- Shear pin
A shear pin is the mechanical analogue of an electric fuse. Installed in a drive train, it is designed to break in the case of a mechanical overload, preventing other, more-expensive parts of the drive train from being damaged.
A shear pin may be plain
metalrod inserted through a hub and axle; the diameter of the rod is carefully chosen to allow the shearing action when the desired breakaway load is reached. A cotter pinmay also be used as a low-tech shear pin.
A common use of shear pins is in the drive train of a
snow blower's augeror the propellers attached to marine engines.
* [http://www.powertrainsavers.com/ company specializing in sheer pins]
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Look at other dictionaries:
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break pin — /ˈbreɪk pɪn/ (say brayk pin) noun → shear pin … Australian English dictionary