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Helical Reduction Gear Boxes

High-Efficiency, Heavy-Duty Power Transmission Solutions: Helical Reduction Gearboxes

A helical reduction gearbox is a machine component that slows down motor speed and increases lifting power (torque) using specially designed gears with angled teeth. These are reliable and reliable and efficient mechanical power transmission systems that most industries involved in heavy machinery, conveyors, and mixers use. Reva Industries is one of the top Helical Reduction Gearboxes manufacturer and supplier in India.

Reva’s helical gearbox body is made of cast iron (C.I.), designed for heavy-duty use, and is precision-machined using CNC machines for accuracy and durability. In fact, the helical parallel shaft gear can handle large sizes (up to 1000 mm center distance) and uses 2 to 4 stages of gear reduction to achieve the required speed reduction and torque.

Get yourself helical reduction gears from Reva Industries that are built to be strong, long-lasting, and run smoothly with minimal noise and vibration. Compared to conventional spur gear systems, helical gearboxes provide more stable and efficient performance in industrial environments.


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Benefits of Choosing Reva Helical Reduction Gear Boxes
  • Designed in KISSsoft and verified per ISO 6336: FoS ≥ 1.5 in tooth-root strength (S_F), with pitting safety (S_H) verified to ISO 6336 limits.
  • Engineered specifically for crane duty: As a crane and hoist OEM, Reva Industries Pvt. Ltd. sizes the gearbox with crane-duty service factor (start/stop frequency, shock load, sustained low-speed torque) already applied, not a generic industrial rating.
  • Case-hardened, profile-ground gears in alloy steel (SAE 8620 / 20MnCr5 / EN-353 / 15Ni2Cr1Mo15): The same grades specified by leading European gearbox makers.
  • Noise level less than 85 dB.
  • High efficiency: 99% (single-stage), 98% (two-stage), 97% (three-stage), 96% (four-stage). achieved through profile grinding of the input pinion.
  • Mounting dimensions interchangeable with Elecon / Fenner sizes: Direct drop-in replacement for retrofits, spares and gearbox upgrades.
  • Field-tested in heavy-duty crane operations since 1997, ensuring dependable and durable performance.
Product Catalogue

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Technical Specifications (Typical Range)

Power

Up to ~2000 kW (standard catalogue range; larger frames built to order)

Output torque

Up to 50,000 kgfm (~490 kNm) on the low-speed shaft

Gear Ratio

1.6 to 625 (single, two, three or four stages, R20 series)

Centre distance

70 mm to 1000 mm (R10 / R20 / R40 modular series)

Mounting

Horizontal/Vertical

Housing

Cast iron/fabricated steel

Lubrication

Splash/forced lubrication

Testimonials

Great Performance

Two nos capacity 1.5 Ton Jib Cranes Mtrs having span of 5.0 Mtrs. and Lift of 7.0 Mtrs. has been in operation and performance is good.

GRAND PRIX ENGINEERING (P) LTD
Faridabad
Good Experience

The EOT Crane having 5 Ton SWL Capacity has been Installed and Commissioned by Reva Industries Ltd. The work has been carried out perfectly..

STORE OFFICER
Cat Indore
Reliable Performance Since 2012

The crane has been in operation since 27 February 2012, and its performance has been consistently reliable and highly satisfactory over the years.

SGL GARBON INDIA PVT LTD
Faridabad
Outstanding Performance

The crane was load tested and successfully handed over on 16th January 2012 for the erection of CW pumps. Since then, it has delivered consistently excellent performance, operating reliably and exceeding expectations in day-to-day use.

FLOWMORE LIMITED
Faridabad
Consistent Reliability

From day one, the crane has delivered dependable, smooth operation with impressive consistency. Its performance has remained strong over time, supporting critical tasks efficiently and without issues.

RELAINCE INFRASTRUCTURE LIMITED
Faridabad
Satisfactory.

The crane has been in operation since one year and 3 months performance of the crane has been found satisfactory.

BRIJESH KUMAR MISHRA
Power Projects, Kirloskar Brothers Limited
Good Performance

The crane has been in operation since 10 Jan, 2011 and performance of the crane has been satisfactory.

MR. SUBHASH KHENDALWAL
U.S.K Exports Managing Director
Satisfactory.

The crane has been in operation since 18th Feb, 2011 and performance of the crane has been found to be satisfactory.

MR. V.V. NAMJOSHI
M/S MAITHON POWER LIMITED Head Construction
ABIR INFRASTRUCTURE PVT. LTD.

The crane has been in operation since 14th April, 2014 and performance of the crane has been satisfactory.

ABIR INFRASTRUCTURE PVT. LTD.
Faridabad
Satisfactory.

The Crane was load tested and handed over for plant operation on 9th october 2011. The crane has been in operation and performation is Satisfactory.

VINEET ARORA
Flowmore Limited Sr. Manages - Projects
Quality Result

Operating reliably since October 2008, the crane has demonstrated exceptional durability and consistent, high-quality performance, making it a dependable asset for long-term operations.

EVEREST POWER PVT. LTD.
Faridabad
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