This NSK Air Motor for the Rotus system is assembled with micron precision between the vanes and the internal surface of the cylinder to achieve high torque. This high performance air motor with minimal power loss from load fluctuation has excellent performance in its grinding stability. Moreover, the NSK motor with minimal air consumption runs quietly and the energy-saving mechanism makes it possible to operate with a 1 hp (0.75KW) air compressor. • Twist-Free Joint Mechanism between the motor and the hose has solved the problem of hose twisting. • Speed Range: 3,000~30,000 rpm • NSK Catalog Number: RO10163 Included Equipment: • Hose (K-206): 6 ft. • Silencer (K-209) • Pin Wrench (K-233)