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Metric Size Standard Miniature Ball Bearings MR74 2rs
Metric Size Standard Miniature Ball Bearings MR74 2rs

Metric Size Standard Miniature Ball Bearings MR74 2rs

The MR74 2rs is a compact miniature ball bearing with a 4mm bore and 7mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 49 lbf and spins smoothly at speeds up to 60,000 RPM.

Its sealed design with nitrile rubber shields keeps dirt out and lubrication in, making it low-maintenance. The stainless steel cage ensures reliable performance in small spaces.

This bearing works well in temperatures from -30°C to 110°C, ideal for precision devices like small motors or medical equipment. Its lightweight 0.23g design suits applications where space and weight matter.

Compliant with RoHS and REACH standards, it’s a safe choice for various industries. The ABEC1 tolerance offers good precision for everyday use.

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Product Parameters

  • Part Number MR74 2rs
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 4 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 7 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 2.5 mm
  • Width Tolerance -0.12mm to 0
  • Ball Qty 8
  • Ball Dia 1.0000 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 49 lbf
  • Static Radial Load 19 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 60000 rpm
  • Weight 0.23 g
  • Price($) 1.035

Features

How Does MR74 2rs Bearing Reduce Friction?

MR74 2rs Bearing features a sealed design with nitrile rubber shields, keeping contaminants out and lubrication in.
This ensures smooth operation and reduces friction, even at high speeds up to 60,000 rpm.
The chrome steel rings and balls provide durability, while the stainless steel cage maintains alignment.
With a compact size of 4mm×7mm×2.5mm, it’s ideal for precision applications where space is limited.

Why Choose MR74 2rs Bearing for Precision Tasks?

MR74 2rs Bearing is designed with ABEC1 tolerance, ensuring consistent performance in precision instruments.
Its radial clearance of 0.002mm to 0.013mm allows for smooth rotation with minimal play.
The sealed construction protects against dust and moisture, extending its service life.
Weighing just 0.23g, it’s perfect for lightweight and compact devices.

Built for Reliability: MR74 2rs Bearing

MR74 2rs Bearing’s chrome steel construction offers excellent resistance to wear and corrosion.
The dynamic radial load capacity of 49 lbf ensures reliable performance under stress.
Its stainless steel cage keeps the balls evenly spaced, reducing vibration and noise.
Operating in temperatures from -30° to 110°C, it adapts to various environments.

Engineered for Precision: MR74 2rs Bearing

MR74 2rs Bearing’s single-row design and 8-ball configuration provide balanced load distribution.
The nitrile rubber seals prevent lubricant leakage and block contaminants.
With a bore diameter of 4mm and tight tolerances, it suits high-precision applications.
Its lightweight design makes it a practical choice for miniature machinery.

Application

Common Applications of MR74 2rs Bearing
MR74 2rs Bearing is widely used in small electric motors, such as those found in cooling fans and power tools, thanks to its compact size and sealed design. The chrome steel construction ensures durability even in high-speed operations.

In automation systems, MR74 2rs Bearing fits neatly into robotic arms and 3D printers, providing smooth rotation with minimal maintenance. Its ABEC1 tolerance class makes it reliable for precision movements.

For consumer electronics like printers and handheld devices, MR74 2rs Bearing offers quiet performance and long service life. The nitrile rubber seals help keep dust and debris out, extending its usability.

Medical devices such as dental tools and lab equipment benefit from MR74 2rs Bearing’s consistent performance. The stainless steel cage adds extra resistance to wear in sterile environments.

Q&A

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