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Factors causing heating and damage to permanent magnet motor bearings

03-19-2025 04:40 PM CET | Industry, Real Estate & Construction

Press release from: ABNewswire

Factors causing heating and damage to permanent magnet motor

1. Assembly and usage factors.

During storage or use, if the permanent magnet motor is placed in a humid or harsher environment, the permanent magnet motor bearing is likely to rust, causing serious damage to the bearing system. In this environment, it is best to use well-sealed bearings to avoid unnecessary losses.

2. The shaft diameter of the permanent magnet motor bearing is not matched properly.

The bearing has initial clearance and running clearance. After the bearing is installed, when the permanent magnet motor is running, the clearance of the motor bearing is the running clearance. The bearing can operate normally only when the running clearance is within the normal range.

3. The stator and rotor are not concentric, causing the bearing to be stressed.When the stator and rotor of a permanent magnet motor are coaxial, the axial diameter clearance of the bearing is generally in a relatively uniform state when the motor is running. If the stator and rotor are not concentric, the center lines between the two are not in a coincident state, but only in an intersecting state.

4. Good lubrication is the primary condition for the normal operation of permanent magnet motor bearings.

For permanent magnet motors operating in special environments, the working environment is relatively harsh, such as high temperature environment, low temperature environment, etc.

For extremely cold weather, lubricants must be able to resist low temperatures.

For permanent magnet motors operating in high-temperature environments, such as air compressor permanent magnet motors, especially in the southern region with higher temperatures, the operating temperature of most air compressor permanent magnet motors is above 40 degrees.

Anhui Mingteng's technical advantages

Mingtenghttps://www.mingtengmotor.com/uses modern permanent magnet motor design theory, professional design software and self-developed permanent magnet motor special design program to simulate and calculate the electromagnetic field, fluid field, temperature field, stress field, etc. of the permanent magnet motor, optimize the magnetic circuit structure, improve the energy efficiency of the permanent magnet motor, and solve the difficulties in on-site bearing replacement of large permanent magnet motors and the problem of permanent magnet demagnetization, fundamentally ensuring the reliable use of permanent magnet motors.

Shaft forgings are usually made of 35CrMo, 42CrMo, 45CrMo alloy steel shaft forgings. Each batch of shafts is subjected to tensile tests, impact tests, hardness tests, etc. according to the requirements of the "Technical Conditions for Forged Shafts".

In order to prevent the shaft current from corroding the bearing, Mingteng adopts an insulation design for the tail end bearing assembly, which can achieve the effect of insulating bearings, and the cost is much lower than that of insulating bearings. It ensures the normal service life of the permanent magnet motor bearings.

All permanent magnet synchronous direct drive permanent magnet motor rotors of Mingteng have a special support structure, and the on-site replacement of bearings is the same as that of asynchronous permanent magnet motors. Later bearing replacement and maintenance can save logistics costs, save maintenance time, and better guarantee the user's production reliability.

Media Contact
Company Name: Anhui Mingteng Permanent-Magnetic Machinery & Electrical Equipment Co., Ltd.
Email:Send Email [https://www.abnewswire.com/email_contact_us.php?pr=factors-causing-heating-and-damage-to-permanent-magnet-motor-bearings]
Country: China
Website: https://www.mingtengmotor.com/

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