing delivers consistent quality, supporting your equipment’s performance and extending its operational lifespan


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


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A bearing supplier serving global customers
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.