A coupling connects
Put simply, a coupling is nothing more than a connection between two shafts. But shaft couplings can do even more – they transmit the torque, can compensate and protect axial, lateral and angular shaft displacements and vibrations, selectively, expensive machine parts against overload.
Torque transmission
Depending on the application, R + W advises on the suitable coupling type. The amount of torque that is to be transmitted plays a major role here. Metal bellows couplings can transmit Newton meters (the unit of measurement for torque) in the range from 2 to 10,000. SERVOMAX® elastomer couplings, on the other hand, work from 0.5 to 25,000 Nm.
Economically optimized
Depending on the application, the basic properties of a coupling type can be a decision criterion for the selection of the coupling. The R + W metal bellows couplings are torsionally rigid (also called torsionally rigid), ie they are resistant to deformation due to the specific design and the materials used. The so-called BKs are suitable for highly dynamic servo axes of machine tools, woodworking machines, packaging machines, automation systems, printing machines, sheet metal processing machines and gear cutting machines. The elastomer couplings, on the other hand, are pluggable, electrically insulating and vibration-damping. The material and thus the Shore hardness of the elastomer ring are decisive. The so-called elastomer ring is the compensating element of the elastomer coupling. The following Shore hardnesses for the wreaths are covered as standard: 98 Sh A, 64 Sh D, 80 Sh A, 65 Sh D and 64 Sh D and optimize the degree of vibration. The products with the R + W abbreviations EK (elastomer coupling), SP (elastomer coupling for high-speed spindle application) and TX (elastomer coupling also high-performance plastic with feather key connection) are used in servo drive technology, for tool and packaging machines Automation systems, printing machines, in control and positioning technology, in general mechanical engineering, in pumps and agitators and in roller shutter drives. All R + W couplings are durable and maintenance-free if the technical information is observed. The products with the R + W abbreviations EK (elastomer coupling), SP (elastomer coupling for high-speed spindle application) and TX (elastomer coupling also high-performance plastic with feather key connection) are used in servo drive technology, for tool and packaging machines Automation systems, printing machines, in control and positioning technology, in general mechanical engineering, for pumps and agitators and for roller shutter drives. All R + W couplings are durable and maintenance-free if the technical information is observed. The products with the R + W abbreviations EK (elastomer couplings), SP (elastomer coupling for high-speed spindle application) and TX (elastomer coupling also high-performance plastic with feather key connection) are used in servo drive technology for tool and packaging machines Automation systems, printing machines, in control and positioning technology, in general mechanical engineering, for pumps and agitators and for roller shutter drives. All R + W couplings are durable and maintenance-free if the technical information is observed. in control and positioning technology, in general mechanical engineering, in pumps and agitators and in roller shutter drives. All R + W couplings are durable and maintenance-free if the technical information is observed. in control and positioning technology, in general mechanical engineering, in pumps and agitators and in roller shutter drives. All R + W couplings are durable and maintenance-free if the technical information is observed.
Additional functionalities
Frank Kronmüller, authorized representative at R + W: “The coupling itself is an indispensable connecting element. What really sets it apart and where the range of couplings differs are additional functionalities. We at R + W work closely with our customers and regularly implement special designs for special applications. We highly value these special solutions because they always take us a step ahead technologically and we are therefore very close to the wishes and needs of the market. The knowledge gained then flows into our standard series, so that a wide range of customers can benefit from it. Since both are important to us, no customer will have to do without “his” specific coupling in the future either. ”
You will find the R + W shaft couplings here and the right contact person for your region here.