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Metric Size Standard Miniature Ball Bearings MR83

Metric Size Standard Miniature Ball Bearings MR83

The MR83 is a compact ball bearing with a 3mm bore and 8mm outer diameter, crafted from sturdy chrome steel. It supports radial loads up to 76 lbf and spins efficiently at speeds up to 60,000 RPM.

Its open design simplifies lubrication, while the stainless steel cage ensures durability. The bearing operates smoothly in temperatures from -30°C to 110°C.

With a lightweight build of just 0.51g, it’s ideal for small devices like precision instruments or miniature motors. Compliant with RoHS and REACH standards, it’s a reliable choice for various applications.

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Product Parameters

  • Part Number MR83
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 3 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 8 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 2.5 mm
  • Width Tolerance -0.12mm to 0
  • Ball Qty 7
  • Ball Dia 1.2000 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Seal Type Open
  • System of Measurement Metric
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 76 lbf
  • Static Radial Load 25 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 60000 rpm
  • Weight 0.51 g
  • Price（$） 1.035
Metric Size Standard Miniature Ball Bearings MR83 dimension drawing
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Features

Why Choose MR83 Bearing for Precision Tasks?

MR83 Bearing is crafted with chrome steel rings and balls, ensuring precise radial load handling.
Its compact size of 3mm×8mm×2.5mm makes it ideal for miniature applications requiring accuracy.
The stainless steel cage maintains ball alignment, enhancing smooth operation and reducing friction.
With a maximum speed of 60,000 rpm, it delivers reliable performance in high-speed scenarios.

Application

Common Applications of MR83 Bearing
MR83 Bearing is widely used in small electric motors, such as those found in cooling fans or handheld devices, thanks to its compact size and reliable radial load capacity. The open design allows for easy lubrication, ensuring smooth operation over time.

Industrial Uses of MR83 Bearing
In precision instruments like optical encoders or small gearboxes, MR83 Bearing provides stable performance due to its ABEC1 tolerance class. The chrome steel construction ensures durability even in high-speed applications.

Where Is MR83 Bearing Used?
MR83 Bearing fits perfectly in consumer electronics, including printers and small appliances, where space is limited but performance is key. Its lightweight design and high-speed capability make it a go-to choice for compact machinery.

Optimized for Performance: MR83 Bearing
For automation systems like robotic arms or 3D printers, MR83 Bearing offers precise movement with minimal friction. The stainless steel cage adds extra resistance to wear, extending its lifespan in demanding environments.

Medical vs Industrial: Where MR83 Bearing Excels
In medical devices like dental tools or lab equipment, MR83 Bearing’s small size and reliability are crucial. Meanwhile, its industrial applications include small conveyors or spindle drives, where consistent performance is needed.

Q&A

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