High precision bellows couplings are used wherever positional accuracy and dynamic motion are in demand. This can be in medical devices, test stands, wind power turbines, servo axes in machine tools, wood processing machinery, packaging machinery and many more high performance equipment types. As a leading provider, R+W is constantly working to expand its product poertfolio of metal bellows couplings for various applications in every size and design. More
Metal bellows vs. elastomer couplings
Mode of operation: metal bellows couplings
Bellows couplings are especially suitable for direct connection between two coaxial shafts. The metal bellows defines the characteristics of the coupling and sompensates lateral, axial and angular shaft misalignment with low restoring forces. Backlash-free, torsionally rigid metal bellows guarantee precise positioning of the driven load, and can be used in highly dynamic cyclic duty applications, as well as at extremely high rotational speeds - up to do 200,000 rpm depending on the model. More
Overview: Metal bellows couplings from R+W
BK1 15 - 10,000 Nm
for simple flange mounting to special drive components
BK2 15 - 10,000 Nm
easy to mount
BKH 15 - 4,000 Nm
radial mounting possible
BKL 2 - 500 Nm
easy to mount
BKC 15 - 500 Nm
for space restricted installations
BKM 20 - 1,000 Nm
extremely compact
BKS 15 - 500 Nm
for high temperatures and aggressove media
BK3 15 - 10,000 Nm
high clamping pressure
SP3 60 - 10,000 Nm
for ISO flange output gearboxes
BK4 15 - 150 Nm
for tapered shafts
BK5 15 - 1,500 Nm
easy installation and removal
BK6 15 - 1,500 Nm
axial mounting possible
BK7 15 - 300 Nm
for hollow shaft mounting
BK8 50 - 2,600 Nm
for ISO flange output gearboxes
Advantages: Metal bellows coupling
In order to be able to take full advantage of the technical properties of the metal bellows, proper installation is critical. Factors such as duty cycle, acceleration torque, inertia and allowable torsional deflection are important factors in the selection process. R+W takes all of these factors into consideration along with general requirements for ease of installation and price efficiency when designing and applying the metal bellows coupling. Thanks to their lack of wear and moving parts R+W bellows couplings succeed in combining economic efficiency with high operational reliability. More
Diversity of metal bellows coupling designs
R+W provides bellows couplings in a wide variety of designs for projects large and small. Depending on the sizing, bellows couplings guarantee torque transmission ranging from 2 to 10,000 Nm. In addition to its standard product portfolio, R+W offers custom designed solutions for even the most specialized requirements, and is constantly working on further development of its technical expertise. More