The short service life of SEW reducer is mostly caused by the failure of these three daily maintenance details.

The design life of SEW reducers can usually reach more than 10 years, but in actual factory applications, many equipments break down frequently after only three to five years. The reason is often not that the quality of the equipment is poor, but that the daily "maintenance, maintenance, and inspection" are not done properly. Do the following three things to make the reducer "extend its life".

1. Lubricant management is a top priority

Lubricating oil is the "blood" of the reducer.

First oil change: After the new machine has been running for 200-500 hours, the first oil change must be performed to remove metal particles produced during the running-in period.

Regular replacement: For reducers that work continuously for a long time, it is recommended to replace the oil with new oil every 5,000 hours or once a year.

Mixing is strictly prohibited: the same oil as the original brand must be added. Mixing oils of different brands may cause chemical reactions and render the oil ineffective.

Oil level control: The oil amount should be controlled at 1/2 to 2/3 of the oil level window. Too much oil will cause increased stirring heat, and too little oil will cause insufficient lubrication.

2. Installation and fastening cannot be careless.

Firm installation: The reducer must be installed on a stable horizontal foundation. An unreliable foundation will cause vibration and accelerate the damage of bearings and gears.

Knocking is strictly prohibited: When installing transmission parts (such as couplings and sprockets) on the output shaft, direct knocking with a hammer is absolutely not allowed. The internal threads of the shaft end should be used to press in with bolts, otherwise the internal bearings will be damaged.

Regular inspection: Regularly check the tightening of anchor bolts and connecting bolts to prevent unnecessary impact loads due to looseness.

3. Condition monitoring should be normalized

Listen to the noise: Normal operating noise should be less than 75dB. Once abnormal whistling or impact sounds occur, the machine must be stopped immediately.

Measure vibration: If possible, regularly use a vibration meter to measure the vibration value (standard is usually ≤2.8mm/s). Increased vibration is often a precursor to bearing or gear damage.

Check the temperature: Pay attention to the body temperature rise. If the temperature rises abnormally, check whether the load is too large, the heat sink is blocked, or the lubricant model is inconsistent.