Metal type

GROOVE: 6PK
O.D.: 110
HIGH: 29
BEARING: 35BD5220

72738P-6 : (left picture ) Clutch Pulley, Metal Type 110mm, 6PK
72738-PB : Clutch Pulley with Bearing for 72738 
72738H    : Hub, Brass color, for 72738P-5 and 72738P-6