Article List

• Some methods to improve the versatility of the spline shaft of the ZLYJ146 hard-tooth gear reducer

  ZLYJ146 Hard-tooth surface gear reducer is a gear transmission device with a thrust package designed for plastic and rubber screw extruders. There are mainly methods to improve the versatility of its spline shafts: adopt standard spline specifications: follow international or domestic spline standards, such as DIN5480, etc., to ensure that the modulus, pressure angle, number of teeth and other parameters of the splines meet the standard requirements, so that the spline shafts produced by different manufacturers and the spline sleeves that cooperate with them are interchangeable. Optimized design structure: You can adopt split spline output structure, such as 'planetarrier + inner and outer spline sleeves' to facilitate later replacement and maintenance, improve the versatility and interchangeability of parts, reduce spare parts, and reduce inventory. At the same time, the radial positioning surface of the inner and outer spline sleeves and the planet carrier adopt a transitional coordination to center and ensure coaxiality. There are top wire holes left on the inner and outer spline sleeves for easy replacement. Improve processing accuracy: adopt high precision

  August 21, 2025
• What are the specific steps for adjusting the input shaft and output shaft center of the ZL600-31.5-2 reducer

  Adjusting the axis core of the input shaft and output shaft of the ZL600-31.5-2 reducer is mainly to ensure the coaxiality of the connected drive shaft and load shaft. The specific steps are as follows: 1. Prepare the work tool preparation: prepare the coaxiality measuring instrument, laser centering instrument, dial gauge, feelter, gasket, wrench and other tools. Check components: Check the reducer and related connecting components (such as motor shaft, coupling, load shaft, etc.) for damage, wear or deformation, etc. to ensure that all components are normal. Preliminary centering: Before installing the reducer, first conduct preliminary centering of the connecting parts, determine their approximate position, and lay the foundation for subsequent precise adjustments. 2. Install the reducer and measure the deviation Install the reducer: Fix the reducer to the installation base or frame according to the design requirements to ensure that it is installed firmly. Measure coaxiality: Use a laser centering meter to detect the coaxiality between the input shaft and the motor shaft, the output shaft and the load end, or use a dial gauge and a feeler gauge to measure it.

  August 21, 2025
• What tools can help set the load and speed of the KF47-NA45-1.5-4P-M3-A-180 reducer

  Here are some tools that can help set the load and speed of the KF47-NA45-1.5-4P-M3-A-180 reducer: Reducer Selection software: SEW-EURODRIVE Special Selection software provided by reducer manufacturers, input parameters such as reducer model, motor power, reduction ratio, load type, etc., and the software can calculate the appropriate load and speed range. Also, like Gearbox Gear reducer design system, such as general reducer design and gear parameter calculation software, can also assist in determining the load and rotation speed of the reducer based on the input relevant parameters. Torque calculator: For example, 'Motor Reducer Torque Calculator' tools are usually found in Excel tables or other software. Input parameters such as motor power, speed, reducer speed ratio, etc. can calculate the output torque after deceleration, thereby helping to determine the load size, and at the same time

  August 20, 2025
• What are the differences in the protection measures of different models of worm gear reducers when the working environment temperature is too high or too low

  There are some differences in the protection measures of different models of worm gear reducers when the working environment temperature is too high or too low. The following are some common models: CW series worm gear reducers: The working environment temperature is -40℃~40℃. When the temperature is lower than 0℃, the lubricating oil must be heated above 0℃ before starting; when the temperature is higher than 40℃, cooling measures must be taken. NMRV series worm gear reducer: When the use environment is lower than -30℃ or higher than 60℃, special oil seals must be replaced. The motor that matches the reducer must be suitable for operating in a low-temperature environment, and the motor power must meet the torque requirements during low-temperature starting. In low temperature environments, the lubricant viscosity is high before the equipment is put into use, so the machine should be left to test and then loaded. SCW series worm gear reducer: In low temperature environment, lubricating oil suitable for low temperature operation should be selected, and the speed reducer can be preheated.

  August 20, 2025
• How to reasonably select the lubricating oil of WPDA135-60 worm gear reducer according to the working environment temperature

  Reasonably select the lubricant of the WPDA135-60 worm gear reducer according to the working environment temperature. We need to consider factors such as viscosity and lubricant type. The following is a specific selection method: Consider the high-temperature environment of viscosity grade: When the ambient temperature is above 30℃, lubricant with high viscosity, high viscosity index and good oxidation resistance should be selected, such as oils with ISO VG460 and above viscosity grades. When the temperature of a high viscosity index lubricating oil increases, the viscosity drops slightly, and can maintain good lubricating performance. Normal temperature environment: If the ambient temperature is between 0℃ and 30℃ and the output shaft speed is above 100 rpm, ISO VG150 gear oil can be used; ISO VG220 gear oil can be used when the ambient temperature is between 0℃ and 30℃ and the output shaft speed is above 100 rpm. Low temperature environment: If the ambient temperature is below -10℃, low pour point and low temperature flow need to be selected

  August 19, 2025
• How to preheat the WPDA147-30-B worm gear reducer when the working environment temperature is too low

