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Flanged Deep Groove Ball Bearings W 638/4 R-2RS1
Flanged Deep Groove Ball Bearings W 638/4 R-2RS1

Flanged Deep Groove Ball Bearings W 638/4 R-2RS1

The W 638/4 R-2RS1 is a compact flanged deep groove ball bearing, measuring just 4mm by 9mm with a 4mm width. Its stainless steel construction ensures durability and resistance to corrosion.

This sealed bearing handles radial loads up to 82 lbf and spins smoothly at speeds up to 40,000 RPM. The built-in flange provides secure mounting, making it easier to install in tight spaces.

Grease-lubricated and ready to use, it operates well in temperatures from -30°C to 120°C. The sealed design keeps dirt out and lubrication in, reducing maintenance needs.

Ideal for small devices like dental tools or precision instruments where space is limited. Weighing only 0.0011kg, it’s lightweight yet robust for its size. Compliant with RoHS and REACH standards.

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Product Parameters

  • Part Number W 638/4 R-2RS1
  • Brand TFL
  • Interchangeable SKF
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Seal Type Sealed
  • Tolerance Class P0
  • Radial Clearance Trade No CN
  • Bore Dia 4 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 9 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 4 mm
  • Width Tolerance -0.12mm to 0
  • Flange Outer Dia 10.3 mm
  • Flange Thickness 1 mm
  • Ring Material Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 82 lbf
  • Static Radial Load 26 lbf
  • Max Speed 40000 rpm
  • Temperature Range -30° to 120 °C
  • Lubrication Grease
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.0011 kg
  • Price($) 1.5

Features

How Does W 638/4 R-2RS1 Bearing Reduce Friction?

W 638/4 R-2RS1 Bearing features a sealed design with stainless steel components, ensuring smooth operation and reduced friction.
Its single-row construction and precision-engineered balls enhance radial load handling, up to 82 lbf dynamic capacity.
The grease lubrication and stainless steel cage minimise wear, extending the bearing’s service life.
With a maximum speed of 40,000 rpm, it’s ideal for high-speed applications.

Application

Ideal for Precision: W 638/4 R-2RS1 Bearing
W 638/4 R-2RS1 Bearing is commonly used in small electric motors, where its compact size and sealed design protect against dust and moisture. The stainless steel construction ensures long-lasting performance in humid or corrosive environments.

In consumer electronics like miniature fans, W 638/4 R-2RS1 Bearing provides smooth rotation with minimal noise. Its flange design helps with easy mounting, making it a favourite for space-constrained applications.

For medical devices such as dental tools, W 638/4 R-2RS1 Bearing offers reliable operation due to its high-speed capability and grease lubrication. The sealed design also prevents contamination, which is critical in sterile environments.

Automotive vs Aerospace: Applications of W 638/4 R-2RS1 Bearing
In automotive applications, W 638/4 R-2RS1 Bearing is often found in small actuators or sensors, where its radial load capacity is sufficient. The metric sizing ensures compatibility with various vehicle components.

For aerospace instruments, W 638/4 R-2RS1 Bearing’s lightweight design and temperature resistance make it suitable for navigation systems. The stainless steel material also withstands harsh conditions without compromising performance.

Q&A

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