gear case

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gear case

[′gir ‚kās]
(mechanical engineering)
An enclosure, usually filled with lubricating fluid, in which gears operate.
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The gaging system allows difficult, critical, internal gearcase dimensions to be taken quickly and accurately by the operator.
Whereas flexible inspection--like CMMs--work best at measuring prismatic surfaces and checking hole position, Musich's plant prefers dedicated gages for inspecting bore sizes and internal geometry, because "these features are far more likely to change in machining a gearcase than is hole position.
This thinking led to the use of plug gages as the first test of gearcase conformity.
After the fit test with plug gages, the operator uses transducer spindle gages and electronic columns to determine dimensions and tolerances for gearcase features.
In gearcases, where cylindricity is critical, averaging systems could show a part in spec and miss a bore taper or out-of-roundness condition.
Tenders are invited for Gearcase Complete Top And Bottom For Siemens T.
New features include heavy duty row unit gearcases, larger gathering chains, a larger diameter cross auger, a deep-angle auger trough, dual-auger strippers, opposed knife or flute stalk rolls, optional stalk-chopping gearcases, heavy-duty row unit drives, easy-adjust points, easy-access deck covers and end fenders, an integrated end fender ear saver, heavy duty modular main frame, and easy-access clean-out doors in the auger trough.
Cooling hoses, crankshafts, pistons, flywheels, gearcases of all types, electrical components, manifold assemblies.