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uxcell Woodruff Keys, 25pcs Steel 3mm Width x 3.7mm Height x 10mm Diameter Semicircle Keys

4.7 (4) Write Review
Free shipping on orders over $29.99

$7.46

$ 2 .99 $2.99

In Stock

1.Size:10mmx3.7mmx3mm


About this item

  • Size: Length: 10mm/0.39"; Width: 3.7mm/0.15"; Thickness: 3mm/0.12"
  • Material: Made of #45 carbon steel, it has higher hardness; Finish: Polished
  • Feature: The Woodruff keys is a semi-circular disc and fit into a circular recess in the shafts, which is machined by a Woodruff keyway cutter. These Woodruff keys are mostly used in machines, tools & shafts.
  • Advantage: More precise fit of the key and also reduces keyway play and stress concentrations, and improves the reliability of the key.
  • Application: Woodruff is commonly used in machine tools, for example, between the flywheel and crankshaft of a small internal combustion engine, where the drive depends largely on the fit between the shaft and the cone-bored flywheel hub.


Product Description

1

  • Woodruff keys are semi-circular keys that are commonly used for mechanical applications. It fits in a half-moon shaped slot, in a shaft, leaving the flat side of the tab exposed. They are designed not to function when excessive force is placed on the shaft, used for mechanical applications.
1

Advantages

  • This is an easily adjustable key.
  • This hub is capable of accommodating any taper in the keyway,
  • This is a more precise fit of the key and also reduces keyway play and stress concentrations, and improves the reliability of the key.
  • This ends milling near the shaft shoulders, where stress concentrations and concentrations will be affected.
  • This is especially important for high-speed operation.

Ceebandzzzlab
2025-06-14 11:03:08
Very nice addition to the toolbox if you work on small engines, it’s a very common keyway size. Strong material holds up to the heat.
Bubbie
2025-06-09 17:56:21
Good price and perfect fit
Bryan F
2025-03-27 13:44:53
I need the half-moon keys for the handle on a mill. Of course, I was adjusting the handle and the one we had fell out and apparently fell into a black hole because it was nowhere to be found. It's a common thing. They are small.So, I bought a bag of 25. I installed on as a replacement to get the mill operating again. Awesome! Works perfectly again. And I have 24 more on hand when I stupidly lose another one. They are cheap enough, so why not?
James Warren
2025-01-05 17:36:09
Exactly what they said there where