Hello to technology enthusiasts and loyal followers of the coil_magnet channel,
Today, we present to you a fascinating and comprehensive video focusing on the precise service and maintenance of a 250 kW electric motor with a speed of 1000 rpm from the reputable brand ELIN. This electric motor is the largest LV motor that has ever been repaired in our workshop in terms of size. Featuring a NU224 cylindrical roller bearing at the rear and a combination of a 6224 ball bearing and a NU224 cylindrical roller bearing at the front, this electric motor is an exceptional example of engineering and precision. With a length of approximately 2 meters, this device is one of the largest of its kind.
In this video, we invite you on a journey into the heart of technology, showcasing every step of the repair and service process in full detail:
00:00 | Disassembly and inspection of the cooling fan
02:38 Separation of the fan from the shaft
07:16 Opening the rear cover and internal inspection
11:47 Removing the pulley from the shaft
16:15 Disassembly of the front cover and preparation for service
20:01 Removing the front bearing
22:24 Cleaning and preparing parts for assembly
23:34 Cutting the rear cylindrical roller bearing’s cone and separating it from the shaft
25:10 Removing the rear and front cylindrical roller bearings from the covers
25:54 Installing the rear cylindrical roller bearing
28:43 Assembling the rear cover
33:55 Installing the cooling fan and its cover on the shaft
35:35 Placing the front ball bearing
38:28 Installing the front cylindrical roller bearing
41:26 Installing the front cover and finalizing the work
We hope this video is not only educational but also enjoyable for you. Your comments and suggestions are very valuable to us and encourage us to produce higher quality content. Please support us with your likes and commentsas we continue on this journey.

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