Flail V belts

   / Flail V belts #1  

No1umfan

Bronze Member
Joined
Mar 21, 2011
Messages
59
Tractor
Massey ferguson 135
I need to replace the V belts on my Ford new Holland 918 H flail mower. The specs call for a 5/8 x 48.8 cm belt. That’s obviously a hard belt to find. Am I better off going with the 48 inch or 49?
 
   / Flail V belts #2  
Centimeter or inch? :)

I would do the 49" belt.
 
   / Flail V belts #3  
49" should work fine. Look at the adjuster on the mower, you should be able to determine if you have more adjustment to tighten the belt. If you have quite a bit, then the 49" is the one
 
   / Flail V belts #4  
5/8" belts are "B" belts. A 49" outside diameter is a B46. A B49 belt has an outside diameter of 52". Easy to find online. I found I had to crank the tension pretty high on my flail mower to keep the belts from slipping and self destructing. You can also buy a matched set that are exactly the same length. Apparently most belts can have minute length differences and thus the tension would not be exactly the same. I didn't find this to be a problem though.
 
 
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