cement

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Anonymous

Member since
April 2003
305,205 posts

Posted by Anonymous on Monday, February 14, 2005 10:29 PM

There's a green type of locktite just for this purpose. The R/C electric plane guys use it to secure pinions to motor shafts. It is extremely strong and no need to roughen up the surface. Just be sure it is clean.

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Anonymous

Member since
April 2003
305,205 posts

Posted by Anonymous on Sunday, February 13, 2005 10:59 AM

Also it may help to scuff both pieces if you are gluing them together. Especially if they are dissimiliar in compostion. It helps to give each component a "tooth" for the glue to adhere to. It doesn't have to be much just a very very fine sand paper is more than enough, inside the gear may be tough, but if the shaft is done it will at least help, better one side than none.

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bogp40

Member since
July 2004
From: Weymouth, Ma.
5,199 posts

Posted by bogp40 on Sunday, February 13, 2005 7:33 AM

Your reply came as I posted mine, steel shaft to brass gear I assume, use epoxy if the press fit is not secure.

Modeling B&O- Chessie Bob K. www.ssmrc.org

bogp40

Member since
July 2004
From: Weymouth, Ma.
5,199 posts

Posted by bogp40 on Sunday, February 13, 2005 7:30 AM

If steel motor shaft and plastic gear, many are press fit, but to secure I use a dab of locktite applied w/ a toothpick. Same works for replacement wheelsets never have gone out of gauge. If gear fit is very loose-easilly turns on the shaft, I would use epoxy.
Bob K.

Modeling B&O- Chessie Bob K. www.ssmrc.org