GPRO Drives is an ISO 9001:2015 Certified Company, accredited by TÜV Nord, ensuring consistent quality and customer satisfaction.
Inward, in-process, and outward inspections are carefully mapped to ensure reliable product quality through trained personnel and advanced processes.
All important machining processes are carried out in-house, maintaining precision, quality control, and production consistency.
Regular quality audits are conducted by trained in-house staff to maintain high manufacturing standards.
Complete component traceability is maintained throughout the manufacturing process, ensuring transparency and reliability.
Every gearbox undergoes a 100% final inspection and testing before dispatch to ensure dependable industrial performance.
Options: Foot, Flange & Agitator.
Input: Hollow Shaft & Solid Shaft.
B3 – Horizontal
V5 – Vertical Downward
V6 – Vertical Upward
Efficiency: 96% per stage.
Ratio: 3.63:1 onwards Torque: 12 kg·m – 60,000 kg·m
Input Power: 0.12–375 kW
Maximum Speed: 1440 RPM
Splash-type air cooling with ISO VG 220/320 synthetic oil.
Standards: AGMA, ISO & IS.
We Give Best Business Solution — we cater to the needs of our clients by manufacturing, exporting and supplying various equipment such as Planetary Gearboxes, Hydraulic Winch, Screw Jack, Bevel Drives, Worm Drives, and more.
| Mounting | Foot / Flange / Agitator |
| Input | Hollow to suit Electric / Hydraulic Motor; Solid shaft (for mounting coupling, pulley, sprocket etc.) |
| Orientation | B3 (Horizontal), V5 (Vertically Downward), V6 (Vertically Upward) |
| Efficiency | 96% per stage |
| Ambient temp. | 40 °C |
| Allowable temperature rise | 45°C above ambient temp. |
| Ratio range | From 3.63:1 up to customer requirement |
| Output torque range | From 12 kg·m to 60,000 kg·m |
| Input power | From 0.16 Hp / 0.12 kW to 500 Hp / 375 kW |
| Max. input speed | 1440 rpm (for higher/lower speed, consult GPRO) |
| Paint shade | STD: RAL Blue · SPL: special color against specific customer requirement |
| Method of cooling | STD: splash-type lubrication, air-cooled · SPL: forced cooling against specific customer requirement |
| Lubrication | Model 501 gearbox filled with grease; ISO VG 220/320 synthetic base oil. STD: gearbox supplied without oil · SPL: supplied with oil against specific customer requirement |
| Standard accessories | For orientation V5 & V6, oil cup assembly is provided |
| Applicable standards | AGMA, ISO, IS |
| Advantages | High efficiency, inline, high torque density, high torque-to-weight ratio |
| Disadvantage | Noise level in some cases up to 70 dB |
| Application | Material handling, Chemical, Sugar, Cement, Paper, Rubber, Marine, Food Industry, Automation, Oil & Gas, Textile and much more |
A planetary gearbox works through a sun gear at the center, planet gears rotating around it, and an outer ring gear — this arrangement shares load across multiple gear contact points, giving high torque capacity in a compact size.
A planetary gearbox uses a concentric, multi-gear design for higher torque density and a smaller footprint, while a helical gearbox uses parallel-shaft gears, generally offering a simpler design at the cost of a larger size for the same torque rating.
Well-designed planetary gearboxes typically achieve high mechanical efficiency per stage (often 95-98%), though multi-stage units will have combined efficiency slightly lower depending on the number of reduction stages.
GPRO’s planetary gearboxes are available across single and multi-stage configurations to achieve a wide range of reduction ratios — share your input/output speed requirements for an exact ratio recommendation.
Planetary gearboxes are ideal for applications needing high torque in limited space — such as material handling drives, mining equipment, and rotary systems where compact, high-load gear reducers are required.
Planetary gearboxes can carry a higher upfront cost than simpler parallel-shaft designs due to their precision components, but often offer better torque-to-size and torque-to-weight value for compact, high-load applications.