lt 1 balancers
Pro
Joined: Dec 2002
Posts: 704
Likes: 16
From: Dallas Texas
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: lt 1 balancers (BAM92)
The hubs that Thunder Racing offers are GM hubs that has a keyway broached into them. If they had to cut an addtional groove into the hub for the metal chips to break away during the broaching operation this could weaken the hub substaintially. I have not seen one of their hubs before but I have seen another and that was the case with it.
See this cutaway drawing I made so everyone can know what I mean. It isn't to scale and its something I just whipped up on CAD.
http://members.aol.com/_ht_a/tjwong008/public/hub.doc
Notice the groove just behind the blind area where the bolt goes through. They have to machine this groove there so that when they broach the key slot the chips can have somewhere to go, otherwise they would be hitting that blind with their cutting tool. The only other way to do it is to use an EDM machining process which would be very expensive. I am not a machinist, this was how it was explained to me by my machinist who built my billet hubs.
[Modified by tjwong, 8:54 AM 10/20/2003]
See this cutaway drawing I made so everyone can know what I mean. It isn't to scale and its something I just whipped up on CAD.
http://members.aol.com/_ht_a/tjwong008/public/hub.doc
Notice the groove just behind the blind area where the bolt goes through. They have to machine this groove there so that when they broach the key slot the chips can have somewhere to go, otherwise they would be hitting that blind with their cutting tool. The only other way to do it is to use an EDM machining process which would be very expensive. I am not a machinist, this was how it was explained to me by my machinist who built my billet hubs.
[Modified by tjwong, 8:54 AM 10/20/2003]
