What is a crankshaft Woodruff key?
What is a crankshaft Woodruff key?
A woodruff key is installed in the hub of a pulley or gear so that the pulley or gear does not slip off the shaft it is attached to or spin freely. By removing a key, you can remove and modify other parts of your vehicle or replace a bad key to improve performance.
What’s a Woodruff?
noun. any of several plants belonging to the genus Asperula or Galium, of the madder family, as G. odoratum(sweet woodruff ), a fragrant plant with small white flowers.
What is 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. The purpose of the taper is to secure the key itself, as well as, to firmly engage the shaft to the hub without the need for a set screw.
What is the use of woodruff key?
Woodruff Keys are used for locking gears and pulleys to shafts. On the shaft, they fit into a keyseat, which is a circular pocket that retains the key. An exposed portion of the key fits into a rectangular groove, often called the keyway, in the gear or pulley.
Why do they call it a woodruff key?
ETYMOLOGY OF THE WORD WOODRUFF KEY Named after the Woodruff Manufacturing Co, in Hartford, Connecticut, who first manufactured it in 1892.
What kind of key is a woodruff key?
The Woodruff key is a semi-circular disc and fits into a circular recess in the shaft which is machined by a woodruff keyway cutter. These woodruff keys are mostly used in machine tools and automobile shafts from ¼” to 2½” (6 mm to 60 mm) in diameter. The keyway in the shaft is a semi-circular pocket, the mating part, a longitudinal slot.
What causes a woodruff key to slip out of place?
But as the shaft and Woodruff key are pressed into the component, the key tends to slip out of position. Keys not installed parallel will cause problems in use. Woodruff keys are also relatively short and cannot carry the same load as longer keys.
What are the advantages of a wood Ruff key?
The main advantage of the Wood-ruff key is the elimination of milling near shaft shoulders, where stress concentrations, and concentricity would be affected. The latter is particularly important for high speed operation.
What is the meaning of the word Woodruff?
Woodruff key. noun. : 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. You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
The Woodruff key is a semi-circular disc and fits into a circular recess in the shaft which is machined by a woodruff keyway cutter. These woodruff keys are mostly used in machine tools and automobile shafts from ¼” to 2½” (6 mm to 60 mm) in diameter. The keyway in the shaft is a semi-circular pocket, the mating part, a longitudinal slot.
But as the shaft and Woodruff key are pressed into the component, the key tends to slip out of position. Keys not installed parallel will cause problems in use. Woodruff keys are also relatively short and cannot carry the same load as longer keys.
How do you remove a Woodruff pulley key?
Remove the Woodruff key. On the freed pulley, locate the semicircular shape in the shaft. This is the key and it can be removed by gripping the sides with pliers or wedging one end with a screwdriver. The key may be stuck.
Woodruff key. noun. : 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. You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
