Schedule time require for greasing of motors and pumps bearings???? 1

[johngladstone]

Gentelmen,

can i know the schedule require for greasing of bearings for motors and pumps when it is operate 24 hr per day and when it is shutdown for six month??


Thanks in advance for your help.

 

[desertfox]

Hi john

Check the motor manufacturers manual it usually tells you in there,also check the nameplate on the motor it sometimes tells you the grease and time period.

desertfox

 

[waross]

More motors are lost to over greasing than under greasing.
An old school rule of thumb for a mill running two shifts was one shot per bearing for small motors, two shots for larger motors, once a year.
When in doubt, leave it for next year.

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[johngladstone]

Dears

thanks for your quick reply ,

@desertfox ,

There is no mention for greasing period at nameplate my motors is seimens range from 5Hp to 10 Hp so i actually cofuse for the period required to be greased if the motors work 24 hr/day/month ,and if there is stopped period reach 6 month .

@waross,

pls can you clarify more

is there any one get experience fopr soiemens and marathon motors??

with Fully regards
John.

 

[desertfox]

I might help if you specified the type of motors and there rating, serial number etc, can you not find anything in the manufacturers manuals? failing that contact Siemens and enquire with them.

 

[spciesla]

Check out the following article. It includes a table from EPRI NP-7502 that provides intervals based on machine size (hp), speed, load configuration, ambient temperature, and operation (continuous or standby).

http://reliabilityweb.com/index.php/articles/a_proven_electric_motor_regreasing_program/

 

[waross]

My supervisor's policy was to add a small amount of grease every year. Records were kept. If a motor had been changed during the previous year, it was not greased and a new entry started.
That is great information, spciesla. lps
johngladstone: I defer to the information provided by spciesla.

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[johngladstone]

Dears

thanks for all you for your helpfull and give time to help ,thanks for data sheet



Br
John