How To Replace Bearing For Electric Motor?

09/08/2016 by Leave a Comment

With advance technology,we can found the root cause for abnormal sound using Vibration Analysis for rotating equipment.When vibration owner confirm that bearing are defected,we must plan to change or replace a bearing.This time I would like to share video completed method how to replace electric motor bearing.

This is common activities for Electrician to perform bearing replacement during daily routine or turnaround / shutdown.We must ensure all bearing condition for our electrical motor in good performance to prolong bearing life time and can avoid unplanned downtime that can increase maintenance cost. Read More

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How To Use Bearing Induction Heater ?

01/08/2016 by Leave a Comment

This post I would like to share a video How To Use Bearing Induction Heater.Normally when we dealing with bigger motor or pump bearing,it’s quite difficult to install bearing into shaft because a tolerance gap is small.If we use a bearing pusher to install bigger size bearing into shaft,it’s risky and probably percentage of bearing was damage is high.That why we must use bearing induction heater for more safe and easy bearing installation.

In this video, I used old version of SKF bearing induction heater but still working perfectly without any problem.For latest version and model of Induction Heater from SKF,please visit SKF website  Read More

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How to remove bearings from equipment?

04/06/2011 by 1 Comment

For rotating equipment normally it have a bearing for smooth running.Each type of bearing design has a deference method for remover.We must know how to remove the bearing according the types and the location it have install.

The remover process  must be done with extreme care. If not,you can damage the bearings,housings or shaft and can make the high additional cost for repairs.

Common practice for smaller bearings, we can choose  a variety of pullers available in market to deal with bearing removal process.If you not sure how to choose the right puller or need a special pullers please be obtained by contacting your electric motor supplier or manufacture for more detail. read more

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Class of insulation

03/06/2011 by 6 Comments

The main component for electric motor is a stator.What is stator?Basically stators are wound with insulated windings made from cooper wire.The insulation  materials for winding of stator such as polyester, poly vinyl formal,polyurethane etc.

The main purpose of insulation is to protect the windings in the slots of the stator lamination and layer between winding coils.The insulation class is durability factor depend on whole of insulation condition.

According from IEEE regulation,The classification of insulation electric motor have a deference rating for maximum temperature that insulation winding can operate.We can see the insulation class at  motor nameplate.Please refer the table below for insulation class rating temperature. read more

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Bearing lubrication

29/05/2011 by Leave a Comment

To ensure the electric motor always in good condition,we must perform periodical bearing lubrication.Normally electric motors moves the majority of rotating equipment in the industry.

From the analysis,the major cause for electric motor failure is a bearing defected around 75%.That why bearing lubrication very important to avoid electric motor breakdown.It also can save repairing cost for electric motor major failure. read more

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Electrical motor components

02/05/2011 by 2 Comments

Electrical motor is a common used in industrial for many application.This time i want share the basic knowledge for electric motor.Before we go further about how to troubleshooting,repairing or installing,firstly we must know roughly about the electrical motor component.

For electrical person,electric motor components basic knowledge should familiar because we can easily understand operation and troubleshooting for electric motor.

We must know all electrical motor components function before we perform any task for electrical motor.This is very important information to make our jobs more easy and smooth.Below are several important for electrical motor components. read more

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motor nameplate information #6 – Construction

15/03/2011 by 1 Comment

This information is very useful when we selected the electric motor.From this data we can estimate the type of motor and the suitable application to ensure it running full capacity and more efficiency.

This is a basic data that we can get from electric motor name plate.Normally it tell about enclosure,motor frame,and bearing.This information can make we easier to rectify any problem when motor is defected.

Example we can know the size and type of bearing used for that motor.We can know the information without dismantle the motor.Only from the nameplate of motor. read more

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