- Power Transmission - Mechanical components
- Mechanical Transmission
- Bellows coupling
- R + W Coupling Technology
Flexible coupling BKM seriesbellowsshaftbacklash-free
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Characteristics
- Type
- flexible, bellows
- Product applications
- shaft
- Performance
- backlash-free, maintenance-free
- Installation system
- flange
- Torque
Min.: 20 Nm
(14.7512 ft.lb)Max.: 1,000 Nm
(737.5621 ft.lb)- Rotational speed
Min.: 40,000 rpm
(251,327.41 rad.min-1)Max.: 80,000 rpm
(502,654.82 rad.min-1)
Description
Bellows coupling with ultra high torsional stiffness and clamping hub
Features
Extremely compact
High torque density
High torsional stiffness
Temperature range
-30 °C to +100 °C (-22 °F to +212 °F)
Design
Two clamping hubs concentrically mounted to flexible bellows
Brief overloads of up to 1.5x the rated torque are acceptable
Material
Bellows: high grade stainless steel
Hubs:
up to 400 series – aluminum
from series 1000 – steel
Properties
General information
Service life
R+W bellows couplings are fatigue resistant and wear free for an infinite service life, as long as the technical limits are not exceeded
Fit clearance
Overall shaft / hub clearance of 0.01 – 0.05 mm
Special solutions
Various materials, tolerances, dimensions and performance ratings available for custom applications on request
ATEX (Optional)
For use in hazardous zones 1/21 and 2/22, the metal bellows has been authorized under directive 94/9/EG and is available with certification
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Catalogs
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.