FAQ Archives

What is the number of stages of a planetary gearbox?

2025-04-12

Once you are exposed to the planetary gearbox industry, you will often come across the specialized name of stages.What is the number of stages in a planetary gearhead? Number of stages: the number of sets of planetary gears. Since one set of planetary gears cannot satisfy a large transmission ratio, sometimes 2 or 3 sets are needed to satisfy the user’s requirement of a large transmission ratio. Due to the increase in the number of planetary gears, the length of a 2 or 3 stage reducer will increase and the efficiency will decrease. Single-stage planetary gearhead: contains only one set of planetary gears. Ratio: Between 3:1 and 10:1.Two-stage planetary gearhead: Contains two sets of planetary gears. Ratios: between 10:1 and 100:1.Three-stage planetary gearheads: Contains three planetary gear sets. Ratios: 100:1 and above, for applications requiring very high torque output. In short, the number of stages of a planetary reducer refers to the number of sets of gears to meet the user’s larger ratios, and the larger the number of stages, the higher the ratios, theoretically speaking.

What is the gear ratio of a speed reducer？

2025-04-11

A speed reducer is generally used to reduce the speed of an electric motor. Internal combustion engine or other high-speed power through the reducer’s input shaft of the number of teeth on the gear meshing output shaft of the large gear to achieve the purpose of deceleration, reducer is a low-speed transmission equipment for high torque, this is a matter of common sense, do not talk about it, the ordinary speed reducer will have a few pairs of the same principle of gears to achieve the desired effect of deceleration, the size of the gear teeth ratio is the ratio of the transmission. Calculation of Gear Ratio For a pair of meshed gears, the gear ratio can be calculated using the formula: Or more generally For example, if a speed reducer’s input shaft rotates at 1000 RPM and the output shaft rotates at 100 RPM, the gear ratio would be: This means the input shaft rotates 10 times faster than the output shaft, while the output shaft provides 10 times the torque of the input shaft (assuming no energy loss). In short, this ratio is one of the important parameters of the reducer, usually we say 10 to 1, 20 to one, or direct example, 20 1 right angle speed reducer refers to the ratio of 20:1 right angle reducer.

What is a servo right-angle planetary gearbox

2025-04-10

Servo right-angle planetary reducer is a kind of reducer with high precision, compact structure and good sealing. It provides the advantages of high cost performance, wide application, economical and practical, long life, etc. In the application of servo control, it exerts a good servo rigidity effect, accurate positioning control, and has the characteristics of low to medium backlash, high efficiency, high input speed, high input torque, smooth running and low noise in the running platform. Servo right-angle planetary reducer planetary reducer its advantages Appearance and structural design of lightweight, the use of life-long free replacement of lubricating oil wherever installed, can be maintenance-free operation of the fully enclosed design, and has a degree of protection of IP65, so the working environment can also be used when the poor. Applicable industries In short, servo right-angle planetary gearbox is more compact structure, small return clearance, high precision, long service life, rated output torque can be made very large. But the price is slightly expensive.

What is the base knowledge of speed reducer for novices?

2025-03-19

For the newcomer who has just entered the reducer industry, there are some basic knowledge that must be known in advance. Especially for the specific use of a reducer and the need for some simple management and maintenance of its personnel, this is especially important. The following will introduce the basics of what you must know in the speed reducer industry in the shortest possible language. What is a speed reducer? A speed reducer is a power transmission mechanism that utilizes the speed converter of gears to decelerate the number of revolutions of a motor to the desired number of revolutions and to obtain a larger torque. What are the classifications of a speed reducer? There are many types of reducers. According to the type of transmission, they can be divided into gear reducers, worm reducers, planetary reducers, and reducers combined with each other; according to the number of stages of transmission, they can be divided into single-stage and multi-stage reducers; according to the shape of the gears, they can be divided into cylindrical reducers, bevel reducers, and conical-cylindrical reducers; and according to the form of the transmission arrangement, they can be divided into spreading, shunting, and coaxial types. What are the forms of gear lubrication? What are the forms of gear lubrication? The gears are lubricated by oil pool lubrication and circulating lubrication. How often should it be inspected? How often should it be inspected? Lubricating oil should be checked and replaced regularly. When a newly installed reducer is used for the first time, new oil must be replaced after 10-15 days of operation. After that, the quality of oil should be checked regularly (2-3 months), and should be replaced immediately when it is found to be not in compliance with the requirements, and the oil should be changed…

What is Speed Reducer?

