Bellows Couplings BK

Please select a Metal Bellows Coupling:
MODEL SERIES BK BK1 BK2 / BKC / BKL BKH BK3 BK4 BK5 BK6 BK7 BK8 BKM BKZ
General  | Technical information | 2D and 3D download

Bellows coupling model BK7
with expanding shaft from 15-300 Nm

  • for hollow shaft mounting
  • suited for space restricted installations
  • easy mounting
  • backlash-free and torsionally rigid

Design:
On one side with a single radial clamping screw ISO 4762. On one side an expanding shaft with tapered clamping element.

Temperature range:
-30 to +120° C (3.6 F to 270)

Backlash:
Absolutely backlash-free.

Brief overloads:
Acceptable up to 1.5 times the value specified.

Service life:
R+W Bellows Coupling BK7 are maintenance-free and have an infinite life, if the technical ratings are not exceeded.

Material:
Bellows are made from flexible, high-grade stainless steel. The hubs are made from aluminium.

Fit tolerance:
On the hub/shaft connection 0.01 to 0.05 mm.

Speeds:
Up to 10,000 rpm, in excess of 10,000 rpm available with a finaly balanced version.

Non-standard application:
Custom designs with varied tolerances, keyways, non-standard material and bellows are available upon request.

Technical Data:

  • rated torque from 15 - 300 Nm
  • shaft diameter from 8 - 60 mm
 Metal Bellows Coupling

Properties of bellows coupling model BK7:

  • compact design, conserves space while
  • saving cost
  • backlash-free and torsionally rigid
  • low moment of inertia
  • compensation for misalignment

  This Shaft Coupling is available as ATEX version
for applications in explosive atmosphere.

Possible applications for Bellows Coupling BK7:

Applications of Metal Bellow Couplings

Press releases:
About this Bellows Coupling / Shaft Coupling in stainless steel please click here

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