What is a "hex drive" on the new Athearns?

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dragenrider

Member since
May 2003
From: Ozark Mountains
1,167 posts

What is a "hex drive" on the new Athearns?

Posted by dragenrider on Monday, October 31, 2005 11:15 AM

I've seen this referred to on different occasions, but I still don't know what it means. I have many BB Athearns, but no new RTR ones. Pictures might help. Thanks for educating me! [:)]

The Cedar Branch & Western--The Hillbilly Line!

Anonymous

Member since
April 2003
305,205 posts

Posted by Anonymous on Monday, October 31, 2005 11:40 AM

The inside of the flywheels have a six sided shape, which fits a corresponding end on the drive shafts, thereby eliminating Athearn's old, sloppy u-joint. Much improved!

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Anonymous

Member since
April 2003
305,205 posts

Posted by Anonymous on Monday, October 31, 2005 11:49 AM

The drive shafts are also one-piece rather than the old design with two CV joints and a short connecting piece (which caused a lot of the old BB growl) - they're a lot quieter and run almost as well as Protos.

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dragenrider

Member since
May 2003
From: Ozark Mountains
1,167 posts

Posted by dragenrider on Monday, October 31, 2005 11:53 AM

Thanks! I understand now. Nothing liking asking questions to find out answers! [;)]

The Cedar Branch & Western--The Hillbilly Line!

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What is a "hex drive" on the new Athearns?

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