Yanmar
Diagram of all the parts for the SA221 PULLEY(TENSION)
BUSH, 25X15
BEARING, BALL 6203
RING, 17
ADJUSTER,TENS.SPRING
SPRING,TENSION
ARM ASSY, TENSION
ARM UNIT, TENSION
COLLAR, TENSION
PULLEY ASSY, TENSION
BELT, BB 120
BELT, BB 122