Previous in Forum: FEA Analysis/ASME Div 2   Next in Forum: Oxy Cylinders Valve Thread in Germany
Close
Close
Close
12 comments
Commentator

Join Date: Sep 2009
Location: Saudi Arabia
Posts: 74

Used Belt Deflection Force Setting

01/03/2012 3:05 AM

Does anybody has an idea about Fan pulley belt tension readjustment for used belt, for example if new belt tension setting is 50N (deflection force)what would be the setting for used one, is there any roll for that...thanks in advance

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
2
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 20974
Good Answers: 780
#1

Re: Used belt deflection force setting

01/03/2012 3:26 AM

As the belt wears (and thus loosens), the tension will decrease; it should be periodically retightened to the original value. (And inspected for tiny cracks or other excessive wear indicating the near end of useful life.)

__________________
In vino veritas; in cervisia carmen; in aqua E. coli.
Register to Reply Good Answer (Score 2)
Commentator

Join Date: Sep 2009
Location: Saudi Arabia
Posts: 74
#2
In reply to #1

Re: Used belt deflection force setting

01/03/2012 6:58 AM

thanks for your comment, in my experience, used belt tension setting would be less than new one, wouldn't be?

Register to Reply
Guru

Join Date: Aug 2010
Posts: 688
Good Answers: 21
#3
In reply to #2

Re: Used belt deflection force setting

01/03/2012 7:05 AM

No

Register to Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 30337
Good Answers: 818
#4
In reply to #2

Re: Used belt deflection force setting

01/03/2012 7:11 AM

That response would indicate a lack of need of making the original posting.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Commentator

Join Date: Sep 2009
Location: Saudi Arabia
Posts: 74
#6
In reply to #4

Re: Used belt deflection force setting

01/03/2012 7:37 AM

i did not get what you want to say!

Register to Reply
Guru

Join Date: Mar 2007
Location: at the beach in Florida
Posts: 31118
Good Answers: 1728
#5

Re: Used belt deflection force setting

01/03/2012 7:24 AM
__________________
Break a sweat everyday doing something you enjoy
Register to Reply
Commentator

Join Date: Sep 2009
Location: Saudi Arabia
Posts: 74
#7
In reply to #5

Re: Used belt deflection force setting

01/03/2012 7:44 AM

Nice Pickup

Register to Reply
Guru

Join Date: Mar 2007
Location: at the beach in Florida
Posts: 31118
Good Answers: 1728
#9
In reply to #7

Re: Used belt deflection force setting

01/03/2012 8:35 AM

I usually allow 3/4 to 1" play in the belt when wiggling back and forth with a firm hand...

__________________
Break a sweat everyday doing something you enjoy
Register to Reply Score 1 for Good Answer
2
Guru

Join Date: Oct 2008
Posts: 42294
Good Answers: 1662
#8

Re: Used Belt Deflection Force Setting

01/03/2012 8:17 AM

I'd adjust the drive belt according to the factory specifications, which likely will be less for a used belt, but the belt manufacturer is the only reliable source of tension information.

Register to Reply Good Answer (Score 2)
5
Guru

Join Date: Jul 2008
Location: Anywhere I may be at the time
Posts: 662
Good Answers: 16
#10

Re: Used Belt Deflection Force Setting

01/03/2012 8:56 AM

If the tension for the new belt is specified for 50N, this tension should be maintained throughout the life of the belt period. A new belt will require re-adjustment, number of re-adjustments largely depends upon your pulley condition, as the belt will wear to the pulleys contour.

Is this now clear?

There is not a new or used tension, there is only a specific tension for a specific belt period.

NOW with that said, some mechanics will often over tighten a new belt working under the idea that when it "wears in" the tension will be correct. This is bad practice as it adds un-necessary load to belt and accessory bearings.

You should have no further questions on the subject, tighten your belt to the manufacturers specifications, maintain this tension by adjustment throughout the life of the belt, thats all I have to offer.

Register to Reply Good Answer (Score 5)
Guru

Join Date: Oct 2008
Posts: 42294
Good Answers: 1662
#11
In reply to #10

Re: Used Belt Deflection Force Setting

01/03/2012 11:51 AM

My experience is with small centrifugal blowers, such as Paxton and Sonic Air.

I was mistaken about used belt tenison and Tim is correct.

This handy gadget is really cool, and cheap. It's from Gates Rubber.

Permits user to tension belts during installation, while engine is shut off, to maintain belt service life and performance. Use for tensioning all automotive V-belts up to, and including, 7/8" top widths. Easy to use.

Register to Reply
Commentator

Join Date: Sep 2009
Location: Saudi Arabia
Posts: 74
#12

Re: Used Belt Deflection Force Setting

01/03/2012 11:36 PM

Thank you ALL, for advice and contribution

Register to Reply
Register to Reply 12 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".

Comments rated to be "almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, rate them!
Copy to Clipboard

Users who posted comments:

Fahad (4); fixitorelse (1); lyn (2); PWSlack (1); SolarEagle (2); Tim in Mexico (1); Tornado (1)

Previous in Forum: FEA Analysis/ASME Div 2   Next in Forum: Oxy Cylinders Valve Thread in Germany

Advertisement