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Inch Size Miniature Ball Bearings R166

Inch Size Miniature Ball Bearings R166

The R166 is a compact inch-sized ball bearing, measuring just 0.1875″ in bore diameter and 0.375″ in outer diameter. Made from chrome steel with a stainless steel cage, it’s built for durability and smooth operation.

This single-row radial bearing handles loads up to 136 lbf and spins at speeds up to 50,000 RPM, making it suitable for high-speed applications. Its open design allows for easy lubrication and maintenance.

With a radial clearance of 0.00008″ to 0.0005″, it offers precise performance for small machinery. The bearing operates in temperatures from -86°F to 230°F, ensuring reliability in various conditions.

Ideal for miniature devices like small motors or precision instruments, it’s lightweight at just 0.81g. Compliant with RoHS and REACH standards, it’s a safe and versatile choice.

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Product Parameters

  • Part Number R166
  • Brand TFL
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Seal Type Open
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Radial Clearance 0.00008" to 0.0005"
  • Ball Qty 8
  • Bore Dia 0.1875"
  • Bore Dia Tolerance -0.0003" to 0"
  • Outer Dia 0.375"
  • Outer Dia Tolerance -0.0003" to 0"
  • Width 0.125"
  • Width Tolerance -0.005" to 0"
  • Ball Dia 0.06252"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 136 lbf
  • Static Radial Load 49 lbf
  • Max Speed 50000 rpm
  • Temperature Range -86 to 230 °F
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.81 g
  • Price（$） 1.035
Inch Size Miniature Ball Bearings R166 dimension drawing
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Features

Why Choose R166 Bearing for Precision Tasks?

R166 Bearing is crafted with chrome steel rings and balls, ensuring precision in radial load applications.
Its compact size of 0.1875″×0.375″×0.125″ makes it ideal for miniature machinery and instruments.
The stainless steel cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 50,000 rpm, it delivers both accuracy and efficiency.

Application

Industrial Uses of R166 Bearing
R166 Bearing is commonly used in small industrial equipment like miniature motors and precision instruments, where its compact size and radial load capacity are beneficial. The open design allows for easy lubrication, ensuring smooth operation in tight spaces.

Where Is R166 Bearing Used?
You’ll often find R166 Bearing in consumer electronics, such as small fans or handheld tools, thanks to its lightweight and reliable performance. Its inch sizing makes it a convenient choice for manufacturers working with imperial measurements.

Built for Heavy-Duty Use: R166 Bearing
Despite its small size, R166 Bearing handles radial loads well in applications like dental drills or lab equipment. The chrome steel construction ensures durability even in high-speed scenarios, up to 50,000 rpm.

Automotive vs Aerospace: Applications of R166 Bearing
In automotive settings, R166 Bearing fits well in dashboard components or small actuators, while in aerospace, it’s used in instrumentation due to its precision. The wide temperature range (-86 to 230°F) makes it versatile for extreme environments.

Perfect Fit for Automation: R166 Bearing
R166 Bearing works smoothly in robotic arms and 3D printers, where its low friction and high-speed capability are key. The stainless steel cage adds longevity, even with frequent use in automated systems.

Q&A

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