Line Shaft Couplings

R+W Line Shaft Coupling - Series ZA, ZAE & EZ2

SIMPLER, FASTER AND MORE EFFICIENT: LINE SHAFTS FROM R+W

Precision line shaft couplings (also referred to as drive shafts, link shafts and connecting shafts) are used for spanning larger distances between mechanical components. In the past, running shafting across greater lengths required support bearings to prevent the shaft from whipping during rotation. Modern line shafts are available in length of up to six meters without any intermediate support required. Their areas of application are widely diversified: including screw jack lift systems, overhead gantries, conveyors, and in the mechanical synchronization of belt driven linear actuators.

Line shafts are much like precision couplings in their structure, in that the main elements are end hubs of varying designs and flexible joints consisting of metal bellows or elastomer inserts. They also include a cut-to-length, high precision intermediate tube made of aluminium, steel or CFRP (carbon fiber) to provide the spacing. By eliminating time consuming alignment of intermediate support bearings, line shafts save the machine builder time and the cost of additional components. Line shafts from R+W are completely free of backlash and can be used in temperatures ranging from -30° C to + 100° C.

Features & Benefits

  • Low moment of inertia

  • High torsional rigidity

  • Maintenance free

  • For both horizontal and vertical applications

  • Compensation of 3-axis misalignment

  • Standard models can be modified or special versions produced for maximum design versatility.

  • Can be integrated with torque limiters

Specifications

  • For applications 10Nm to 25,000Nm

  • Shaft sizes 5mm to 140mm

  • Temperature range -30°C to 120°C

  • Lengths up to 6m

  • Stainless steel and special designs available on request