DRIVE BELT COMPATABILITY XPA AND SPA

[davet1948]

ARE THESE TWO BELTS FORMATS THE SAME I.E A XPA-2000 CAN BE REPLACED BY A SPA2000 TO MINIMISE THE NUMBER OF BELTS STOCKED
GOOGLING EACH THERE DOES SEEM TO BE A SLIGHT VARIATION IN THE TOP WIDTH 12.7mm COMPARED TO 13mm
APPRECIATE MEMBERS VIEWS

 

[Jboggs]

Ask the manufacturers. They are the experts.

 

[davet1948]

for info, this is what I have been told
SPA and XPA have same width, height and angle.
The difference is that SPA is wrapped and XPA is raw edge cogged.
XPA transmits 30% more power because grip is better.
They're interchangeable providing you don't mix them when the pulley has more than one groove.

 

[BrianPetersen]

Ask whoever specified each belt. There may be reasons behind each choice that you aren't aware of. Been there, done that, had to give purchasing hell for doing an unauthorized substitution and got to chew out my boss for telling purchasing to do that without asking engineering.