WPKA120-40-B The fault diagnosis and maintenance of the worm gear reducer can refer to the following experience: Fault diagnosis, listening and positioning: The sound of metal friction may be due to lack of oil or oil deterioration, so you need to check the oil level in the oil window immediately and touch the box to see if it is hot; regular impact sounds may be broken teeth or damaged bearing cages, you can stop the machine and turn it manually to feel if there is any jamming; high-frequency whistling sounds may be poor alignment of the coupling, use a screwdriver to hold the bearing end and listen to the sound changes. Touch diagnosis: touch the bearing seat, and if it is hot (>70°C), the bearing may be lacking grease or damaged; touch the box joint surface, and if oil leakage or scaling occurs, the seal may be failed; touch the output shaft, if there is obvious swing, the bearing may be worn. Visual inspection: Check the lubricating oil. If the oil window is turbid, it may be oil emulsification. If the oil is black, it may be metal wear. Check the coupling. If the elastic gasket is cracked, replace it immediately. If the alignment is offset, use a ruler to roughly measure the gap. Read More

Judging the degree of wear of the worm gear of the WPKA175-15-A reducer requires comprehensive visual inspection, operating status analysis and precise measurement. The specific methods are as follows: 1. Appearance inspection‌Tooth surface wear characteristics‌If scratches, grooves or accumulation of metal debris along the sliding direction appear on the tooth surface of the worm gear (copper alloy), the surface roughness will increase significantly, indicating the existence of uniform wear‌. If the tooth surface of the worm (steel) is partially polished or dented, material transfer may occur due to sliding friction. Gluing damage is manifested as metal adhesion, tearing or melted plaques on the tooth surface, which are dark brown in color. In severe cases, traces of 'bite welding' can be seen. ‌Pitting Corrosion and Cracks‌Scattered pits (pitting corrosion) or fine cracks in the tooth root appear on the tooth surface, which require observation with a magnifying glass, indicating the risk of fatigue wear‌. 2. Operating status monitoring ‌ Abnormal noise and vibration ‌ The noise in the initial stage of wear changes from 'smooth sound' to 'rustling sound', and 'piercing screams' or periodic impact sounds appear during gluing. Vibration amplitude exceeds 0 Read More

The following is the daily maintenance plan for parallel shaft F77-55-3KW-4P gear reducer bearings, combining lubrication management, condition monitoring and preventive maintenance measures: 1. Lubrication management ‌ Grease selection and filling ‌ Use lithium-based grease (such as NLGI level 2), and the filling amount is 1/2-2/3 of the bearing cavity space. Replenish grease every 3-6 months, shortened to 1-2 months in high temperature or dusty environments. ‌Lubrication system inspection‌Check the oil level window (if available) every week to ensure that the grease is not dried out or contaminated‌. Replace the grease immediately if it is found to be discolored (blackened) or contains metal particles. 2. Operating status monitoring‌Vibration and temperature detection‌Use a vibration meter to detect the bearing parts every day. The effective value of the vibration speed should be ≤4.5mm/s‌. An infrared temperature measuring gun monitors the temperature of the outer ring of the bearing, and the temperature rise is ≤25℃ (limited to ambient temperature +40℃). ‌Judgement of sound and abnormal noise‌During normal operation, the bearing sound is even and periodic. Read More

The essence of the poor lubrication of the hard-tooth surface F97-Y7.5-NA40-M4 reducer bearing is that 'the lubricating medium does not continuously and stably act on the rolling contact surface of the bearing according to the design requirements.' The reason can be from the lubricating medium itself, the lubrication system/ The four core dimensions of structure, installation operation, and working environment are disassembled. The specific analysis is as follows: 1. Reasons related to lubricating medium (core factors) The performance, state or Selection of the lubricating medium (usually gear oil, some bearings use grease alone) directly determines the lubrication effect, and is the most common source of failure: Lubricating oil Selection Error not pressed The manual of the reducer requires the selection of oil: for example, the misuse of low-viscosity oil (cannot form enough oil film, resulting in direct metal contact), high-viscosity oil (poor fluidity, difficult to penetrate into the tiny gap between the bearing raceway and the rolling element), or failure to use 'extreme pressure anti-wear gear oil' (hard-tooth surface reducer load is heavy, ordinary lubricating oil is easily crushed, and cannot form an effective Read More

Analysis of the reasons why the oil level of the WSJ80-18.5-II worm gear reducer is too low is as follows: 1. The seals are aged or damaged. The seals (such as oil seals and O-rings) of the worm gear reducer may fail due to high temperature, oil corrosion or mechanical wear after long-term use, causing oil leakage. Check the oil pan, bearing seat and other joint surfaces for oil leakage. If the sealing gasket is hardened or cracked, it needs to be replaced in time. 2‌. Damage to the oil pan or box structure. The oil pan may leak due to collision or corrosion, so weak parts such as box welds and bolt holes need to be inspected. Long-term vibration of the worm gear reducer may cause box deformation, resulting in uneven sealing surfaces and oil leakage. 3. The oil filter or oil line is clogged. A clogged filter or failure of the bypass valve will hinder the oil circulation, resulting in abnormal oil level display (the actual oil volume is not reduced but the pressure is insufficient). A clogged oil pump filter or a faulty internal pressure relief valve will also affect the accuracy of oil level monitoring. Read More

Maintenance method of WSJ150-39-II worm gear reducer 1. ‌Regular lubrication management‌‌Lubricating oil selection‌: Special worm gear lubricating oil (such as VG220 or VG320) needs to be used to ensure lubrication performance and wear resistance‌. ‌Oil level check‌: Regularly check the oil level through the oil level mirror or oil plug to avoid oil shortage or excess (small models may not have an oil level mirror). ‌Oil change cycle‌: It is recommended to change the lubricating oil every 3000-5000 hours of operation or once a year. The cycle needs to be shortened under severe working conditions. 2. ‌Installation and operation and maintenance‌‌Installation accuracy‌: Ensure that the reducer is aligned with the axis of the equipment to avoid vibration or wear due to assembly deviation. ‌Load control‌: When starting a new machine, the load must be gradually increased to avoid full load impact. ‌Heat dissipation environment‌: Keep the motor fan well ventilated, and add cooling measures in high-temperature environments. 3. ‌Sealing and dustproof‌‌Oil seal inspection‌: long-term storage (4-6 months Read More