CPE, CPU ModelThey are pin-bushing couplings using aluminum alloy for the body material. Each component is a rigid body and has a high rigidity. By a combination of high-precision pin and dry metal, backlash is very slight. Shaft reaction force due to mounting misalignment is extremely small by a universal-type coupling, and there is a damping effect by frictional sliding as well. Mounting is easy by the clamp method. The CPU model with alumite-treated surface and maximum angular misalignment 4deg. and the inexpensive CPE model with maximum angular misalignment 1deg. are available.