Belt tensioner
SIT S.p.A.
The difference between "P" and "S" type hubs is that in the precision execution the circular sections of the hubs are precision machined, while in the economy execution they are simply deburred.
The "S" version allows lower axial displacement as indicated in the technical performance table. Hubs are available in cast iron GG25, die cast aluminium alloy or forged aluminium.
On special request hubs are available in steel or cast iron GGG40. TRASCO® couplings are dimensionally manufactured to hub types "A" , "B" and "L" (long hub execution).
