AK56-1" Sheave Pulley - 5.6" OD 1-Groove Pulley AK56 for V-belts 4L, A, AX, AK561 (OD5.6" - ID : 1") Ball Diameter - 29/32 inch (0.90625") this is a popular size

this is a popular size that could be used in many application that uses 11/16" inch

6905 Open Ball Bearing

a standard bearing size with dimensions commonly used across many industries: 6mm x 22mm x 7mm

CR22VBUU Flat Cam Follower

AK56-1" Sheave Pulley - 5.6" OD 1-Groove Pulley AK56 for V-belts 4L, A, AX, AK561 (OD5.6" - ID : 1") Ball Diameter - 29/32 inch (0.90625") this is a popular sizeAK56 1" Sheave Pulley With One Groove OD: 5. 6" ID: 1" V Belts size 4L, A, AX, AK561 5. 6" Cast Iron Pulley Sheave 1" Shaft One Grooves V Belt A Section 4L AK56 1" Outside diameter: 5. 5" inch ~ 5. 6" Bore : 1" inch Belt section size: 4L, 3L One Groove One pulley Hex set screws AK561 keyway AK56 1" AK561