PSR SERIES pancake slip ring,As another form of though hole slip rings, pancake slip rings are designed for somewhere vertical space is limited while horizontal space is less restrictive. Special high vacuum sealing technology & precious metal brush ensure the high reliability transmitting and rotating performance of slip ring. With many advantages such as low torque ,low friction, low electrical noise and long life, pancake slip rings are mainly applied to transmit precise signal together with power, also could be combined with fluid media transmitting(such as hydraulic or pneumatic..)