Uniquely contoured, rigid, precise, monobloc, cast iron Body, Base and Flange ensure extreme robustness
2 or 3 reduction stages inside the same body, in order to have a wider and more reliable range of ratios
A modular design with detachable output flange and integral feet permits the easy and fast conversion between flange or foot mounting
IEC flange and hollow shaft. Choice of hollow input flanges permits direct mounting of any standard motor
Unique construction of Ston makes it possible to mount any size in any position. This flexibility is achieved by:
+ ZZ autolubricating bearings on input and output shaft
5 interchangeable plugs, including one breather plug and a level plug. Please note that the vent plug also allows you to reduce the internal pressure on seals, and thus increases the efficiency of the gearbox
+ mechanical parts locked in their positions by snap rings.This also ensures better absorbtion of axial thrust and prolongs the life of bearings
Use of high strength steels and case hardening to 58 ±2 HRC reduce the wear rate in wheels. All wheels are profile ground to Din 3962 class 6 accuracy for low noise and high efficiency
Shafts are made from 42CrMo4 steel and tempered to reach a hardness of 23-35 HRC, thus increasing their capacity to withstand shearing stresses
If the mechanical robustness and the service factor of an helical gearbox are mainly influenced by the centres distance of the last stage, Ston confirms to be very robust (see "X2" at page 16)
Single stages ratios between 2 and 6, together with proper gears sizes, result mathematically in higher teeth number and size (module) of each wheel and a better fractioned load among the reduction stages. That influences both durabilty and torque transmission capability
Dual bearing support on the input shaft assures precise alignment of the first stage gears and reduces vibrations and consequent gear wear
Abounding bearings size




home | gearbox - parallel shaft gearbox STON

STON is the new parallel shaft and shaft mounted gearbox. In cast-iron monolithic body. 3 sizes, with a capacity of up to 700Nm. MADE IN ITALY

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Technical catalogue

General catalogue

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