China Standard Maintenance-Free Ratio 7: 1 750W Electric Motor Planetary Gear Reducer supplier

Product Description

Maintenance-Free Ratio 7:1 400W 750W Electric Motor Planetary Gear Reducer

Nickel chromium molybdenum alloy steel gear is manufactured with carburizing heat treatment for high abrasion resistance and impact toughness and by honing process to increase gear precision and low noise operation.Internal gear bore uses needle roller to obtain higher abrasion resistance and strength.

Product Description

Products fearures:
1.With bevel gear reversing mechanism,right angle steering output is realized;
2.Square flange output,standard size;
3.The input specification are complete and there are many choices;
4.Spur transmission ,single cantilever structurer,design simple,high cost performance;
5.Keyway can be opened in the force shaft;
6.stable operation,low noise;
7.Size range:60-120mm
8.Ratio range:3-100;
10.Support custom according to drawings or samples

Product Parameters

Specifications PVFN60 PVFN90 PVFN120
Technal Parameters
Max. Torque Nm 1.5times rated torque
Emergency Stop Torque Nm 2.5times rated torque
Max. Radial Load N 240 450 1240
Max. Axial Load N 220 430 1000
Torsional Rigidity Nm/arcmin 1.8 4.85 11
Max.Input Speed rpm 8000 6000 6000
Rated Input Speed rpm 4000 3500 3500
Noise dB ≤58 ≤60 ≤65
Average Life Time h 20000
Efficiency Of Full Load % L1≥95%       L2≥92%
Return Backlash P1 L1 arcmin ≤8 ≤8 ≤8
L2 arcmin ≤12 ≤12 ≤12
P2 L1 arcmin ≤16 ≤16 ≤16
L2 arcmin ≤20 ≤20 ≤20
Moment Of Inertia Table L1 3 Kg*cm2 0.46 1.73 12.78
4 Kg*cm2 0.46 1.73 12.78
5 Kg*cm2 0.46 1.73 12.78
7 Kg*cm2 0.41 1.42 11.38
10 Kg*cm2 0.41 1.42 11.38
L2 12 Kg*cm2 0.44 1.49 12.18
15 Kg*cm2 0.44 1.49 12.18
16 Kg*cm2 0.72 1.49 12.18
20 Kg*cm2 0.44 1.49 12.18
25 Kg*cm2 0.44 1.49 12.18
28 Kg*cm2 0.44 1.49 12.18
30 Kg*cm2 0.44 1.49 12.18
35 Kg*cm2 0.44 1.49 12.18
40 Kg*cm2 0.44 1.49 12.18
50 Kg*cm2 0.34 1.25 11.48
70 Kg*cm2 0.34 1.25 11.48
100 Kg*cm2 0.34 1.25 11.48
Technical Parameter Level Ratio   PVFN60 PVFN90 PVFN120
Rated Torque L1 3 Nm 27 96 161
4 Nm 40 122 210
5 Nm 40 122 210
7 Nm 34 95 170
10 Nm 16 56 86
L2 12 Nm 27 96 161
15 Nm 27 96 161
16 Nm 40 122 210
20 Nm 40 122 210
25 Nm 40 122 210
28 Nm 40 122 210
30 Nm 27 96 161
35 Nm 40 122 210
40 Nm 40 122 210
50 Nm 40 122 210
70 Nm 34 95 170
100 Nm 16 56 86
Degree Of Protection   IP65
Operation Temprature ºC  - 10ºC to -90ºC
Weight L1 kg 1.7 4.4 12
L2 kg 1.9 5 14

Company Profile

Packaging & Shipping

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Application: Industrial
Speed: Low Speed
Function: Driving
Casing Protection: Closed Type
Number of Poles: 2
Starting Mode: Direct on-line Starting
US$ 292/Piece
1 Piece(Min.Order)

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Customized Request

gear gearbox

How do gear reducers enhance the efficiency of conveyor systems and robotics?

Gear reducers play a significant role in improving the efficiency of both conveyor systems and robotics by optimizing speed, torque, and control. Here's how they contribute:

Conveyor Systems:

In conveyor systems, gear reducers enhance efficiency in the following ways:

  • Speed Control: Gear reducers allow precise control over the rotational speed of conveyor belts, ensuring that materials are transported at the desired speed for efficient production processes.
  • Torque Adjustment: By adjusting gear ratios, gear reducers provide the necessary torque to handle varying loads and prevent overloading, minimizing energy wastage.
  • Reverse Operation: Gear reducers enable smooth bidirectional movement of conveyor belts, facilitating tasks such as loading, unloading, and distribution without the need for additional components.
  • Synchronization: Gear reducers ensure synchronized movement of multiple conveyor belts in complex systems, optimizing material flow and minimizing jams or bottlenecks.


