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Metric Size Standard Miniature Ball Bearings SMR72 2rs

Metric Size Standard Miniature Ball Bearings SMR72 2rs

The SMR72 2rs is a small, sealed ball bearing with a 2mm bore and 7mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 66 lbf and spins smoothly at speeds up to 56,700 RPM.

Its double rubber seals keep out dust and moisture, while the stainless steel cage ensures quiet operation. The bearing requires lubrication and works in temperatures from -30°C to 110°C.

With a compact size of 2mm×7mm×3mm, it’s ideal for small devices like precision instruments or miniature motors. Weighing just 0.53g, it’s lightweight yet robust for its size.

Compliant with RoHS and REACH standards, this bearing is a reliable choice for applications needing corrosion resistance and long life.

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Product Parameters

  • Part Number SMR72 2rs
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 2 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 7 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 Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Shield Material Nitrile Rubber
  • Dynamic Radial Load 66 lbf
  • Static Radial Load 21 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 56700 rpm
  • Weight 0.53 g
  • Price（$） 2.106
Metric Size Standard Miniature Ball Bearings SMR72 2rs dimension drawing
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Features

Why Choose SMR72 2rs Bearing for Precision Tasks?

SMR72 2rs Bearing features a compact design with dimensions of 2 mm×7 mm×3 mm, making it ideal for precision applications.
Its stainless steel construction ensures resistance to corrosion, while the sealed design protects against dust and moisture.

With a dynamic radial load capacity of 66 lbf, SMR72 2rs Bearing handles light to moderate loads efficiently.
The ABEC1 tolerance class and MC3 radial clearance provide smooth and accurate operation.

SMR72 2rs Bearing supports high-speed performance, reaching up to 56,700 rpm.
Its nitrile rubber seals enhance durability and maintain lubrication, reducing maintenance needs.

Application

Common Applications of SMR72 2rs Bearing
SMR72 2rs Bearing is a great fit for small electric motors, often found in household appliances like fans or handheld tools. Its compact size and sealed design help keep dust and debris out, ensuring smooth operation.

In robotics, SMR72 2rs Bearing works well in miniature joints and pivots, where precision and reliability are key. The stainless steel construction also makes it resistant to corrosion in humid environments.

For medical devices, SMR72 2rs Bearing is used in delicate instruments like dental drills or lab equipment. The low friction and consistent performance make it a dependable choice for sensitive applications.

Automation systems benefit from SMR72 2rs Bearing in components like conveyor guides or sensor mounts. Its lightweight design and high-speed capability suit fast-paced production lines.

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