By replacing the originally supplied gear couplings with Mayr ROBA –DS Torsionally Rigid Coupings on machine drives such as under floor pulpers, calender roll drives, paper mills have increased performance, improved reliability and reduced maintenance. With up to 15,000 Nm being transmitted under arduous conditions, the ROBA®–DS Torsionally Rigid Coupling was the obvious choice and having no moving parts the need for lubrication was eliminated thus reducing maintenance costs. With its patented cone seating arrangement between flexible disc and hub flange ensuring backlash free torque transmission , high torque capacity, high impact and alternating torques together with compact overall dimensions.
A major advantage of the maintenance free Mayr ROBA –DS Coupling is that it maintains zero backlash up to the permissible nominal and alternating coupling torque capacity .
The ROBA –DS coupling series offer an advantageous size / price / performance
ratio to meet the requirements of rotating plant and equipment manufacturers where maintenance free , high performance torque transmission is required .
With a torque range covering 60 - 22,000 Nm , the 14 sizes of ROBA®–DS Torsionally Rigid Couplings are able to meet virtually all drive requirements.
The couplings are available as either a single flexible disc or double flexible disc with various spacer sleeve lengths including carbon fibre where high speed and low weight are required. Hubs are available with bores and keyways or with keyway less cone bushing arrangement up to 180 mm bore.