Help finding a shaft coupling 7/8" --> 5/8"? 1

[JDubz313]

It seems nobody makes a shaft coupling that steps down 1/4" from 7/8" to 5/8". I am looking for a clamp-style coupling. Hooking up a gearbox that has an output shaft of 7/8" DIA with a 3/16" keyway to a ball-screw setup that has a shaft size of 5/8" DIA with a 3/16" keyway. Any ideas of someone that makes one that can handle these sizes, with or without the keyway? Thanks.

 

[mcgyvr]

1 off? ridgid/flex?
Mcmaster has rigid couplers with a fixed 7/8" bore on one side and a machinable-bore (.235" pilot hole) on the other side that you could enlarge to size. (part number 3084K47)

They also have step up/down clamp on shaft adapters.. (like part number 9783T2)

Have you tried Misumi?.. They have a large selection too.

 

[mcgyvr]

http://www.nutsandbolts.com/7858-double-split-shaft-coupling-black-oxide-no-keyway-qty-1-p-5238.html

http://www.nutsandbolts.com/7858-do...-stainless-steel-with-keyway-qty1-p-5304.html

 

[mcgyvr]

http://www.daytonsuperiorproducts.com/couplings/double-split-couplings.html

Just google 7/8-5/8 shaft coupling

 

[diskullman]

Ruland

http://www.ruland.com/ps_couplings_rigid_spc.asp

Maurey

http://maurey.com/pdfs/slv_cplg_temp.pdf

Russell Giuliano