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A gear case, also known as a chain case or chainguard, is an enclosure for the bicycle chain and sprocket assemblages commonly employed by utility bicycles. It serves to protect the cyclist from being soiled or trapped in the chain rings and tends to fully enclose the drive train. It may also contain an oil bath to keep the chain lubricated.
Dana Super 60 from a 2008 Ford F-450. The Dana Super 60 is an upgraded version of the Dana 60 axle. Differences in the Dana Super 60 versus the regular Dana 60: Larger and thicker diameter steel tubes (3.75 inches diameter and ½ in thick) Larger ring and pinion which increase the contact area and overall strength.
The adjustable grip hitch is a simple and useful friction hitch which may easily be shifted up and down the rope while slack. It will hold fast when loaded, but slip when shock loaded until tension is relieved enough for it to again hold fast. It serves the same purpose as the taut-line hitch, e.g. tensioning a tent's guy line.
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The chain has to be properly matched to the guide bar and the saw. Chainsaw manufacturers specify a selection of suitable chains for each model of saw. Best safety requires that the chain is properly sharpened. One key sharpening parameter is the depth gauge setting. The depth gauge is the small steel protubera
Rigid chain actuators were developed from “chain rammers” that used a single “ram chain” thrust from a magazine to load heavy-caliber ordnance into the breech of a cannon. Robert Matthews received a US patent for his “Mechanical Rammer” in 1901 which used a roller on the leading end of the chain to guide it and allow thrust without ...
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The primary benefit of the three-point hitch system is to transfer the weight and resistance of an implement to the drive wheels of the tractor. This gives the tractor more usable traction than it would otherwise have, given the same power , weight , and fuel consumption.