Types RAZ & RIZTransmission Equipment » Sprag Clutches » Types RAZ & RIZ
Type RAZ clutches have sprag clutch cage connected to outer race to enable high speed overrunning of the outer race. This series mainly used for overrun applications such as starter drives and barring motors. Type RIZ clutches have sprag clutch cage flexibly connected to the inner race to enable high speed operation of the inner race. Whilst also suitable for overrun applications, more often this series is used as backstop.
Both RAZ & RIZ clutches are available with elastomeric coupling as used with AGF series, with RIZ being preferable as these allow whole unit to be stationary during overrun.