BRAND NEW PIX HEAVY DUTY SYNCHRON POLYCHAIN BELT, FITS MANY GRINDERS SUCH AS THE SUPER JR & RG MODELS 1625 1631 1635. CHECK YOUR PART NUMBER WITH A DEALER BECAUSE SUPER JR'S OVER THE YEARS HAVE USED 3 DIFFERENT BELTS POLYCHAIN BELTS ARE RATED 10% HIGHER IN STRENGTH THAN GATES & OTHERS RAYCO PART NUMBER 750121, 1-1/2" WIDE 85 TEETH