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Inch Size Miniature Ball Bearings R156

Inch Size Miniature Ball Bearings R156

The R156 is a small, inch-sized miniature ball bearing measuring 0.1875″ in bore diameter and 0.3125″ in outer diameter, crafted from durable chrome steel. It handles radial loads up to 69 lbf and spins smoothly at speeds up to 53,000 RPM.

Its open design makes lubrication straightforward, while the stainless steel cage ensures reliable performance. The bearing operates efficiently in temperatures ranging from -86°F to 230°F.

With a lightweight build at just 0.4 grams, it’s ideal for compact applications like small motors or precision instruments. Compliant with RoHS and REACH standards, it’s a safe and practical choice for various uses.

The ABEC1 tolerance and MC3 radial clearance provide a balance of precision and affordability, suitable for general-purpose machinery.

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Product Parameters

  • Part Number R156
  • 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 10
  • Bore Dia 0.1875"
  • Bore Dia Tolerance -0.0003" to 0"
  • Outer Dia 0.3125"
  • Outer Dia Tolerance -0.0003" to 0"
  • Width 0.1094"
  • Width Tolerance -0.005" to 0"
  • Ball Dia 0.03941"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 69 lbf
  • Static Radial Load 27 lbf
  • Max Speed 53000 rpm
  • Temperature Range -86 to 230 °F
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.4 g
  • Price（$） 1.035
Inch Size Miniature Ball Bearings R156 dimension drawing
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Features

Why Choose R156 Bearing for Precision Tasks?

R156 Bearing is crafted with chrome steel rings and balls, ensuring precise radial load handling.
Its compact size of 0.1875″×0.3125″×0.1094″ makes it ideal for miniature applications.

The stainless steel cage maintains ball alignment, reducing friction and wear.
With a maximum speed of 53,000 rpm, it delivers reliable performance in high-speed scenarios.

R156 Bearing operates in temperatures from -86 to 230 °F, suitable for varied environments.
Its ABEC1 tolerance class ensures consistent accuracy for precision tasks.

Application

Where Is R156 Bearing Used?
R156 Bearing is commonly used in small electric motors and precision instruments due to its compact inch size and reliable radial load capacity. Its open design simplifies lubrication, making it suitable for high-speed applications.

In automation systems, R156 Bearing ensures smooth operation in components like robotic arms and 3D printers. The chrome steel construction provides durability while maintaining low friction during continuous use.

For consumer electronics, R156 Bearing fits well in devices like cooling fans and small printers. Its lightweight design and ABEC1 tolerance make it a practical choice for everyday gadgets requiring consistent performance.

Medical devices such as dental tools benefit from R156 Bearing’s precise movement and stainless steel cage. The wide temperature range allows it to perform reliably in various clinical environments.

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