2021-06-15

A speed reducer, also known as a gearbox or speed reducer, is a mechanical transmission device whose main function is to reduce the input speed and increase the output torque at the same time through a combination of a series of gears. Application Industry It is widely used in a variety of mechanical equipment, such as cranes, conveyor belts, mixers, wind turbines, etc., to adjust the speed and torque of motors or other power sources to suit different work requirements. Application Industry Usage Description Manufacturing Used in automated production lines to control the speed and torque of machinery. Mining Applied in conveyor systems, crushers, and mills to handle heavy loads efficiently. Agriculture Utilized in tractors, harvesters, and irrigation systems for power transmission. Construction Incorporated in cranes, hoists, and mixers to manage heavy lifting and mixing tasks. Energy Employed in wind turbines and hydroelectric plants to optimize energy conversion. Automotive Found in the drive trains of vehicles to reduce engine speed and increase torque. Food & Beverage Implemented in processing and packaging lines for precise speed control. Chemical Used in pumps and agitators to ensure safe and reliable operation under harsh conditions. Material Handling Integrated into conveyor belts and lifting equipment for efficient material movement. Marine Installed on ships for steering gears and deck machinery operations. Main components of the speed reducer Reducer Classification Before choosing a reducer, you need to find out In short, a speed reducer is an industrial part that can control the ratio of input and output speeds, and it is a very mature and also one of the more common mechanical parts.

Why some motors choose to use speed reducer？

2021-06-15

In some applications, the main purpose of using a gearhead is to change the output speed of the motor and increase the output torque. The following are some common reasons for choosing to use a gearhead: When choosing whether or not to use a speed reducer, the requirements of the specific application need to be considered, including factors such as the required speed, torque, accuracy, efficiency and cost. The selection of a speed reducer should be based on specific project requirements and performance parameters.

Precautions to be taken during the installation of a speed reducer

2021-06-15

The installation site of the speed reducer should be isolated from heat radiation. If it is installed in a very hot or cold place, there must be cooling and cooling measures and measures to heat the lubricant to ensure that it can be started normally. The concrete foundation or metal base plate for installing the speed reducer must have sufficient rigidity; the ground bolts are buried in sufficient depth, and the shims are used to level the level, and the thickness of the shims should not be less than 1mm; in order to ensure that the load is stable and not deformed during operation. Find the level, and power machine, work machine centering, should be carried out separately. Leveling accuracy requirements are generally 0.02 ~ 0.05mm / m, leveling in the body of the horizontal surface of the extended protruding surface or parallel to the horizontal surface of the processing surface. The higher the accuracy of centering the better, to consider the coupling used to compensate for the error in centering, the size of the tolerance, the general axis intersection angle error should not be greater than 10”, the translation error is not greater than 0.1mm. The rust inhibitor and corrosion inhibitor on the shaft extension must be cleaned before installing the coupling, sprocket and other parts on the shaft extension. Removal of rust inhibitors, corrosion inhibitors should not be sandpaper, files, scrapers and other easy to hurt the shaft with the surface of the tool. Installation of couplings, sprockets, etc. should not be hit by a heavy hammer, and should use the method of thermal expansion and contraction of the set. Shaft extension on the sprocket, pulley drive generated by the pressure of the shaft force is best to point to the installation of the foundation. If the connection…

Why is the planetary speed reducer the most sophisticated reducer?

2021-06-15

Industry insiders know that the planetary speed reducer is a high-precision gearbox, which can be said to be the most precise gearbox at this stage. But why can’t other reducer do the precision of planetary speed reducer? Why is the planetary reducer can do such a high degree of precision? Its main transmission structure is: planetary wheel, sun wheel, internal gear ring. Relative to other reducers, precision planetary reducers are characterized by high rigidity, high precision (single stage can be achieved within 1 minute), high transmission efficiency (single stage at 97%-98%), high torque/volume ratio, and lifelong maintenance-free. Most of them are installed on stepper motors and servo motors to reduce the speed, increase the torque and match the inertia. Planetary gearmotors are also known as planetary speed reducers and servo speed reducers. In the family of reducers, planetary reducers are widely used in servo motors, stepper motors, DC motors and other transmission systems because of their small size, high transmission efficiency, wide range of deceleration, high precision and many other advantages. Its role is to ensure that the premise of precision transmission, mainly used to reduce the speed to increase the torque and reduce the load/motor moment of inertia ratio.