Shaft Mounted Gear Boxes for Sugar Plant Equipments

INNOTRANS SPH Series Gear Drives are exclusively developed for the Crystallisers, Strike Receivers & allied equipment in Sugar Plants and Sugar Refineries.

These Gear Drives have a unique configuration of a Helical gear pair and multi-stage Planetary gears, all housed in a single housing to form a compact low-speed & high-torque gear transmission. A multi-stage Planetary gear train is directly flanged onto the housing that accommodates helical gear pair. Electric Motor is flanged onto the input end of the multi-stage Planetary gear train.

Shaft mounted configuration of these Gear Drives eliminates bulky foundations, couplings, base frame, etc., normally required for general purpose Gear boxes. Through & through hollow output shaft of this Gear Drive slides over the driven shaft & gets axially locked to it by a gib head taper key.

A detachable manual handle facilitates easy manual rotation of the driven shaft by manually turning non-driving end shaft of the motor. Such manual operation is sometimes called for at the time of power changeovers and also during off-season maintenance work on the rotary elements of the driven equipment.

A Torque Arrester supplied along with the Gear Drive is required to be bolted onto the machine structure for taking reaction force of the Drive.

  • High Efficiency transmission
  • Simplified Installation - Direct mounting onto the driven shaft eliminating coupling, shrink disc, mounting base structure, etc.,
  • Use of Rolling Bearings results in extended service life.
  • Common Oil Sump adequately lubricates all rotary elements, ease of oil filling & oil draining.
  • Double-lip Oil Seals on output shaft eliminate ingress of water, fine dust, etc. Oil Seal on input shaft prevents oil contact with the Motor.
  • Easy manual operation through a detachable handle at non-driving end of the Motor’s shaft.
  • Higher Thermal Rating as compared to standard Planetary Gear Boxes – no de-rating on thermal capacity is needed upto 60 deg. C ambient temperature.

SPH SERIES GEAR DRIVES - an ideal replacement for conventional Worm Drives. SPH Series Gear Drives are ideal replacement

SPH Series Gear Drives are ideal replacement for the conventional Worm gear drive systems generally employed for Crystallisers and similar low-speed high-torque equipment in Sugar Plants & Sugar Refineries.

The conventional Worm gear drive system comprises of a foot mounted motor driving a single stage Worm gear box through a flexible coupling, both mounted onto a common bed plate. This single stage Worm gear box is further coupled to the open type Worm shaft which in turn drives open type Worm wheel mounted onto the driven shaft as shown below.

Conventional Worm gear drive system suffers from the following major disadvantages.

  • High power consumption due to lower efficiency, the combined efficiency can be as low as 25%.
  • replacement of worm gearings due to highFrequent sliding between shaft mounted worm wheel & structure mounted worm shaft.
  • High lubrication consumption, frequent topping up of oil due to oil spillages.
  • replacement of bearings due to Couplings’Frequent misalignment & contaminated lubricant.
  • cost of routine maintenance & house keeping Higher.
  • Cumbersome manual operation during power off conditions.
  • thrust loads on the driven shaft severely affectingHigher life of support bearings gland packing.

Replace conventional Worm gear drive system with INNOTRANS SPH Series Gear Drives & get these benefits.

  • saving of 50-70%Power
  • Lubrication consumption down by 70-80%
  • maintenance free periods, over 80%Longer reduction in routine maintenance costs
  • surroundings Clean
  • manual operation during power-offEase of conditions
  • life of the driven shafts’ support bearingsLonger & gland packing.
Rated (Peak) Nm
Max. Dia x Length
Input Power / Nominal Output speed


13,400 (26,800)

110 x 185mm L
3.7kW/3.7RPM 2.2kW/2RPM
1.5kW/1.5RPM 1.1kW/1RPM
0.75kW/0.75RPM 0.55kW/0.5RPM


17,400 (34,800)

130 x 194mm L
3.7kW/2.5RPM 2.2kW/1.50RPM
1.5kW/1RPM 1.1kW/0.75 RPM
0.75kW/0.5RPM 0.55kW/0.37RPM


24,700 (49,400)

150 x 230mm L
5.5kW/2.5RPM 3.7kW/1.7RPM
2.2kW/1RPM 1.5kW/0.70RPM
1.1kW/0.5RPM 0.75kW/0.37RPM


41,500 (83,000)

160 x 250mm L
7.5kW/2RPM 5.5kW/1.5RPM
3.7kW/1RPM 2.2kW/0.60RPM
1.5kW/0.4RPM 1.1kW/0.37RPM


63,100 (126,200)

185 x 300mm L
11kW/2RPM 7.5kW/1.37RPM
5.5kW/1RPM 3.7kW/0.70RPM
2.2kW/0.4RPM 1.5kW/0.3RPM


87,600 (175,200)

210 x 330mm L
7.5kW/1RPM 5.5kW/0.75RPM
3.7kW/0.5RPM 2.2kW/0.3RPM


138,300 (276,300)

230 x 390mm L
11kW/1RPM 7.5kW/0.70RPM
5.5kW/0.5RPM 3.7kW/0.3RPM


186,500 (373,000)

240 x 440mm L
15kW/1RPM 7.5kW/0.50RPM
5.5kW/0.33RPM 3.7kW/0.25RPM


260,800 (521,000)

250 x 490mm L
22kW/1RPM 15kW/0.70RPM
11kW/0.5RPM 7.5kW/0.3RPM
  • Motor
  • Gear Reducer
  • Torque Arrester
  • Oil Filling With Breather
  • Oil Drain Plug
  • Oil Level Indicator
  • Taper Key
  • Manual Handle
  • Inspection Cover