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Metric Size Standard Miniature Ball Bearings 628zz

Metric Size Standard Miniature Ball Bearings 628zz

The 628zz is a compact, shielded ball bearing with an 8mm bore and 24mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 637 lbf and spins smoothly at speeds up to 28,000 RPM.

Its stainless steel cage and shields protect against dust while maintaining low friction, making it easy to maintain. The bearing operates well in temperatures from -30°C to 110°C.

With a lightweight design at just 18.5g, it’s ideal for small machinery or hobby projects like drones or model cars. The ABEC1 tolerance ensures reliable performance for everyday use.

Compliant with RoHS and REACH standards, it’s a safe choice for various applications. Regular lubrication will keep it running smoothly for longer.

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Product Parameters

  • Part Number 628zz
  • 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 Shielded
  • 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 300 Series Stainless Steel
  • 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 628zz dimension drawing
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Features

How Does 628zz Bearing Reduce Friction?

628zz Bearing features shielded stainless steel construction, minimising friction and protecting against contaminants.
Its chrome steel rings and balls ensure smooth radial load handling, with a dynamic capacity of 637 lbf.

The precision ABEC1 tolerance and MC3 radial clearance enhance performance in high-speed applications.
With a maximum speed of 28,000 rpm, it balances efficiency and durability for miniature applications.

Stainless steel shields and cage resist corrosion, extending service life in varied environments.
The compact 8 mm bore design suits space-constrained installations without compromising reliability.

Application

Common Applications of 628zz Bearing
The 628zz Bearing is widely used in small electric motors, such as those found in household appliances and power tools. Its shielded design helps keep out dust and debris, extending the bearing’s lifespan in everyday use.

How Does 628zz Bearing Improve Performance?
In automation systems, 628zz Bearing ensures smooth rotation in components like conveyor rollers and robotic arms. The ABEC1 tolerance provides reliable precision for consistent operation in light-duty applications.

Perfect Fit for Automation: 628zz Bearing
This bearing works well in 3D printers, where its compact size and shielded construction protect against filament dust. The chrome steel rings offer good durability for continuous printing tasks.

Medical vs Industrial: Where 628zz Bearing Excels
In medical devices like dental drills, 628zz Bearing provides quiet operation essential for patient comfort. For industrial uses, it handles moderate radial loads in machinery like packaging equipment.

Essential Roles of 628zz Bearing
You’ll often find 628zz Bearing in office equipment such as printers and scanners, where its low maintenance needs are ideal. The stainless steel cage prevents corrosion in varied office environments.

Q&A

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