Backlash-free Bellows Couplings BK- flexible Shaft Couplings
Torsionally rigid Bellows Couplings from R+W
Precision Press-Fit Shaft Couplings BK6 for Axial Mounting
Taking
up the challenge for greater technical demands in modern machine design
and construction, R+W has developed the unique BK6 axial mounting
series of Bellow Couplings.
This coupling features a unique keyed tapered hub design allowing it to be quickly mounted and dismounted. When the two coupling halves are properly pretensioned this coupling is torsionally rigid with zero backlash. The stainless steel bellow compensates for axial, angular, and lateral misalignment simultaneously making this one of the most versitle couplings on the market.
Conventional hub designs incorporate a tightening screw requiring the assembler to access the coupling through a hole in a flange in order to assemble it to a shaft. Often in a break-down maintenance situation the tightening screw does not line up with the flange access hole making it nearly impossible to disassemble the coupling from the drive shaft. The BK6 is the perfect solution in this situation. The bellow also isolates the shaft bearings of the drive and driven elements from any side loading due to misalignment, thus extending their service life.
These torsionally rigid, low moment of inertia, couplings are specifically suited for high dynamic servo applications like NC and CNC machine tools, robotic drives, linear actuators, etc.
The shaft hubs are custom bored on each side for shaft sizes from 10 to 60 mm (0.39 to 2.35 in.) with or without keyways. Sizes are available for torque capacities ranging from 15 to 500Nm (133 to 4,425 in. lbs.).
R+W Bellow Couplings with metal bellows and a high torsional stiffness.
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