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Metric Size Standard Miniature Ball Bearings SMR83

Metric Size Standard Miniature Ball Bearings SMR83

The SMR83 is a compact miniature ball bearing with a 3mm bore and 8mm outer diameter, crafted entirely from stainless steel for durability. It supports radial loads up to 68 lbf and spins smoothly at speeds up to 54,000 RPM.

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

With a lightweight build of just 0.51g, it’s ideal for small, precision applications like miniature motors or medical devices. The ABEC1 tolerance and MC3 radial clearance offer a balance of performance and affordability.

Compliant with RoHS and REACH standards, this bearing is a practical choice for both industrial and hobbyist projects requiring reliable radial load support.

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Product Parameters

  • Part Number SMR83
  • 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 Stainless Steel
  • Ball Material Stainless Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 68 lbf
  • Static Radial Load 23 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 54000 rpm
  • Weight 0.51 g
  • Price（$） 1.242
Metric Size Standard Miniature Ball Bearings SMR83 dimension drawing
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Features

Why Choose SMR83 Bearing for Precision Tasks?

SMR83 Bearing is crafted with stainless steel rings and balls, ensuring smooth radial movement in compact spaces.
Its small size of 3 mm×8 mm×2.5 mm makes it ideal for miniature applications requiring precision.
The open design allows for easy lubrication, maintaining performance across a temperature range of -30° to 110°C.
With a maximum speed of 54,000 rpm, it balances efficiency and durability in high-speed operations.

Application

Common Applications of SMR83 Bearing
SMR83 Bearing is widely used in small electric motors, such as those found in handheld power tools, where its compact size and radial load capacity are beneficial. The stainless steel construction ensures resistance to corrosion in humid environments.

Where Is SMR83 Bearing Used?
You’ll often find SMR83 Bearing in precision instruments like optical devices or small-scale automation systems. Its ABEC1 tolerance class provides reliable performance for applications requiring moderate accuracy.

Ideal for Precision: SMR83 Bearing
SMR83 Bearing works well in medical devices like dental tools, where smooth rotation and cleanliness are essential. The open design allows for easy lubrication, maintaining performance over time.

Automotive vs Aerospace: Applications of SMR83 Bearing
In automotive applications, SMR83 Bearing fits well in dashboard instruments or small actuators. For aerospace, it’s suitable for lightweight mechanisms where space and weight are critical factors.

Practical Applications of SMR83 Bearing
SMR83 Bearing is a good fit for consumer electronics, such as cooling fans in laptops, due to its quiet operation and durability. The metric sizing ensures compatibility with a variety of international designs.

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