Helical wormgear unit available in six unit sizes up to 45kW capacity. Gear unit ratio range up to 300:1 and up to 22,000:1 if combined with other Renold helical gear products.

"Rapid Response" lead times on standard product - available from stock components
Variable mounting - design flexibility
High torque unit - compact design
Robust construction - suitable for heavy duty applications
Adaptability - ideal for hostile environments
Innovative design - allows modular extension of power ratio range
Motorised and speed reducer versions
Long life synthetic lubrication
Hollow output shaft design for direct shaft mounting
Single and double extension plug-in output shaft for many design options
Speed reducer version available for drives requiring free standing gear unit only
Modular design to allow flange mounting of other Renold gear units increasing ratio and torque capacity range

PM series - PH type - Product Features

Unique Holroyd tooth form for maximum torque capacity and optimum efficiency.
Sprag clutch backstop option to prevent drive reversal.
Heavy duty taper roller bearings fitted for maximum load capacity and long life.
One piece close grained cast iron gear case for strength and absorption of vibration for quiet running.
Accepts standard IEC and NEMA motors, B5 and B14 flanges.
Hardened and profile ground helical gears for quiet running and high efficiency.
Hollow output sleeve with electron beam welded bronze wormwheel rim for high security under shock load conditions.
The PM series, PH type unit has been designed and built to a modular form to allow the combination of other Renold products to extend the torque, ratio and speed range.

Parameter Name	Parameter Value
Type	worm helical
Shaft orientation	right angle
Torque (Nm)	10000 - 10000
Performance	for heavy loads
Applications	for shaft
Other characteristics	compact modular combined rugged
Rotational speed (rpm)	0.78 - 1500
Power (W)	550 - 30000