How do I remove a wedge key?
The normal way to remove the key is to use a small cold chisel to impact the edge of the key in order to force it from its slot in the shaft. The exposed end of the key can be ground with a die grinder so that a “v” grove is formed in the end of the key.
How do you remove a keyway pulley?
Use the socket wrench to tighten the screw at the end of the gear puller until the screw touches the pulley shaft. Continue turning until the pulley can slide free. You can strike the exposed end of the gear puller with a hammer to try to loosen the pulley.
What is a taper key?
The tapered key is tapered only on the side that engages the hub. The keyway in the hub has a taper that matches that of the tapered key. Some taper keys have a gib or tab for easy removal during disassembly.
What is a Gibb head key?
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.
What is feather key?
Definition of feather key in machinery. : a sunk key without taper that is permanently fixed in one of the connected pieces and that is a sliding fit in a keyway in the other so as to permit relative longitudinal motion. — called also spline.
Why is taper given to key?
(i)Taper keys : It is tapered (standard taper of this key is 1 in 100) in thickness but uniform in width. A taper key joint prevents relative rotational as well as axial movement between the two pieces.
Why taper is provided?
Because of taper, i) It is simple to remove the cotter and dismantle the joint parts. ii) Taper ensures tightness of the joint in operation and it prevents slackening of the parts. Generally the value of taper on cotter is 1 in 48 to 1 in 24.
What is sunk key?
Definition of sunk key : a key that fits into keyways in both the shaft and the secured member in machinery — compare saddle key.
What is Barth key?
The barth key is a square key with bottom too corners beveled. The beveled corner ensures tight fitting and lessing the tendency to twist when driving in either direction. There is a small clearance to permit easy removal and assembly.