  When the working environment temperature is too low, the WPDA147-30-B worm gear reducer can be preheated by the following method: Use heating device to heat rods: Heating rods can be installed in the reducer housing, such as some reducers with heating functions, whose heating components include a mounting seat and a heating rod, and the mounting seat and the housing can be detachably connected. Starting the heating rod can achieve heating in the installation cavity, thereby reducing the possibility of gear oil condensation. External heating equipment: Use infrared heaters, heating blankets and other external heating equipment to wrap it on the outer shell of the reducer, and heat the reducer as a whole to increase the lubricant temperature to above 0℃. Circulating hot oil preheating: If the reducer system is equipped with a lubricating oil circulation system, the lubricating oil can be heated to an appropriate temperature first, and then the hot oil can be poured into the reducer through the lubricating oil circulation pump, so that the lubricating oil can circulate and flow in the reducer, thereby heating various components of the reducer to achieve the purpose of preheating. Run at low speed

  August 19, 2025
• How to check whether the gears of ZJY90-12.5-S-axis mounted gear reducer are worn

  To check whether the gears of the ZJY90-12.5-S shaft-mounted gear reducer are worn, you can use the following methods: Visual inspection: directly observe the gear surface with the naked eye or with the help of a magnifying glass to see if the tooth surface is smooth and there are obvious wear marks, cracks, peeling, pitting and other damages, and at the same time pay attention to whether the tooth shape is complete, whether the tooth top becomes round, and whether the tooth root is worn. Inspection of measurement tool: Use calipers, micrometers or gear measuring instruments to measure the gear's tooth thickness, tooth pitch, tooth surface roughness, radial jump parameters, etc., and compare them with the new product standard value. If the measurement value exceeds the allowable error range, it means that the gear has wear or deformation. Color coating method: apply a thin color coating on the surface of the gear, let the gear run in a normal working state for a period of time before taking it off, and observe the wear of the color coating. The area where the color coating disappears is usually a more severely worn area. Noise and vibration analysis:

  August 18, 2025
• ZJY212-20-How to operate the field balance method in the solution to vibration abnormality of S-axis-mounted reducer

  The specific operation steps of the field balance method in the solution to vibration abnormality of the ZJY212-20-S shaft-mounted reducer are as follows: 1. Preparation work: Tools and equipment: Prepare vibration analyzer, test block (multiple specifications), electronic phase meter, wrench, marker, safety lock, etc. Safety measures: Stop the machine and cut off the power supply, lock the sign, and then operate it after confirming that the equipment is completely stationary. Inspection equipment: Exclude bearing damage, looseness, and irregularity. 2. Initial vibration measurement: Installing vibration sensors at the bearing seat of the reducer or near the rotor is generally required to be installed in both horizontal and vertical directions. Start the device to the operating speed and record the initial vibration value using a vibration analyzer, including the amplitude and phase angle. 3. Data analysis: Use a vibration analyzer to identify whether the dominant frequency is 1× speed frequency to confirm whether it is static or dynamic imbalance. Determine the type of imbalance, if it is a rotation with a relatively large length and diameter

  August 18, 2025
• What is the working principle of the protection device for the reduction oil tank with excessive temperature?

  RS57-10 The working principle of the oil tank overtemperature protection device of the reducer is to monitor the oil tank temperature in real time through a temperature sensor and compare it with the set temperature threshold. When the temperature exceeds the threshold, the corresponding protection action is triggered to prevent the reducer from being damaged by overheating. The specific details are as follows: Temperature monitoring: The core component of the protection device is a temperature sensor, and common ones include thermistors, thermocouples, etc. These sensors are installed in or near the oil tank of the reducer, and can sense the temperature changes of the lubricant in real time and convert the temperature signal into an electrical signal. Signal comparison and processing: The electrical signal output by the temperature sensor will be transmitted to the control unit, and a comparator is provided in the control unit to compare the received temperature electrical signal with the preset temperature threshold. When the temperature electrical signal exceeds the set temperature threshold, the comparator will trigger subsequent protection actions. Protection action execution: power off: if the protection device has power off

  August 15, 2025
• How to determine the heat dissipation requirements of hard-toothed RS87-7.27 helical gear reducer

  Determine the heat dissipation requirements of the hard toothed RS87-7.27 helical gear reducer usually needs to be achieved through thermal balance calculation. The specific method is as follows: Calculate the power loss: During the operation of the reducer, power loss will be generated due to factors such as gear meshing, bearing friction, and oil stirring. The lost power will be converted into heat. Calculate the heat dissipation power: The calculation of the heat dissipation power is related to the heat dissipation area A of the reducer, the heat dissipation coefficient K, and the ambient temperature 0 and the maximum operating temperature allowed by the reducer. The heat dissipation coefficient K is related to the heat dissipation method. During natural heat dissipation, the value of K is generally between 10-15W/(m²・K); if there is fan cooling, the value of K can reach 20-25W/(m²・K). The heat dissipation area A can be determined by calculating the surface area of the reducer case. For the case with the heat dissipation fins, the increased area of the heat dissipation fins needs to be considered. Thermal balance verification: According to the principle of thermal balance, when reducing

  August 15, 2025