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Helical Geared Motors / Gear Units
Introduction and Design features
Introduction
"Shanthi" NEW series of Helical Geared Motors and Gear Units take advantage of our many years of accumulated expertise and
experience in designing and manufacturing of transmission products.The end result is a series of speed reducing sizes offering
high load carrying capacities, high efficiency, quiet running and reliability. These sizes are compact and available in two, three,
four, five and six gear reduction stages.
Design of these gear units, made with gearing details following addendum modification based on the latest findings of gear
design with the help of latest computer software programmes, has been finalised keeping the most favourable ratio distribution
and the no. of teeth, module, helix angle, face width combination in order to achieve the optimum evenly distributed power
rating in various stages.
Range
Sizes
Rated output torque
Power
Reduction ratios
Design features
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Twelve sizes 02 to 13
140 Nm to 20,000 Nm
0.12 kW to 90 kW
3.426 to 294.93 in Single Casing
196.24 to 18137 in Tandem Casing
Efficiency 98% to 94% depending on no. of reduction stages
Gears
Casing
Shafts
Bearings
Seals
SHANTHI GEARS LIMITED
COIMBATORE - 641 005, INDIA
- Single helical gears are made out of high grade case hardening alloy steel.
- Designed to transmit high torque and power. Gear geometry & rating details confirm to relevant ISO/DIN Standards.
- Profile ground with the latest technique for tip relief & face crowning, ensuring smooth and silent running under all
types of abnormal conditions.
- The sturdy gear casings are made of high grade Cast-iron (except the smallest size 02, which is made of
Aluminium alloy die casting)
- Made in ' Mono Bloc
' design without any split or location joints in order to ensure maximum rigidity,
thus reducing noise & vibration.
- Created using latest 3D modelling technique to present and attractive aesthetic appearance.
- Provision is given at the top for viewing gear contacts of all stages, when required.
- Designed to suit various mounting positions.
- Made out of medium carbon steel, hardened & tempered.
- Tapped centre hole at shaft extension to facilitate retaining or removal of connection element.
- Plunge ground oil seal seating portion to prevent oil leakage.
- Anti-Friction bearings to ensure smooth operation and longer life and to withstand high overhung loads.
- Radial lip type oil seals for effective sealing of lubricant.
- Double lip oil seals can be provided for dusty atmosphere, if specified.
Electric Motor
- Squirrel cage TEFC induction motors conforming to latest IEC/IS standards.
- Suitable for 3 Phase AC supply.
- Class F Insulation.
- IP 55 Protection and use of lip type seal at driving end of shaft extension.
- Other special motors are supplied, on request.
Painting & Protection
- Shaft extension & other machined surfaces are coated with rust preventive compound.
- External surface, painted with synthetic enamel paint of hammer tone finish with Dark Grey Colour.
Special painting and protection methods, on request.
2 Date : 2008 / 07