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2. Spindle oil - Wikipedia

   en.wikipedia.org/wiki/Spindle_oil

   Spindle oils are a type of low-viscosity mineral oil marketed for use in lubrication of high-speed machine spindles. [1] Spindle oil is free from gumming properties. [2] Since the viscosity is so low that the oil runs off the surface of the spindle during shut-down periods, the spindle oil may be doped with additives that prevent rusting.

3. Shaft (mechanical engineering) - Wikipedia

   en.wikipedia.org/wiki/Shaft_(mechanical_engineering)

   The following stresses are induced in the shafts. Shear stresses due to the transmission of torque (due to torsional load). Bending stresses (tensile or compressive) due to the forces acting upon the machine elements like gears and pulleys as well as the self weight of the shaft. Stresses due to combined torsional and bending loads.

4. Crankshaft - Wikipedia

   en.wikipedia.org/wiki/Crankshaft

   The distance between the axis of the crankpins and the axis of the crankshaft determines the stroke length of the engine. [1] Most modern car engines are classified as "over square" or short-stroke, [citation needed] wherein the stroke is less than the diameter of the cylinder bore. A common way to increase the low-RPM torque of an engine is to ...

5. Balance shaft - Wikipedia

   en.wikipedia.org/wiki/Balance_shaft

   The operating principle of a balance shaft system is that two shafts carrying identical eccentric weights rotate in opposite directions at twice the engine speed. The phasing of the shafts is such that the centrifugal forces produced by the weights cancel the vertical second-order forces (at twice the engine RPM) produced by the engine. [3]

6. Drive shaft - Wikipedia

   en.wikipedia.org/wiki/Drive_shaft

   In this case the drive shaft rotates continuously with the engine, even when the car is stationary and out of gear. However, the Porsche 924/944/928 models have the clutch mounted to the back of the engine in a bell housing and the drive shaft from the clutch output, located inside of a hollow protective torque tube, transfers power to the rear ...

7. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   An oil pump, a vane or gear pump powered by the engine, pumps the oil throughout the engine, including the oil filter. Oil filters can be a full flow or bypass type. In the crankcase of a vehicle engine, motor oil lubricates rotating or sliding surfaces between the crankshaft journal bearings (main bearings and big-end bearings) and rods ...