Article List

• Let me introduce the working principle of the NGW-L82-20-55KW planetary gear reducer

  The NGW‑L82‑20‑55kW planetary gear reducer realizes speed reduction and torque increase through the rotation wheel system of 'Sun wheel → Planetary wheel → Internal ring gear': solar wheel input, internal ring gear fixation, and planet carrier output. It uses multiple teeth to simultaneously mesh to obtain high load-bearing and high efficiency. The dual-stage structure further expands the speed ratio and torque output. The basic composition of structure and working principle: sun gear (input), multiple planetary wheels, internal ring gear (fixed in the box), and planet carrier (output). Movement transmission: The sun gear drives the planet wheel to rotate both on and around the sun gear; the planet carrier converts the rotation of the planet wheel into output, achieving deceleration and increasing moment. Load balance: Use structures such as sun gear or planetary carrier floating to evenly distribute the loads of multiple planetary wheels to reduce vibration and noise. Transmission efficiency: The double-stage efficiency is about 94%-96%, and it can operate stably for a long time under rated operating conditions. Relationship between speed ratio and torque (principle) transmission ratio (common formula for single-stage, fixed ring gear, row

  September 02, 2025
• Maintenance points of WD120-23.5-1 Worm gear reducer

  WD120‑23.5‑1 is a single-stage worm gear reducer with a worm lower position, a center distance of 120 mm, and a nominal speed ratio of about 23.5. It is suitable for situations where large speed ratios, stable transmission and possible reverse self-locking; however, friction heating and centralization requirements are high, and strict lubrication and temperature rise management are required. Maintenance points (execute immediately) Installation and centering horizontally/firmly install, elastic coupling for input and toothed coupling for output, hammering and assembly and disassembly are strictly prohibited; the centering error of the whole machine ≤ the allowable compensation amount of the coupling. After installation, the manual wheel is flexible; no load is 1-3 hours, part load is intermittently operated and then full load, and the temperature rise and noise are monitored during the period. Lubrication and oil change for the first time, change the oil for 300–500 hours; then continuously run every 2000–3000 hours or 6 months, ≤10 hours/day every 4000 hours or 12 months; change the oil with the same brand and clean it and then add new oil. stop

  September 02, 2025
• NGW-S52-11-1 How to determine whether the oil temperature is normal during daily operation of the planetary gear reducer

  According to the three indicators of 'actual oil temperature + surface temperature + temperature rise rate': the actual oil temperature is ≤95 ℃, the surface temperature is ≤85 ℃, and the temperature rise is ≤ambient temperature + 40 K; if any exceeds the limit or rises rapidly within 15 minutes, stop the machine and check immediately. Determination standard (applicable to NGW-S52-11-1) Upper oil temperature limit: ≤95 ℃ (equilibrium oil temperature). Surface temperature: ≤85 ℃. Temperature rise rate: A warning will be made if it rises rapidly within 15 minutes. Ambient temperature: -40~40 ℃; preheat or use low condensed oil when <0 ℃. Daily judgment steps (can be performed directly) Measure the oil temperature: After shutdown for ≥10 minutes, insert the rod thermometer from the dipstick/sampling port for ≥2 minutes to read; during operation, the fixed temperature measurement point close to the oil tank shall prevail. Review surface: Use an infrared thermometer to measure the middle part of the housing or bearing seat, ≤85 ℃; when the oil temperature is ≥85 ℃ and the oil temperature is close to 95 ℃,

  September 01, 2025
• What are the key points for choosing a model of WPDS155-20-A-5.5KW worm gear reducer

  When selecting WPDS155-20-A-5.5kW, the closed-loop calibration of 'Load → Speed/Speed ​​Ratio → Heat Balance → Installation and Interface → Environment and Maintenance' should be implemented to ensure that the torque, temperature rise and adaptability meet the standards at the same time. Core key points Load and torque: clarify the continuous/peak torque and operating condition coefficient, ensure ≤ the sample allowable value, and avoid impact overload. Speed ​​to speed ratio: Input speed ≤1500 r/min; press n motor/n output to confirm or select i=20 nearby. Thermal balance and efficiency: WPDS155 i=20 Efficiency is about 60%-71%, and the temperature rise is calculated based on this; >40℃ or high load requires cooling/derating. Installation and shaft position: Confirm the A position details and space of 'Input shaft on + Motor flange' and check that the motor flange matches the shaft extension. Environment and lubrication: -40℃～+40℃; <0℃ preheat lubricating oil, >40

  September 01, 2025
• How to perform stress tests to detect performance of R107D160M4-11KW reducer seal

  Pressure testing is an important method to detect the performance of R107D160M4-11KW reducer seals. The following are the specific testing steps and related points: 1. Prepare to select test media before testing: gases such as compressed air and nitrogen can be used as test media, or liquids such as water or oil can be used as test media. Gas testing is easy to operate, while liquid testing can better simulate the media situation in actual work. Prepare test equipment: prepare pressure sources, such as air compressors or hydraulic pumps; pressure sensors, used to monitor pressure changes; and related valves, pipes and other connecting components to ensure that all equipment is in good working condition. Check the reducer: Make sure the reducer has been completely shut down and cooled, check the appearance of the reducer, ensure there is no obvious signs of damage or leakage, close all inlet and outlet valves of the reducer, and ensure that the medium does not leak to the external environment during the test. 2. Test connection to transfer the pressure source through the pipe and reducer

