Herr B175-A8 Sprocket Drum

Unit is .404 Pitch x 7 Tooth Spur 

For McCulloch Models; 

D-30, D-36, 140 Series 1-40, 1-41, 1-42, 1-43, 1-45, 1-46. 

150 Series 1-50, 1-51, 1-52, 1-53 

McCulloch 200, 250, Mac-15

Please see pictures for additional reference

Drum Dimensions; 

0.62 (5/8") Bushing Inside Diameter

0.75 (3/4") Center Bore Hole

3.12 (<3 1/8") Clutch Inner Diameter, 

3.30 (3 5/16") Outside Diameter Clutch. 

0.82 (13/16") Clutch Wall Width / Depth (Measured from inside wall)

0.75 (3/4") Bushing Width / Height 

1.47 (<1 1/2") Total Height 

Could have surface rust, specking, dust, dirt, grease, and 

blemishing from working shop storage and shelf life.

This is a vintage new old stock part and can expect some 

specks and spots, lines and blemishing. 

You will only receive what is in the pictures, nothing else is included.