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Metric Size Standard Miniature Ball Bearings 685

Metric Size Standard Miniature Ball Bearings 685

The 685 is a miniature ball bearing with a compact size of 5mm by 11mm by 3mm, made from durable chrome steel. It handles radial loads up to 137 lbf and spins smoothly at high speeds up to 45,000 RPM.

Its open design allows for easy lubrication, while the stainless steel cage ensures reliable performance. The bearing operates well in temperatures from -30°C to 110°C.

This model is ideal for small applications like hobby motors or precision instruments where space is limited. Weighing just 1.16g, it’s lightweight yet sturdy for its size.

Compliant with RoHS and REACH standards, it’s a safe and practical choice for various uses. The ABEC1 tolerance ensures decent precision for general applications.

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Product Parameters

  • Part Number 685
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 5 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 11 mm
  • Outer Dia Tolerance -0.008mm to 0
  • Width 3 mm
  • Width Tolerance -0.12mm to 0
  • Ball Qty 8
  • Ball Dia 1.5880 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 Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 137 lbf
  • Static Radial Load 51 lbf
  • Temperature Range -30° to 110 °C
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 45000 rpm
  • Weight 1.16 g
  • Price（$） 1.035
Metric Size Standard Miniature Ball Bearings 685 dimension drawing
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Features

Performance Features of 685 Bearing

685 Bearing is built with chrome steel rings and balls, offering reliable radial load support.
Its dynamic radial load capacity of 137 lbf ensures steady performance in compact applications.

The stainless steel cage maintains ball alignment, reducing friction and wear.
With a maximum speed of 45,000 rpm, it delivers smooth operation for high-speed tasks.

685 Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, ensuring long-lasting performance.

Application

Common Applications of 685 Bearing
685 Bearing is widely used in small electric motors, such as those found in household appliances and power tools. Its compact size and radial load capacity make it ideal for tight spaces where reliable performance is needed.

In robotics, 685 Bearing ensures smooth movement in joints and gears, thanks to its precise ABEC1 tolerance. The open design allows for easy lubrication, extending its lifespan in continuous operation.

For medical devices like dental handpieces, 685 Bearing’s chrome steel construction provides durability and consistent performance. The lightweight design also helps reduce overall device weight without compromising strength.

Where Is 685 Bearing Used?
You’ll often find 685 Bearing in office equipment like printers and scanners, where its low friction supports quiet operation. The metric sizing ensures compatibility with a variety of international machine designs.

In hobbyist projects, such as model cars or drones, 685 Bearing offers a cost-effective solution for small rotating parts. Its stainless steel cage resists wear, even in high-speed applications.

Built for Versatility: 685 Bearing
685 Bearing works well in cooling fans, providing stable rotation with minimal noise. The chrome steel balls and rings ensure long-term reliability in both industrial and consumer settings.

For light-duty conveyor systems, 685 Bearing handles radial loads efficiently. Its 3 mm width fits neatly into compact assemblies without sacrificing performance.

Automotive vs Aerospace: Applications of 685 Bearing
In automotive applications, 685 Bearing is often used in dashboard instruments and small actuators. Its temperature range suits both interior and under-hood environments.

For aerospace models, 685 Bearing’s lightweight design is ideal for reducing weight in non-critical components. The ABEC1 tolerance ensures sufficient precision for hobbyist and prototyping needs.

Q&A

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