Re: [CAD_CAM_EDM_DRO] Lovejoy Couplings

In a message dated 10/31/2000 2:46:49 PM Hawaiian Standard Time,
janders@... writes:

<< From comments I've read here regarding coupling encoders to screws or
motors, I suspect there's going to be too much free play. The flexible
beam (helical) couplers would work better IMHO.
MSC lists one that uses an acetal part to couple the hubs and claim zero
backlash. I was tempted to try them, but at $48 ea in the size I'd need,
I wasn't willing to gamble.

Jon

>>

Jon,

I bought some helicals with a 5/8 X 3/8 bore. They were three beamed. Set
me back 70 dollars each. But they are very stiff. 1.25' OD, rated at 93 inch
lbs. SS 303 construction. Berg brand. Good stuff like the "big boys" use.

Peter
THRD, Inc.