Renold Gears' new e.PM right angle gear drives - a mid-range product
series offering single worm (PW), helical worm (PH)and
helical/bevel/helical (PB) configurations - have just one case design
between them (per size), regardless of gear configuration. Some 70% of
components, moreover, are common across the range, enabling reduced spare
parts holdings, quicker build times and thus more rapid response to
customer orders. And should a customer wish at a later stage to upgrade
his gear drive configuration from, say, single worm to helical worm, this
can be achieved simply by changing some internal components - he doesn't
have to buy a new drive.
The e.PM drive range covers ratios from 5:1 to 333:1 and has torque
capacities up to 12,000Nm via hollow bore or output shaft. An important
feature is the input adapter that allows any standard IEC or NEMA motor
to be fitted to the drive without further modification. Each variant is
available in six sizes, from 90mm to 200mm centres and the range covers
input powers from 0.55kW to 45kW. According to Renold, the PM series
performance is around 52% greater than that of existing gear drives,
which in many cases will allow a smaller unit to be selected for the same
application.