The design of the PW series precision planetary reducer needs to focus on the reduction ratio, output torque, input speed, installation form and accuracy requirements, and combine the load conditions and spatial layout for system matching. 1. Determine the core performance parameter ‌reduction ratio (i)‌: calculated based on the drive motor speed and the required output speed. The PW series supports one to four levels of transmission, with a wide range of reduction ratios, such as 3~10 for the first level, 9~64 for the second level, and 60~512 for the third level. ‌Output torque‌: The rated output torque of the PW series is as high as ‌27500Nm‌ (such as the PW420 model). It is necessary to ensure that the rated torque T2N of the Selection number covers the maximum operating torque of the equipment and leaves a safety margin. ‌Input speed‌: Different models have different maximum input speeds. For example, PW215 can reach 3000rpm, while PW360/PW420 is 2000rpm, which needs to match the maximum speed of the motor. 2. Check the mechanical bearing capacity Read More

1. Check the WP sample table according to torque and speed, and determine the WP model. Model format: WPA/WPO/WPDA/WPDO + frame number (center distance) + speed ratio frame number (center distance): 40, 50, 60, 70, 80, 100, 120, 135, 155, 175, 200, 250 Example: WPA100-30 → Horizontal type, center distance 100mm, speed ratio 30 table lookup logic: Find the corresponding speed segment according to the output speed n₂; select the smallest frame number with rated output torque ≥ T₂ according to the calculated T₂; under the same torque, the higher the speed, the frame number should be appropriately enlarged. 2. Key verification (avoiding heating/overloading) thermal power verification (must be checked for continuous operation) motor input power ≤ reducer thermal power (sample table), otherwise it will overheat and get stuck in long-term operation. Input speed limit WP Worm speed ≤ 15 Read More

The service life of the output shaft of the XWE128-391-22KW cycloidal pinwheel reducer is mainly related to the following factors: 1. Material quality and heat treatment process: As the core transmission component, the output shaft is usually made of high carbon chromium steel or bearing steel and is quenched (HRC58~62) to obtain high strength and wear resistance. Material properties and heat treatment quality directly affect fatigue and wear resistance. 2. Lubrication conditions‌: Good lubrication is the key to extending service life. It is recommended to use 70# or 90# extreme pressure gear oil to ensure a moderate oil level to avoid excessive friction heat due to lack of oil or poor lubrication, which may cause gluing, wear or annealing failure. 3. Stress conditions: The output shaft cannot bear excessive axial force and radial force. If there is a large external force in the working condition, a support or connecting device must be installed, otherwise it may easily cause bearing damage, pin hole loosening and other faults. 4. Operating environment and maintenance: at high temperatures Read More

During the trial operation phase of the WHC280 worm reducer, common errors are mainly concentrated in the key links of installation, lubrication, debugging and load operation. Ignoring the details of these links can easily lead to early damage to the equipment or substandard performance. 1. Installation and foundation errors The foundation is uneven and unstable: Install the reducer on an unleveled base, or use inappropriate materials such as wooden boards and rubber pads for leveling. This will cause uneven force on the box, deformation, and affect the normal meshing of the internal gears. Inaccurate alignment of the shaft system: When the input shaft is connected to the motor and the output shaft is connected to the working machine, accurate alignment is not performed. Excessive misalignment will generate additional radial force, causing premature damage to bearings and oil seals, and causing abnormal vibration. Improper installation method: 'C' of WHC type reducer means that the worm is on the side of the worm gear. If the installation position does not meet the design requirements, the lubrication effect may be affected, resulting in poor lubrication. 2. Lubrication and sealing Incorrect lubrication Read More

For the spline shaft of the ZLY280-16-1 hard tooth surface gear reducer, its common faults are mainly concentrated in wear, fracture and deformation. 1. Spline tooth surface wear This is one of the most common failure modes of spline shafts. The main manifestation of wear is: the sides of the spline teeth are worn thin, causing the gap between the spline shaft and the matching gear or sleeve to become larger. Causes of wear: 1. Poor lubrication: insufficient lubricating oil, substandard oil or impurities in the oil, resulting in dry friction or abrasive wear between the tooth surfaces. 2. Load problem: The equipment has been subjected to large vibration and impact loads for a long time, which aggravates the friction between the tooth surfaces. 3. Assembly problem: The backlash of the spline fit is too large, which will cause impact when transmitting torque and accelerate wear. 2. Spline fracture Fracture is a serious failure and is usually divided into two types: overload fracture and fatigue fracture. 1. Overload fracture: The main manifestation of overload fracture is: it usually occurs when the equipment is suddenly stuck or seriously overloaded. Read More

Noise is only one of the reference factors and is by no means the only criterion for selecting the reducer series. 1. Why can’t you just look at the noise when selecting a reducer? The number of stages (single-stage, two-stage, three-stage, multi-stage) determines the reduction ratio range, output torque, volume and shape, transmission efficiency, load-bearing capacity, installation space, and cost. Noise is just an incidental feature. 2. The core key factors in selecting the number of reducer stages 1. The required total reduction ratio is small in the single-stage reduction ratio range, and only two or three stages can achieve a large speed ratio; if the speed ratio cannot be reached, it cannot be used no matter how quiet it is. 2. The more output torque and load-carrying levels, the more transmission levels, which can amplify greater torque. Heavy-load conditions must match the corresponding levels. 3. The more transmission efficiency and energy consumption stages, the greater the meshing loss and the lower the efficiency. For working conditions with high energy saving requirements, give priority to fewer stages. 4. The installation space and Dimensions multi-stage reducer are larger and longer; the space is limited and only a small number of stages or a special structure can be selected. 5. Working speed Read More