Description

This is the demo unit that I assembled for another listing. I sell just the loose GEARS to make this assembly in another listing. Also note that I have thousands of other GEARS sprockets pulleys and gear motors for sale in my eBay store. For sale is one matching pair of Boston gear worm gears. THIS USES A DOUBLE LEAD WORM SO THE RATIO IS 20:1 You get the steel worm and one phenolic 40 tooth(CIRCUIT BOARD)worm gear. This is being sold complete with both GEARS, both shafts, 2 shaft collars, the 3/32" pin and the Allen wrench to tighten the two collars. Please understand that the worm gear is permanently fixed onto the steel shaft (3/16")with red number 271 Loctite. The larger shaft is .250" in diameter. Both shafts are approximately 3 1/2 inches long. Please note that on the larger shaft I drilled two separate holes for the cross pin. One hole is approximately in the middle and the other is near one end of the shaft so you have two different mounting options for this shaft. Please look at the pictures and you will see that I use the permanent red number 271 Loctite to set this on a shaft. This creates a bond that is stronger than any setscrew and will never come loose. These were removed from vintage Boston gear packaging and are now stored with desiccant packs to control moisture and to prevent corrosion or mildew. These are very clean and do not have any odor. For clarity please note that the tube of Loctite and the measuring instruments are not part of the sale. If you pay before noon Eastern time I will mail your package the very same day. Once again if you need them I sell just these gears in another listing.