The efficiency of multi-stage reducers is usually lower than that of single-stage reducers, mainly because each additional stage of transmission will bring additional energy loss. 1. The efficiency calculation method is different. The single-stage reducer has only one pair of gears (or worm gears) meshing, and the total efficiency = single-stage efficiency example: gear single-stage efficiency ≈ 96%~99%. The total efficiency of the multi-stage reducer = 1st stage efficiency × 2nd stage efficiency × … 2. Actual efficiency comparison (common types) 3. Summary of core differences (1) Single stage: high efficiency, low heat generation, low power loss, but small reduction ratio. (2) Multi-stage: A large reduction ratio can be achieved, but the efficiency decreases step by step, the heat is greater, and the power loss is more. (3) Under the same transmission ratio: use a single-stage large speed ratio (such as a large transmission ratio gear Read More

‌If the tooth thickness wear reaches or exceeds 10% of the original tooth thickness, it is judged as serious wear, and the gear needs to be replaced in time‌. To determine whether the ZD10-31.5 gear reducer tooth thickness wear has reached 10%, quantitative measurement can be carried out through the following steps: 1. Obtain the original design tooth thickness value. Consult the equipment technical manual or gear drawing to determine the original tooth thickness of the reducer gear of this model at the graduation circle (usually in mm). For standard gears, the tooth thickness can be calculated according to the formula s=, where m is the module. ‌2. Actual tooth thickness measurement‌ Use special tools such as ‌Tooth thickness caliper‌ or ‌Common normal micrometer‌ to measure the current tooth thickness at the gear graduation circle position. It is recommended to select 3 to 5 evenly distributed teeth for measurement and take the average to reduce errors. 3‌. Comparative calculation formula for calculating the wear ratio: Wear ratio Original tooth thickness Actual measured tooth thickness Original tooth thickness % If the result‌≥10%‌, it indicates that the tooth thickness wear has exceeded the standard. 4‌、 Read More

‌Oil leakage occurs on the upper and lower joint surfaces of the RV50-10-0.25KW reducer case‌. The core is static seal failure, which is common in uneven joint surfaces, improper bolt tightening or sealant failure. The following are systematic solutions: 1. ‌Priority troubleshooting and processing steps‌‌1. Check and tighten the bolts‌Tighten the upper and lower box connecting bolts evenly and step by step in diagonal order to avoid unilateral stress causing the joint surface to warp. Refer to the 'standard torque value' specified in the equipment manual for retightening. Do not blindly apply force to prevent the seal from being crushed or the box deformed. ‌2. Clean the joint surface and replace the sealing material. ‌Disassemble the joint surface (if necessary), thoroughly remove the old sealant, oil and residue, clean and dry with absolute ethanol. Re-apply anaerobic flat sealant (such as Loctite 515) and apply glue evenly along the inside of the bolt hole. The thickness should be controlled at 0.2~0.5mm to prevent glue from flowing into the inside of the box. 3‌. Check the flatness of the joint surface‌ Read More

The most easily overlooked detail errors in the lubrication and sealing stages of the WHS180-50-1 worm gear reducer include: failure to change the oil in a timely manner, improper oil level control, impurity mixing, vent plug blockage, and lubricant errors. These details may seem small, but they can easily lead to cascading failures such as oil leakage, overheating, and increased wear and tear, affecting the life of the equipment. ‌1. The first oil is not replaced in time‌After a new machine or the worm is replaced, the first lubricating oil must be replaced within 7-14 days of operation. Many users ignore this step, resulting in metal shavings remaining during the running-in period and accelerating wear. ‌2. Oil level control deviation‌The oil level should be maintained at 1/2 to 2/3 of the viewing window. If it is too high, it will increase oil churning loss, temperature rise and risk of leakage; if it is too low, there will be insufficient lubrication, resulting in dry wear of the tooth surface. 3‌. Impurities are mixed during the refueling process. Failure to pay attention to cleaning when refueling, checking or changing the oil will cause moisture, dust or metal shavings to enter the fuel tank, destroying the performance of the oil and exacerbating component wear. ‌4. Read More

The most difficult fault to solve for the BLY39-17-22KW cycloidal pinwheel reducer is the wear of the bearing chamber (including the wear of the box bearing hole and the bearing seat mating surface), followed by the severe wear/broken teeth of the cycloidal wheel and pin gear shell set. 1. Why are these two types of faults the most difficult to repair? 1. The repair cost is high: the wear of the bearing chamber requires repair welding and then machining or inserting, which requires high precision (within a few wires), long downtime and expensive costs; the cycloidal wheel and pin gear shell need to be replaced in sets, and the purchase cycle for single parts is long. 2. Accuracy is difficult to guarantee: the coaxiality and fit tolerance of the bearing hole directly affect the operating stability, welding repair is easy to deform, and ordinary repair is difficult to achieve the original accuracy. 3. Risk of chain damage: Bearing damage can easily cause journal wear, further expanding the gap in the bearing chamber, forming a vicious cycle. 4. Difficulty in disassembly and assembly: It involves precision components such as eccentric bearings and couplings, which require special tools. Improper disassembly and assembly can easily damage parts. 2. Quick identification and response summary: Bearing chamber wear and core transmission parts are serious Read More

CWU63-6.3-Ⅲ is a small arc cylindrical worm reducer. After the journal is repaired (such as spraying, repair welding, brush plating, inlaid sleeve, etc.), the standard running-in time is recommended: 2 to 4 hours without load, 8 to 16 hours with light load, and the total running-in is not less than 10 to 20 hours, then it can run normally with rated load. Specific running-in process 1. No-load running-in (2 to 4 hours). Start for the first time after repair. Run continuously without load. Observe oil temperature, noise, vibration and sealing for leakage. The temperature should gradually rise and stabilize. 2. Light load running-in (8 to 16 hours), load to 30% to 50% of the rated load, and run continuously. At this stage, the main purpose is to gradually fit the mating surfaces of the shaft, bearing and oil seal to avoid excessive local stress. 3. After gradual loading with light load and running-in without abnormality, gradually increase it to full load in 2 to 3 times, and run it for 2 to 4 hours each time. After confirming that the temperature rise, noise, and sealing are all normal, it can be put into normal use. Read More