Shaft Keys - Types and Their Design - Bright Hub Engineering
27/08/ · 3. Gib Head Keys: This type of key is quite similar to the tapered key except for a head which is provided at the bigger end of the key in order to facilitate easy removal of the key. This type of key is used in areas where frequent removal of the key is necessary. 4. Woodruff Keys: The woodruff key is so called because of its manufacturing method.
Most of the presses we work on have dual tapered keys at 90 degrees or 180 degrees to each other. When we repair the crank/flywheel/clutch fits, etc. we make new ones and knock them in with a 3 lb. hammer. Usually shoot for 1" drive, and fit the keys with hi-spot so they have minimum 90% contact. The slide hammer will take them right out.
Tricks to removing gib head tapered key - Tractor Talk Forum
18/08/ · Posted: Mon Aug 17, 5:09 pm Post subject: Tricks to removing gib head tapered key: I found a bad bearing on the reel of our Hesston haybine tonight when I was going over it, and in order to get at it I need to remove the hub that the drive pulley bolts to. New Holland used to sell Gib Key pullers they were available in a right and left
Gib keys, or gib head keys, are tapered and notched machine keys that are used on power transmission keyed shafts to hold pulleys and gears tightly on the shaft. The head of the key serves as a concussion point for hammering without damage to the shaft of the key.
Gib head sunk keys A Gib head-on sunk keys are added to make it easier to remove. As shown in figure 8, Gib head sunk keys are generally rectangular or square keys with a taper on the top surface to ensure a tight fit. What is the function of key How do you classify the keys? In mechanical engineering, a key is a machine element used to connect
A Better Gib Key Puller Reader Contribution by Staff. Email Print Facebook. Pinterest Twitter. 1 / 2. 2 / 2 I noticed in a recent issue of GEM where someone was attempting to pull out a gib key with a tapered wedge. This method is not too efficient, as the friction between the flywheel and the head of the key is likely as much or more than the
A Simple Gib Key Removal Tool - Smokstak® Antique Engine Community
The pullers in the picture (see above and below) are way more efficient, and will pull the most stubborn keys easily. The small puller is for a 7/16-inch thick key, is 3/8-inch thick and is threaded 5/16-24, which is all the room behind the toe of the key. The larger puller is for 5/8-inch thick key, is 3/4-inch thick and tapped 1/2-20.
Gib Key Removal | Smokstak® Antique Engine Community
Take the slide-hammer part of a slide hammer gear puller. Find a nut that fits the threads on the slide hammer puller, and weld a piece of flat iron to the nut, say about 1-1/4" X 2" X 1/4" thick. Drill a hole in the flat iron of appropriate size that will fit over the head of the gib head key.
The best way would be to make a collar with a keyway to slide over the head of the taper key. Then machine a relief in the bore so you can rotate the collar. That would lock it behind the key head and with a puller pull it out. Of course that only works if you have some room for the collar. Have you tried using a crows foot bar to pry it out.
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