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Metric Size Standard Miniature Ball Bearings 628 2rs

Metric Size Standard Miniature Ball Bearings 628 2rs

The 628 2RS is a compact metric ball bearing with an 8mm bore and 24mm outer diameter, sealed for protection against dust and moisture. Made from chrome steel, it handles radial loads up to 637 lbf and spins smoothly at speeds up to 28,000 RPM.

Its double rubber seals keep lubrication in and contaminants out, while the stainless steel cage ensures durability. The bearing operates well in temperatures from -30°C to 110°C.

This model is ideal for small machinery, electric motors, or hobby projects where reliable performance is needed. Weighing just 18.5g, it’s lightweight yet sturdy for its size.

Compliant with RoHS and REACH standards, it’s a safe choice for various applications. Regular lubrication will help maintain its smooth operation over time.

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Product Parameters

  • Part Number 628 2rs
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 8 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 24 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 8 mm
  • Width Tolerance -0.12mm to 0
  • Ball Qty 7
  • Ball Dia 3.9690 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 637 lbf
  • Static Radial Load 256 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 28000 rpm
  • Weight 18.5 g
  • Price（$） 1.035
Metric Size Standard Miniature Ball Bearings 628 2rs dimension drawing
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Features

How Does 628 2rs Bearing Reduce Friction?

628 2rs Bearing features a sealed design with nitrile rubber shields, preventing contaminants from entering and reducing friction.
The chrome steel construction ensures smooth operation, even at high speeds up to 28,000 rpm.
Its precision-engineered stainless steel cage maintains ball alignment, minimising wear.
With a dynamic radial load capacity of 637 lbf, it delivers reliable performance in various applications.

Application

Common Applications of 628 2rs Bearing
The 628 2rs Bearing is widely used in small electric motors, such as those found in household appliances like fans and blenders. Its sealed design helps keep out dust and moisture, ensuring longer service life in everyday environments.

In automotive applications, 628 2rs Bearing fits well in components like window regulators and wiper motors, where its compact size and radial load capacity are beneficial. The ABEC1 tolerance ensures reliable performance without unnecessary complexity.

For hobbyist projects like RC cars or drones, 628 2rs Bearing offers a balance of affordability and durability. The chrome steel construction handles moderate speeds while the nitrile rubber seals protect against debris.

Medical devices like dental handpieces often use 628 2rs Bearing due to its smooth operation and consistent radial clearance. The stainless steel cage adds corrosion resistance for frequent sterilisation cycles.

In office equipment such as printers and scanners, 628 2rs Bearing operates quietly at high speeds. The metric dimensions make it easy to replace in European and Asian-manufactured devices.

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