  August 29, 2025
• How to determine whether the P2KB11-112 high-power planetary reducer needs maintenance

  To determine whether the P2KB11-112 high-power planetary reducer needs maintenance, you can start from the following aspects: Appearance inspection: Observe whether there are obvious damage, cracks, deformations, etc. in the reducer case. If so, it may have failed and maintenance is required. At the same time, check whether there is any oil leakage at the joints of the box, seals, etc. The oil leakage may mean that the seal is aging or damaged, and it needs to be dealt with in a timely manner. Sound judgment: A normally operating reducer should make a smooth mechanical motion sound. If the reducer makes sharp, harsh, clicking, friction or other irregular abnormal sounds when running, it may be a sign of gear wear, bearing damage and other faults, and further inspection and maintenance are required. Vibration analysis: Use a vibration analyzer to regularly check the vibration status of the reducer and monitor its vibration magnitude and frequency information. If the vibration is exacerbated, it may indicate that there are gear wear, bearing damage, poor assembly or imbalance inside the reducer.

  August 29, 2025
• What are the effects of noise and vibration grade standards on the performance and life of FF157 hard-toothed gear reducer

  The noise and vibration grade standards have an important impact on the performance and life of the FF157 hard-toothed gear reducer. The specific details are as follows: Influence on performance Transmission accuracy: The noise and vibration grade exceed the standard, which usually means that there are major unstable factors during gear transmission. If there is error in gear meshing and the shaft system is not in a moderate manner, this will lead to a decrease in the transmission accuracy of the reducer, affecting the normal operation and working performance of the equipment. Transmission efficiency: Excessive vibration and noise will increase friction and energy loss between components such as gears, reducing the transmission efficiency of the reducer. For example, impact and vibration during gear meshing will cause some of the energy to be lost in the form of thermal energy, etc., rather than being effectively used to transmit power. Operating stability: Too much noise and vibration may affect the operating stability of the reducer, which may easily cause problems such as aggravation of vibration and loose components, and may even lead to equipment failures and affect production continuity. Impact on lifespan gear wear

  August 28, 2025
• How to maintain the FAF107-50.73-15KW hard-toothed gear reducer to ensure its noise and vibration levels meet the standards

  To ensure that the noise and vibration level of the FAF107-50.73-15KW hard-tooth gear reducer meets the standards, maintenance can be carried out from the following aspects: Regular inspection and monitoring of operation status inspection: During daily operation, you need to pay close attention to whether the reducer has abnormal noise, vibration or heating conditions. Once abnormalities are found, the machine should be shut down and checked in time. Check the connection parts: Check whether the connection bolts are tight, ensure the normal operation of the transmission device and prevent vibration and noise from increasing due to loosening of the bolts. Vibration monitoring: Use vibration analysis tools to monitor the vibration level of the reducer, such as vibration speed, acceleration and other parameters, and compare it with the standard values ​​to analyze whether there are potential faults. Temperature monitoring: Monitor the operating temperature of the reducer to ensure that it is within the normal operating temperature range. Excessive temperatures may be an early sign of a reducer failure and will affect noise and vibration levels. Lubrication management oil level inspection: Check the oil level of the reducer regularly.

  August 28, 2025
• What is the working principle of the WHC160-40-3 arc cylindrical worm gear reducer

  WHC160-40-3 The working principle of the circular cylindrical worm gear reducer is based on the meshing transmission of the worm gear and worm, which is as follows: Basic structure and transmission method: The reducer is mainly composed of worm and worm gear. The worm is usually an active member and the worm gear is a driven member. The worm is a shaft with spiral teeth, and its shaft cross-section is an arc-shaped gear, while the worm wheel is an arc-shaped gear with tooth conjugated to the worm. During operation, the worm is driven by a power source such as a motor to rotate at high speed, and the power is transmitted to the worm gear through the meshing of the spiral tooth surface and the worm gear tooth surface. Reduction mechanism: The reduction ratio determines the load-bearing capacity and efficiency improvement principle: The worm gear and worm gear are convex and concave meshing, and the majority of the meshing area have a large radius of curvature, which reduces the tooth surface stress, increases the tooth surface strength, and improves the load-bearing capacity. At the same time, the angle between the contact line and the circumferential velocity is mostly between 40° and 90°, which easily leads to liquid lubrication and friction coefficient between teeth surfaces.

  August 27, 2025
• What is the installation method of WHC180-60-III arc cylindrical worm gear reducer

  The installation method of the WHC180-60-III arc cylindrical worm gear and worm reducer is basically the same as the installation steps of the general worm gear and worm reducer. The details are as follows: Preparation before installation 1. Equipment inspection: Check whether the reducer packaging is intact, whether there are any damage, deformation or missing parts. Check the nameplate parameters and confirm whether the model, specifications, etc. meet the design requirements. 2. Cleaning work: Clean the installation surface and connecting parts of the reducer, remove oil, rust, debris, etc., and ensure that the installation surface is flat and smooth. 3. Tools and materials preparation: prepare wrench, screwdriver, level, dial meters and other tools, as well as suitable sealant, lubricant and other materials. Installation location selection 1. Suitable environment: Choose a dry, well-ventilated and less dusty installation environment to avoid the reducer being exposed to humid, corrosive gases or high temperature environments. 2. Easy to operate and maintain: The installation location should be convenient for operators to conduct daily inspections, maintenance and

  August 27, 2025