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Clamp-style shaft collars are designed to solve the problems associated with the set-screw collar. They come in one- and two-piece designs. Instead of protruding into the shaft, the screws act to compress the collar and lock it into place. The connection between the shaft and the collar is made with friction.
His company's chief products at the time were shaft hangers and shaft collars of pressed-steel construction. The "safety craze" created a burgeoning demand for headless set screws on pulleys, gears, and collars to replace the headed ones, so that workers' clothing and fingers were less likely to catch on the exposed rotating screw head.
A lathe dog is a mechanical device typically made of cast iron, steel or aluminum that transmits rotary motion from a faceplate to a workpiece mounted between centers in a lathe. [1] The tail of the dog is rotated by a slot in a driving faceplate, a stud mounted on a faceplate, or sometimes a side of a chuck jaw. The workpiece passes through an ...
A W-type external-thread collet (red) being pulled into its spindle seat (green) with a drawbar (blue), clamping, rotating and then releasing a shaft. A collet / ˈ k ɒ l ɪ t / is a segmented sleeve, band or collar. [1] [2] One of the two radial surfaces of a collet is usually tapered (i.e a truncated cone) and the other is cylindrical.
By having twice as many clamping points, a six-jaw chuck induces less than half as much clamping distortion in a thin-walled workpiece, compared to a three-jawed chuck. Two-jaw chucks are available and can be used with soft jaws (typically an aluminium alloy) that can be machined to conform to a particular workpiece.
A grid coupling is composed of two shaft hubs, a metallic grid spring, and a split cover kit. Torque is transmitted between the two coupling shaft hubs through the metallic grid spring element. Like metallic gear and disc couplings, grid couplings have a high torque density. A benefit of grid couplings, over either gear or disc couplings, is ...
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