Re: Topping hob question

Posted by lee on November 16, 2009 at 16:17:55:

In Reply to: Re: Topping hob question posted by Jim Pollock on November 14, 2009 at 21:40:22:

as Ron has stated
also I notice it is a class B hob

what is the AGMA class of the gear required.
& are you allowed to have chanfers on the TIPs?

generally a non topping hob is used.
I would recommend a class AA or A Hob.
see Ash Gears handbook for explanation of Hob quality.Tec I-40