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  • R+W miniature bellows coupling BKL
  • R+W miniature bellows coupling BKL
R+W miniature bellows coupling BKL

With clamping sleeve

Up to 3Nm

Low price

Light weight, low moment of inertia

Temperature up to 200°C


Structure: Use clamping collar and a side screw ISO4762.

Temperature range: -40 to +200° C

Clearance: The coupling is absolutely no backlash through the clamp connection with strong adhesive force and the patent principle.


The bellows is made of highly elastic stainless steel

Ring material: aluminum

technical parameter:

Rated torque: 3 Nm

The speed can reach 10,000 rpm.

> 10000 revolutions per minute, when using dynamic balance

The shaft diameter is 3-12, 7 mm

Product features of BKL metal bellows coupling:

Zero backlash, torsional rigidity

With misalignment compensation function

Economical coupling

Rated torque 3
Standard bore diameters 3/12.7
Moment of inertia 20
Approximate weight 23
Tightening torque of the  fastening screws 2.3
Torsional stiffness 994
Axial 1
Lateral 0.2
Angular 2
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