What company makes belts that have the cross grooves in the belts?

[Qualitywires.com]

What kind of belt pattern do I need to fit this pulley?

I know there are some out there..is it good year? Gates just sells the straight line grooves and I need that one plus also have the cross hatch grooves also...

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Is there a technical name for this? Is it a gator groove belt? Not sure..

Thanks

 

[CROM]

I know Dayco makes them. Advance Autoparts sells them.

 

[tommygun]

Goodyear does make a belt that is called a gatorback, matches your description.

 

[FlyBryViper]

Any multi-groved, or serpentine belt will work with that pulley. You do not need a special belt for that pulley. Gates aramid or kevlar fibre, ot the Gooyear Gatoback series if you cna find them. Will need to know total belt lenght, rib count, and width.
The gooves between the teeth of that pulley are to either let air out, or trap air, depending on your point of view!