Coupler

Welcome to our Community
Wanting to join the rest of our members? Feel free to sign up today.
Sign up

Kyle8

Well-Known Member
Oct 22, 2016
1,976
543
113
32
Real Name
Kyle manor
#1
I changed my coupler the other day and i was checking it today just to make sure everything was ok and noticed a crack. Im ordering a new coupler today.Everything is still working and tight . Anyone with any info or help would be much appreciated.
 

ACP

Well-Known Member
Apr 9, 2014
2,246
1,265
113
34
Washington
Real Name
Bjorn Marshall
#3
Just make sure it's rated to handle what it needs too, shouldn't Crack that easily.

Sometimes makes sense to change belts at the same time because some machine you have to remove coupler to do that. No sure what machine you have though
 

rob allen

Administrator
Staff member
Administrator
Sep 5, 2007
32,139
14,765
113
Va.
www.drynclean.com
Real Name
Robert Allen,Jr.
Business Location
United States
#4
Could have set up in a warehouse for awhile and dry rotted. Or it's offline when you installed it.
 

Qwikdry

Well-Known Member
Dec 2, 2012
1,806
741
113
Real Name
Russell
Business Location
United States
#5
that is a big crack..
 

Qwikdry

Well-Known Member
Dec 2, 2012
1,806
741
113
Real Name
Russell
Business Location
United States
#6
if you don't want to order one Kyle, i am up in Brigham City, Utah. their is a place in Corrine just 5-10 minutes to the west they have every coupler or belt pulley, or anything you can think of. K & K Bearing of Corrine. i saw couplers in there when i was picking up a 5.5" drive pulley for my truckmount. you will just need to know the shaft size.
 

longkenn

Well-Known Member
May 7, 2011
4,739
2,182
113
Winston-Salem, North Carolina
www.sunbreezeclean.com
Real Name
Kenneth Long
Business Location
United States
#7

Kyle8

Well-Known Member
Oct 22, 2016
1,976
543
113
32
Real Name
Kyle manor
#8
if you don't want to order one Kyle, i am up in Brigham City, Utah. their is a place in Corrine just 5-10 minutes to the west they have every coupler or belt pulley, or anything you can think of. K & K Bearing of Corrine. i saw couplers in there when i was picking up a 5.5" drive pulley for my truckmount. you will just need to know the shaft size.
Thanks
 

Qwikdry

Well-Known Member
Dec 2, 2012
1,806
741
113
Real Name
Russell
Business Location
United States
#10
dude they have a warehouse, they have everything related to pulleys, couplers, bearings, etc. maybe you could find a more heavy duty coupler than the one you have.
 

SRD

Well-Known Member
Nov 6, 2010
2,243
1,195
113
midwest
Real Name
Spencer Dawdy
Business Location
United States
#11

Kevin Dumas

Well-Known Member
Aug 31, 2008
2,944
565
113
Binghamton, NY
Real Name
Kevin Dumas
#12
Regarding the "orange" Hytrel coupling sleeves, they will take much more torque than the "black" EPDM sleeves but the temperature limits on Hytrel is lower than the EPDM type.

I believe a lot of coupler failures on truckmounts are heat related.
Temperature limits on the black sleeves is 275 degrees and I have tested many tm's with a laser thermometer and have seen temperatures of 350-375 on the flange closest to the engine. Even higher if the exhaust is routed close to the coupler.

You also need different flanges for the Hytrel sleeve.
 

seagrtj

Well-Known Member
Jun 28, 2011
1,279
517
113
MO
Real Name
Todd Seagraves
Business Location
United States
#14
Just make sure you measure the the gaps between hubs correctly according to the coupler specs. You could be putting too much stress on it under load if the measurements are off
 

Kyle8

Well-Known Member
Oct 22, 2016
1,976
543
113
32
Real Name
Kyle manor
#15
Is there room enough to slide the flange closest to the blower back to change your coupler sleeve or do you have to loosen up the blower or engine to change it?
Just take the engine bolts off took about 15min
 

Kyle8

Well-Known Member
Oct 22, 2016
1,976
543
113
32
Real Name
Kyle manor
#16
Just make sure you measure the the gaps between hubs correctly according to the coupler specs. You could be putting too much stress on it under load if the measurements are off
I think it was to tight honestly thays why it cracked
 

Kyle8

Well-Known Member
Oct 22, 2016
1,976
543
113
32
Real Name
Kyle manor
#18
I always heard Chemtex's went through couplers fast but my original one lasted 5 years and the one I replaced it with was used daily for 3 years and is still on it.
Still making money. Cant really compain