THE MAGNETIC IMPACT OF SG TRANSMISSION ELECTROMAGNETIC PARTICLE CLUTCH & BRAKE FEATURES / TYPICAL INSTALLATION RELIABLE & STABLE TORQUE The 51 -PC/51 -PB series clutches and brakes utilise premium magnetic particles and the optimum magnetic circuit. The relationship between torque and exciting current is directly proportional, offering constant torque, independent of slip speed. HIGH CYCLE CAPABILITY & LONG LIFE The use of high wear particles assures long operational life in high cycle applications. DESIGNED FOR CONTINUOUS SLIP The 51-PC/51-PB series clutches and brakes have been designed to maintain high performance in continuous slip applications through maximum and continuous heat dissipation. "1. If there are two numbers, the first shows number shows a condition of 1000 rpm. "2. The cooling condition is shown as listed to