Material: stainless steel 304. The crankshaft is made of stainless steel, which is more durable than ordinary iron products. Never rust, better protect the crank.

Bushing inner diameter 5/8″, outer diameter 3/4″, sleeve length about 3″, keyway 3/16′, stepped key length about 3″

The sleeve key and stepped key are designed to fit perfectly into the 3/16-inch keyway and fit on a 5/8-inch diameter crankshaft, and enlarged to 3/4-diameter through a 3/16-inch key seat

Replace motors with shafts of different diameters, and replace pulleys with different speeds or belts.

Used in conjunction with gas engine crankshafts to enlarge the crank diameter to fit pulleys, gearboxes, etc.
Application range:
?? Replace the motor with a different diameter shaft
?? Change the pulley to adapt to different speeds or belts
Reduce the need to purchase new motors or pulleys to maintain existing components and speed/power requirements.
??Adapt larger wheel holes to smaller shafts
??Used with gas engine crankshaft to enlarge the crank diameter to fit belt pulleys, gearboxes, etc.
Part specifications:
Sleeve inner diameter 5/8??
Outer diameter of sleeve 3/4″
Sleeve length is about 3 inches
Sleeve keyway 3/16 inch
The sleeve and the key seat are designed to fit on a 5/8-inch diameter crankshaft through
a 3/16-inch keyway and can be enlarged to 3/4 diameter through a 3/16-inch key seat.
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