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Old 12-12-2017, 08:13 PM
Jared Jared is offline
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Join Date: Dec 2010
Location: Southwest Washington
Posts: 173
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Default Re: Bucyrus Erie crane truck

Quote:
Originally Posted by sparkycuda View Post
Love this build! Just a clarification about the center shaft and hook rollers. Center shaft does transmit propell power to lower works, but the house is also centered by the bushing around the shaft housing. Hook rollers control the tilting of the house on the ring, so clearance is needed between rollers and ring path. Roller clearance allows front rollers to contact on bottom flange and rear rollers on top flange, when lifting. If they are adjusted in too far, lack of clearance will prevent rollers from turning during house rotation.
Oops! My bad. I guess I've been away from it too long. Looking at my drawings I see I made provision for a center bearing.
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