Mclennan P5 series ovoid gearheads provide more benefits after design enhancements

The P5’s final output gear arrangement maintains an identical tooth form and diameter regardless of the reduction ratio - allowing final gear and shaft assemblies to be held in stock as ‘blanks’ which are machined to suit standard output shaft requirements and provide the means for a fast turnaround for customised shafts. Mclennan are thus able to efficiently stock a wider range of standard gear ratios for quick delivery at very competitive costs, as well as provide a rapid turnaround with economical pricing for small-quantity customised output shafts.

A noteworthy change is that the housing material is now produced in Zytel FR7025, a flame retardant plastic, for improved compliance for hazardous environments.

Through Mclennan’s extensive distribution network with major motor manufacturers including Portescap, Premotec and Tamagawa, a wide range of permanent magnet stepper motors, ac synchronous and instrument dc servo motors are available to complement the P5 for scientific, medical and industrial instrument drives, valve actuators, and many other specialised precision control applications.

The standard P5 range covers ratios from 10:1 to 15000:1 in 18 models with an output torque rating of 0.8 Nm. The flexibility and modularity built into the range allows customised versions to include strengthened bearings for increased loading and higher speeds, improved lubrication for extended life, alternative gear materials for noise free operation and clutch/freewheels for torque limiting and anti-backdriving.

The adaptability of the P5 is demonstrated with a standard positional servodrive version comprising of an ironless rotor servo motor drive and a dual output shaft with a potentiometer fitted for up to 3600 degrees of angular position feedback. The cost effective and durable P5 series has also proved an excellent power transmission component as a part of complete mechatronic assemblies for specialist positioning applications across all areas of industry and research.