lubrication strategies for electric motor bearings

Whenever you have to lubricate an electric pump bench grinder or other electric motor don't pull just any oil off the shelf Instead pick up electric motor oil like 3-In-One electric motor oil (about $3 at amazon) Don't use automotive motor oil! It's too "thin" for electric motors Plus it contains detergent Looking for MOBIL Blue Polyurea Electric Motor Bearing Grease 13 7 oz NLGI Grade: 2 (5XB54)? Grainger's got your back Price $10 80 Easy online ordering for the ones who get it done along with 24/7 customer service free technical support more

Electric motor bearings and their application

The purpose of a bearing in an electric motor is to support and locate the rotor to keep the air gap small and consistent and transfer the loads from the shaft to the motor The bearings should be able to operate at low and high speeds whilst minimizing frictional loses

Jun 10 2019Grease lubrication is used in most rolling bearing applications Grease is a combination of a thickener and base oil The oil type can be mineral or synthetic When used grease clings to the internal bearing components releasing or bleeding oil onto the moving components

Apr 29 2013Industrial Division / Houston Motor Plant SHEET No 1 of 5 ISSUED 11/04/2014 Motor Operation Procedure SUPERSEDES 4/29/2013 REVISION 3 REFERENCE USE ONLY WHEN ISSUED BY MOTOR MKTG WRITTEN BY I MARQUEZ J BugbeeAPPROVED BY Motor Re-Lubrication REVISED BY R Roth Dist Mktg QC 1 SCOPE To give the recommended guidelines for electric motor

The bearings of grease-lubricated motors are greased at the factory with the grease cavity approximately 50% full Rotate the shaft of all grease-lubricated motors 10-20 revolutions at two-month intervals If the purchaser has specified the machine be packaged for long-term storage the foregoing

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MOBIL Blue Polyurea Electric Motor Bearing Grease 13 7 oz

Looking for MOBIL Blue Polyurea Electric Motor Bearing Grease 13 7 oz NLGI Grade: 2 (5XB54)? Grainger's got your back Price $10 80 Easy online ordering for the ones who get it done along with 24/7 customer service free technical support more

The bearings of grease-lubricated motors are greased at the factory with the grease cavity approximately 50% full Rotate the shaft of all grease-lubricated motors 10-20 revolutions at two-month intervals If the purchaser has specified the machine be packaged for long-term storage the foregoing

Jul 07 2008When you apply too much lubrication (especially to the sleeve bearing systems in smaller electric motors) the oil bypasses the bearing flinger and dissipates throughout the motor Too much lubrication causes oil circulation to exit the "closed loop" within the bearing system and the bearing "freezes up " Another potential problem you

Bearings: Replacement and Lubrication There are different types of bearings 27 and the required maintenance on them will depend on the type of bearing operating environment and the motor application There are lubed-for-life sealed bearings used in low horsepower motors that do not require lubrication

Mar 16 2020Of those 53% are due to bearing failures Put simply we are killing our motors through poor lubrication practices Electric-motor lubrication is not complicated You simply need to select the correct lubricant apply the right amount each time and do so at the required frequency So why do so many companies get it wrong?

to lubricate anti friction bearings should be fresh and free from contamination Properly clean the grease inlet area of the motor to prevent grease contamination 1 Select service conditions from Table 2 2 5 Select lubrication interval (Table 1) 3 Adjust lubrication interval with multiplier from Table 3 4 Select volume of grease from

The proper lubrication of electric motor bearings is essential to maintaining them in peak operating condition and ultimately in reducing unnecessary downtime This bulletin for ExxonMobil customers is intended to serve as a practical guide to the proper lubrication of electric motor

Lubrication Strategies for Electric Motor Bearings Heinz P Bloch Tags: electric motor lubrication bearing lubrication greases lubrication programs T he proprietary in-house statistics of a number of petrochemical plants in the United States indicate that approximately 60 percent of all motor difficulties originate with bearing troubles If a bearing defect is allowed to progress to the

Electric Motor Bearing Greasing Basics

Electric motor bearing greasing requires the motor to be de-energized during the procedure The result is reduced risk of excess grease entering the electric motor stator due to Couetti Flow and reduced viscosity due to heat Combined with safety issues proper lubrication can maintain the electric motor reliability Therefore a limited

This includes bearings greased for life in both the drive and non-drive end of the motor A grease for life bearing means that the grease and rolling elements of the bearing are encapsulated and the bearing can't be re-greased The 2Z bearings are closed by a metal shield on both sides of the bearing

Many electric motor failures are bearing related with the bearings never reaching their intended life According to the U S Department of Energy more than 70 percent of electricity consumed in industry comes from the use of electric motors which make up 25 percent of all rotating equipment in a plant

Nov 14 2016Again proper greasing procedures and lubrication management are far more important than placing mounting and maintaining more monitors on a rolling element-equipped motor bearing housing The 3 600-rpm electric motor in this case study was equipped with 85-mm bearings Shaft peripheral speeds are high on this relatively large motor

This includes bearings greased for life in both the drive and non-drive end of the motor A grease for life bearing means that the grease and rolling elements of the bearing are encapsulated and the bearing can't be re-greased The 2Z bearings are closed by a metal shield on both sides of the bearing

Feb 18 2016When it comes to lubricating electric motor bearings grease is essential In fact proper usage can keep your bearings in peak operating condition which can enhance equipment life and minimize maintenance downtime This article explains what you need to know about how grease works and how to choose the right grease to protect your electric

Improved bearing protection and lubrication will reduce downtime and the maintenance costs of electric motors but other important motor design features contribute to long service life including over-sized high quality bearings high tech winding insulation superior fan design high performance paint (such as epoxy) and a strong rigid cast

Even among companies that do lubricate motor bearings a common practice is to assign this task to electricians The logic is that the electrical department is responsible for delivering electric motor reliability so any motor-related maintenance task including regreasing should rest

Motor bearings Motor bearings within an electric motor can emerge from improper handling and storage improper installation misalignment improper lubrication start/stop processes contamination overhung loads and motor fan imbalance Contamination is one of the biggest reasons for bearing

Jun 19 2019About the author: Tom Bishop Tom Bishop P E is a senior technical support specialist with the Electrical Apparatus Service Association and has more than 30 years of hands-on and engineering experience at electrical machinery manufacturing and apparatus service firms Bishop has authored dozens of technical articles and papers and presented numerous seminars on electric motor