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Metric Size Standard Miniature Ball Bearings MR84 2rs

Metric Size Standard Miniature Ball Bearings MR84 2rs

The MR84 2RS is a compact metric ball bearing with a 4mm bore and 8mm outer diameter, measuring just 3mm wide. Made from chrome steel, it’s built to handle radial loads up to 76 lbf.

Its sealed design with nitrile rubber shields keeps dirt out and grease in, making it low-maintenance. The stainless steel cage ensures smooth rotation at speeds up to 56,000 RPM.

This bearing suits small devices like drones or miniature motors where space is limited. It operates in temperatures from -30°C to 110°C.

Weighing only 0.39g, it’s lightweight yet durable. Compliant with RoHS and REACH standards for safe use in various applications.

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Product Parameters

  • Part Number MR84 2rs
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 4 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 8 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 3 mm
  • Width Tolerance -0.12mm to 0
  • Ball Qty 7
  • Ball Dia 1.2000 mm
  • Radial Clearance 0.002mm to 0.013mm
  • Seal Type Sealed
  • 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
  • Shield Material Nitrile Rubber
  • Dynamic Radial Load 76 lbf
  • Static Radial Load 25 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 56000 rpm
  • Weight 0.39 g
  • Price（$） 1.035
Metric Size Standard Miniature Ball Bearings MR84 2rs dimension drawing
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Features

How Does MR84 2rs Bearing Reduce Friction?

MR84 2rs Bearing features a sealed design with chrome steel rings and balls, ensuring smooth operation with minimal friction.
The stainless steel cage maintains precise ball alignment, reducing wear and enhancing efficiency.

With a dynamic radial load capacity of 76 lbf, MR84 2rs Bearing handles light to moderate loads effectively.
Its maximum speed of 56,000 rpm makes it suitable for high-speed applications.

The nitrile rubber seals protect MR84 2rs Bearing from dust and moisture, extending its service life.
This design ensures reliable performance in various environments while keeping maintenance needs low.

Application

Common Applications of MR84 2rs Bearing
MR84 2rs Bearing is widely used in small electric motors, such as those found in cooling fans or power tools, thanks to its compact size and sealed design. The chrome steel construction ensures durability even in continuous operation.

Where Is MR84 2rs Bearing Used?
You’ll often spot MR84 2rs Bearing in office equipment like printers and scanners, where its smooth rotation keeps things running quietly. The sealed design helps keep dust out, making it ideal for environments with paper particles.

Built for Heavy-Duty Use: MR84 2rs Bearing
MR84 2rs Bearing handles radial loads well in small machinery, such as conveyor belt rollers or miniature gearboxes. Its stainless steel cage adds extra resilience for long-term use.

Automotive vs Aerospace: Applications of MR84 2rs Bearing
In automotive applications, MR84 2rs Bearing fits well in dashboard instruments or small actuators. For aerospace, its lightweight design makes it suitable for compact control systems.

Perfect Fit for Automation: MR84 2rs Bearing
MR84 2rs Bearing works smoothly in robotic arms and 3D printers, where precision and reliability are key. The sealed design also helps in environments where contamination is a concern.

Q&A

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