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Stainless Steel Deep Groove Ball Bearings W 638/4 X-2Z

Stainless Steel Deep Groove Ball Bearings W 638/4 X-2Z

The W 638/4 X-2Z is a compact stainless steel deep groove ball bearing, measuring just 4mm by 10mm by 4mm. It’s designed for radial loads up to 124 lbf and can handle speeds up to 63,000 RPM.

Its shielded design keeps out dust and dirt, while the all-stainless construction resists corrosion. The bearing comes pre-lubricated with grease for smooth operation.

This model works well in temperatures from -30°C to 120°C, making it suitable for various environments. It’s interchangeable with SKF bearings for easy replacement.

Ideal for small machinery or instruments where space is limited. Compliant with RoHS and REACH standards, it’s a reliable choice for many applications. Weighing only 0.0013kg, it’s lightweight yet durable.

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Product Parameters

  • Part Number W 638/4 X-2Z
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 4 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 10 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 4 mm
  • Width Tolerance -0.12mm to 0
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Seal Type Shielded
  • Tolerance Class P0
  • Radial Clearance Trade No CN
  • Ring Material Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 124 lbf
  • Static Radial Load 55 lbf
  • Temperature Range -30° to 120 °C
  • Lubrication Grease
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 63000 rpm
  • Weight 0.0013 kg
Stainless Steel Deep Groove Ball Bearings W 638/4 X-2Z dimension drawing
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Features

Why Choose W 638/4 X-2Z Bearing for Precision Tasks?

W 638/4 X-2Z Bearing is crafted with stainless steel rings and balls, offering excellent corrosion resistance.
Its compact size of 4 mm×10 mm×4 mm makes it ideal for precision applications where space is limited.

The shielded design protects against contaminants, ensuring smooth operation in various environments.
With a maximum speed of 63,000 rpm, it delivers reliable performance in high-speed scenarios.

W 638/4 X-2Z Bearing’s grease lubrication reduces maintenance needs, making it a practical choice.
Its dynamic radial load capacity of 124 lbf ensures durability in demanding radial load conditions.

Application

Common Applications of W 638/4 X-2Z Bearing
W 638/4 X-2Z Bearing is widely used in small electric motors, such as those found in household appliances like blenders and mixers. Its compact size and stainless steel construction make it ideal for these lightweight applications.

In industrial automation, W 638/4 X-2Z Bearing supports precision movements in equipment like CNC machines and robotic arms. The shielded design helps protect against contaminants in busy workshop environments.

For medical devices, W 638/4 X-2Z Bearing’s corrosion-resistant materials ensure reliable performance in sensitive equipment like dental tools. The grease lubrication also contributes to smooth, quiet operation during delicate procedures.

Where Is W 638/4 X-2Z Bearing Used?
You’ll often find W 638/4 X-2Z Bearing in office equipment like printers and scanners, where its small dimensions fit perfectly. The radial load capacity handles the constant motion of paper feed mechanisms nicely.

In hobbyist projects, W 638/4 X-2Z Bearing works well for DIY drones or model trains due to its lightweight design. The high-speed capability matches the needs of these small, fast-moving applications.

Built for Versatility: W 638/4 X-2Z Bearing
W 638/4 X-2Z Bearing performs reliably in food processing equipment where stainless steel is required for hygiene standards. The shielded design prevents grease from contaminating production lines.

For laboratory instruments, W 638/4 X-2Z Bearing provides precise rotation in devices like centrifuges. Its temperature range covers both cold storage and heated analysis environments.

Light-Duty vs Heavy-Duty: Best Uses for W 638/4 X-2Z Bearing
While W 638/4 X-2Z Bearing excels in light-duty applications like camera lenses, it’s not suited for heavy machinery. The small size makes it perfect for precision instruments requiring smooth rotation.

In consumer electronics, W 638/4 X-2Z Bearing supports cooling fans in computers and gaming consoles. The combination of speed and durability ensures long service life in these constant-use devices.

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