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Metric Size Standard Miniature Ball Bearings SMR85 2rs

Metric Size Standard Miniature Ball Bearings SMR85 2rs

The SMR85 2rs is a compact miniature ball bearing measuring 5mm by 8mm by 2.5mm, crafted entirely from stainless steel for durability. It supports radial loads up to 37 lbf and can spin at speeds reaching 47,700 RPM.

Its sealed design with nitrile rubber shields keeps dirt out and lubrication in, making it low-maintenance. The bearing operates smoothly in temperatures from -30°C to 110°C.

With ABEC1 precision and MC3 clearance, it offers reliable performance for small applications. Ideal for use in miniature motors, dental tools, or precision instruments where space is limited.

Weighing just 0.34g, it’s lightweight yet sturdy. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number SMR85 2rs
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 5 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 9
  • Ball Dia 0.8000 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 Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Shield Material Nitrile Rubber
  • Dynamic Radial Load 37 lbf
  • Static Radial Load 15 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 47700 rpm
  • Weight 0.34 g
  • Price（$） 1.242
Metric Size Standard Miniature Ball Bearings SMR85 2rs dimension drawing
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Features

Why Choose SMR85 2rs Bearing for Precision Tasks?

SMR85 2rs Bearing features a sealed design with stainless steel rings and balls, ensuring smooth radial load handling.
Its compact size of 5 mm×8 mm×2.5 mm makes it ideal for miniature applications requiring precision.
The ABEC1 tolerance class and MC3 radial clearance provide consistent performance in sensitive equipment.
With a maximum speed of 47,700 rpm, it delivers reliable operation in high-speed scenarios.

Application

Common Applications of SMR85 2rs Bearing
SMR85 2rs Bearing is widely used in small electric motors, such as those found in cooling fans or portable devices, thanks to its compact size and sealed design. The stainless steel construction ensures it handles everyday wear without corrosion.

Where Is SMR85 2rs Bearing Used?
You’ll often spot SMR85 2rs Bearing in precision instruments like dental drills or camera lenses, where smooth rotation is key. Its low friction and ABEC1 tolerance make it reliable for delicate tasks.

Ideal for Precision: SMR85 2rs Bearing
SMR85 2rs Bearing fits perfectly in 3D printers, ensuring accurate movement of print heads. The nitrile rubber seals keep dust out, maintaining performance over time.

Automotive vs Aerospace: Applications of SMR85 2rs Bearing
In automotive dashboards, SMR85 2rs Bearing supports small gauges and switches, while in drones, it aids in stabilising lightweight rotors. Its metric sizing suits both fields well.

Practical Applications of SMR85 2rs Bearing
For household gadgets like electric toothbrushes, SMR85 2rs Bearing provides quiet, efficient operation. The sealed design also makes it resistant to moisture and debris.

Q&A

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