No lubricants are needed and no noises or wear and tear produced because there is no sliding or friction.
”LEAVE IT FOR GOOD AFTER INSTALLATION” It lasts forever as long as is used correctly.
(3)LIGHT WEIGHT W/HIGH TORQUE：
By operations, it is available in a wide range; it can be made of aluminum alloy to reduce the weight.
(4)LARGE OFF-CENTER ALLOWED：
With large range of off-centering, it can be used flexibly in all kinds of transmission systems.
(5)SUITS HIGH-TEMPERATURE APPLICATIONS：
All-metal-pars construct makes it suitable for high temperatures.
(6)BACKLASH-FREE: WITH GOOD TORSIONAL RIGIDITY
Perfect for axial rotation that requires accuracy and machines with phase-control.
(7)CAN BE USED IN EVEN HIGHER SPEEDS：
It is highly balanced due to being backlash-free and light weight.
(8)EASY TO INSTALL：
Comprising small number of pasts and being compact, it can be installed/uninstalled quickly.
(9)ROBUST STRUCTURE AND HIGH SAFETY COEFFICIENT：
With load stress kept at low standard, it works with very high safety coefficient.
(10)AUTOMATIC PROTECTIVE DEVICE：
In case of damage, an automatic protective device rotates via pads.