How do I remove a pulley with a key?
How do I remove a pulley with a key?
Start by removing the threaded fastener that holds the pulley in place, loosening the pulley nut, and prying off the pulley with a pry bar or screwdriver. Then, grip the key, which is the semicircular piece inset into the shaft, with pliers and pull it off. You can also use a gear puller to remove the key.
What is a pulley keyway?
A keyway is a square channel machined into round a steel bar. The channel, or keyway, provides a place for a square piece of metal known as a key to lock a pulley or sprocket onto the round bar. The square key fits in both the keyway and a square slot machined into the sprocket or gear.
What is a shaft key?
: a key fitting in a shaft to secure an operating part fastened in or to the shaft.
What is a woodruff key?
Definition of Woodruff key : a shaft key made in the form of a segment of a disk and used with shafts not more than 2¹/₂ inches in diameter.
What is a motor shaft key?
A Shaft Key is a small element used in a joint to connect the motor more securely to a shaft, preventing the two elements from rotating relative to each other, and allowing torque transmission. The shaft key sits in a small slot cut in each shaft, which is called a keyway or keyseat.
What is a motor key?
In mechanical engineering, a key is a machine element used to connect a rotating machine element to a shaft. A machine runs by the power supplied to it by a prime mover such as motor, engine, etc.
What is a Woodruff key?
What is difference between key and keyway?
Key, Keyway, and Keyseat Usually the term keyseat is referred as a groove or pocket on a shaft, and a keyway is a slot in a hub in which the key fits into. The complete system is called a keyed joint (Figure 2). Keys are made of varied types of materials, and also come in different shapes and sizes.
What is a crankshaft key?
Crankshaft keys (also called woodruff keys) are semicircular shaped, removable keys that fit into matching keyways cut into the crankshaft leaving protruding tabs. These tabs mate with matching slots on the harmonic balancer flush upon the shaft.
Do I need a Woodruff key?
Advantages Of A Woodruff Key Include: Ideal for high speed rotating assemblies. Eliminates milling near shaft shoulders reducing stress concentrations at the shaft end. Deeper seat in the shaft reduces risk of rolling out of key seat. Provides a more exact fit, reducing play in the key seat.
Why are shafts keyed?
A key is a piece of metal used to connect a rotating machine element to the shaft. A key prevents a relative rotation between the two parts, and may enable torque transmission to occur.
What is the purpose of a Woodruff key?
A woodruff key, also known as a half‑moon key, is a semi-circular machine shaft key that prevents gears, hubs, or other components from moving independently of a rotating shaft or spindle.