The best-known examples of friction-locking power transmission are the vehicle tire/road and wheel/rail systems. The circumferential force required for propulsion is transmitted by the ROTAFRIX® friction wheel to the rail by friction locking. The transmissible frictional force is a function of the wheel load and the coefficient of friction between the wheel and rail. The operation of a rubber rolling contact drive is significantly affected by the correct installation of the rolling contact gears.
ROTAFRIX® friction wheels consist of a rubber compound and a metal hub.
The properties of the rubber compound are matched to the special properties of friction wheels. ROTAFRIX® friction wheels are available in the following version (delivery terms and purchase quantities for custom versions are available on request):
- Polychloroprene rubber
- Hardness 80 Shore A
- Permissible friction lining temperature -30 °C to +70 °C
- Wear-resistant and largely oil-resistant
The metal hub is manufactured of commercially available 9 S 20 K free-machining steel. The hub has two center holes for subsequent machining. The metal hub is wider than the friction lining on one side to permit proper mounting of the rolling contact gear.