Product Description


Product Name

Best price of P series planetary gearbox for concrete mixer


gear reducer


Power Tranmission


China Top brand HRB,LYC,ZWZ or other brands requested, CHINAMFG


industry machinery


Product Description


1.P series planetary gear reducer is widely used in metallurgy , mining, lifting and transport , electricity, energy , building
materials, light industry, transportation and other industrial sectors.

2. P series planetary gear involute planetary gear transmission , within a reasonable use, external gear , power split .

3. The planetary gear modular design changes can be combined according to customer requirements.

4.Carburized gears are used to obtain high- hard wear-resistant surface , all the heat treatment after grinding gear teeth ,
reduce noise , improve the overall efficiency and service life.

5. Hight quality gear reducer , small transmission ratio range , high efficiency, smooth operation, low noise adaptability and
other characteristics .

1 . Input: concentric shaft input , the helical gear input , bevel – helical gear input, bevel gear input.

2 . Output: the splined inner, hollow shaft shrink disc, splined outer, CHINAMFG shaft flat key .

3.The planetary gear involute planetary gear transmission, within a reasonable use of external gear, power split. Therefore,light weight, small size, transmission ratio range, high efficiency, smooth operation, low noise, strong adaptability and other

4 . Box with ductile iron, greatly improving cabinet rigidity and shock resistance.

5 . Modular design , according to customer requirements to change the combination types .

6 . The installation forms : horizontal and vertical installation, torque arm mounting

7 . Combined with R series , K series to get greater ratio .

Company Profile


Packaging & Shipping


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Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Planetary
Step: Single-Step
Type: Gear Reducer
US$ 100000/Piece
1 Piece(Min.Order)

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worm gearbox

Self-Locking Properties in a Worm Gearbox

Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.

The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed , the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.

This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there's a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.

However, it's important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it's actively transmitting motion.

When considering the use of a worm gearbox for a specific application, it's crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.

worm gearbox

How to Calculate the Efficiency of a Worm Gearbox

Calculating the efficiency of a worm gearbox involves determining the ratio of output power to input power. Efficiency is a measure of how well the gearbox converts input power into useful output power without losses. Here's how to calculate it:

  • Step 1: Measure Input Power: Measure the input power (Pin) using a power meter or other suitable measuring equipment.
  • Step 2: Measure Output Power: Measure the output power (Pout) that the gearbox is delivering to the load.
  • Step 3: Calculate Efficiency: Calculate the efficiency (η) using the formula: Efficiency (η) = (Output Power / Input Power) * 100%

For example, if the input power is 1000 watts and the output power is 850 watts, the efficiency would be (850 / 1000) * 100% = 85%.

It's important to note that efficiencies can vary based on factors such as gear design, lubrication, wear, and load conditions. The calculated efficiency provides insight into how effectively the gearbox is converting power, but it's always a good practice to refer to manufacturer specifications for gearbox efficiency ratings.

worm gearbox

What is a Worm Gearbox and How Does It Work?

A worm gearbox, also known as a worm gear reducer, is a mechanical device used to transmit rotational motion and torque between non-parallel shafts. It consists of a worm screw and a worm wheel, both of which have helical teeth. The worm screw resembles a threaded cylinder, while the worm wheel is a gear with teeth that mesh with the worm screw.

The working principle of a worm gearbox involves the interaction between the worm screw and the worm wheel. When the worm screw is rotated, its helical teeth engage with the teeth of the worm wheel. As the worm screw rotates, it translates the rotational motion into a perpendicular motion, causing the worm wheel to rotate. This perpendicular motion allows the worm gearbox to achieve a high gear reduction ratio, making it suitable for applications that require significant speed reduction.

One of the key features of a worm gearbox is its ability to provide a high gear reduction ratio in a compact design. However, due to the sliding nature of the meshing teeth, worm gearboxes may exhibit higher friction and lower efficiency compared to other types of gearboxes. Therefore, they are often used in applications where efficiency is not the primary concern but where high torque and speed reduction are essential, such as conveyor systems, elevators, automotive steering systems, and certain industrial machinery.

China factory Planetary Transmission Gearbox Manual Worm Gear Reducer P Series Planetary Gearbox High Speed Small Planetary Gearbox   with Hot selling		China factory Planetary Transmission Gearbox Manual Worm Gear Reducer P Series Planetary Gearbox High Speed Small Planetary Gearbox   with Hot selling
editor by CX 2024-03-11