Backlash-free Bellows Couplings BK
Torsionally rigid Bellows Couplings from R+W
High-precision Bellows Coupling Series BK7
Taking
up the challenge for greater demands in modern machine design
and construction, R+W has developed its BK7 series of Bellow Couplings.
This unique coupling was specifically designed to mount to hollow bores with an expanding tapered clamping element and are manufactured with a stainless steel bellow exhibiting very high torsional rigidity with zero backlash. The main advantage of the bellow is that it can compensate for axial, angular, and lateral misalignment simultaneously.
The moment of inertia is also very low due to its low mass and low weight. Ideal for high-speed servo applications where rapid acceleration/deceleration cycles exist.
The coupling hubs are custom bored and can accommodate shaft diameters from 3 to 60 mm (0.12 to 2.36 in.) and the expanding hub can accommodate bores from 8 to 60 mm (0.31 to 2.36 in.).
Sizes are available for torque capacities ranging from 15 to 300 Nm (133 to 2,655 in. lbs.).
R+W Shaft Couplings with metal bellows and a high torsional stiffness.
Download this document about Shaft Coupling / Bellows Coupling BK7 as: Word.doc or Adobe.PDF
Click here for mounting instructions for our Metal Bellows Couplings - please click here !