In robotics, gear reducers enhance efficiency through the following means:

  • Precision Movement: Gear reducers provide precise control over the movement of robot joints and arms, enabling accurate positioning and manipulation of objects.
  • Reduced Inertia: Gear reducers help reduce the inertia experienced by robotic components, allowing for quicker and more responsive movements while conserving energy.
  • Compact Design: Gear reducers offer a compact and lightweight solution for achieving various motion profiles in robotic systems, allowing for efficient use of space and resources.
  • Torque Amplification: By amplifying torque from the motor, gear reducers enable robots to handle heavier loads and perform tasks that require greater force, enhancing their overall capabilities.

By providing precise speed control, torque adjustment, and reliable motion transmission, gear reducers optimize the performance of conveyor systems and robotics, leading to improved efficiency, reduced energy consumption, and enhanced operational capabilities.

gear gearbox

What role do gear ratios play in optimizing the performance of gear reducers?

Gear ratios play a crucial role in optimizing the performance of gear reducers by determining the relationship between input and output speeds and torques. A gear ratio is the ratio of the number of teeth between two meshing gears, and it directly influences the mechanical advantage and efficiency of the gear reducer.

1. Speed and Torque Conversion: Gear ratios allow gear reducers to convert rotational speed and torque according to the needs of a specific application. By selecting appropriate gear ratios, gear reducers can either reduce speed while increasing torque (speed reduction) or increase speed while decreasing torque (speed increase).

2. Mechanical Advantage: Gear reducers leverage gear ratios to provide mechanical advantage. In speed reduction configurations, a higher gear ratio results in a greater mechanical advantage, allowing the output shaft to deliver higher torque at a lower speed. This is beneficial for applications requiring increased force or torque, such as heavy machinery or conveyor systems.

3. Efficiency: Optimal gear ratios contribute to higher efficiency in gear reducers. By distributing the load across multiple gear teeth, gear reducers with suitable gear ratios minimize stress and wear on individual gear teeth, leading to improved overall efficiency and prolonged lifespan.

4. Speed Matching: Gear ratios enable gear reducers to match the rotational speeds of input and output shafts. This is crucial in applications where precise speed synchronization is required, such as in conveyors, robotics, and manufacturing processes.

When selecting gear ratios for a gear reducer, it's important to consider the specific requirements of the application, including desired speed, torque, efficiency, and mechanical advantage. Properly chosen gear ratios enhance the overall performance and reliability of gear reducers in a wide range of industrial and mechanical systems.

gear gearbox

Can you explain the different types of gear reducers available in the market?

There are several types of gear reducers commonly used in industrial applications:

1. Spur Gear Reducers: These reducers have straight teeth and are cost-effective for applications requiring moderate torque and speed reduction. They are efficient but may produce more noise compared to other types.

2. Helical Gear Reducers: Helical gears have angled teeth, which provide smoother and quieter operation compared to spur gears. They offer higher torque capacities and are suitable for heavy-duty applications.

3. Bevel Gear Reducers: Bevel gears have conical shapes and intersect at an angle, allowing them to transmit power between non-parallel shafts. They are commonly used in applications where shafts intersect at 90 degrees.

4. Worm Gear Reducers: Worm gears consist of a worm (screw) and a mating gear (worm wheel). They offer high torque reduction and are used for applications requiring high ratios, although they can be less efficient.

5. Planetary Gear Reducers: These reducers use a system of planetary gears to achieve high torque output in a compact design. They provide excellent torque multiplication and are commonly used in robotics and automation.

6. Cycloidal Gear Reducers: Cycloidal drives use an eccentric cam to achieve speed reduction. They offer high shock load resistance and are suitable for applications with frequent starting and stopping.

7. Harmonic Drive Reducers: Harmonic drives use a flexible spline to achieve high gear reduction ratios. They provide high precision and are commonly used in applications requiring accurate positioning.

8. Hypoid Gear Reducers: Hypoid gears have helical teeth and non-intersecting shafts, making them suitable for applications with space limitations. They offer high torque and efficiency.

Each type of gear reducer has its own advantages and limitations, and the choice depends on factors such as torque requirements, speed ratios, noise levels, space constraints, and application-specific needs.

China Standard Maintenance-Free Ratio 7: 1 750W Electric Motor Planetary Gear Reducer   supplier China Standard Maintenance-Free Ratio 7: 1 750W Electric Motor Planetary Gear Reducer   supplier
editor by CX 2024-02-19