[COL Woodchuck]

Loctite has several products that should work well with slip fit assemblies. My company has been using it to secure a similar pinion onto a 4mm servo motor shaft. At fist I thought it would never work but after years of use and hundreds in the field I have yet to hear about a single failure with the Locktite secured pinion. Make sure both parts are clean and dry. Loctite makes a primer that will allow a quicker setup time but does not increase the strength any. We used loctite 680 for our pinions. Just read the data sheet for the product you're using and follow the directions.