for lack of lubricant
11Gear — For the gear like device used to drive a roller chain, see Sprocket. This article is about mechanical gears. For other uses, see Gear (disambiguation). Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating… …
12Mineral oil — For crude oil found in geological deposits, see Petroleum. Bottle of mineral oil as sold in the U.S. A mineral oil is any of various colorless, odorless, light mixtures of alkanes in the C15 to C40 range from a non vegetable (mineral) source,… …
13Salamander — For other uses, see Salamander (disambiguation). Salamanders Temporal range: Jurassic–present …
14Emu — For other uses, see Emu (disambiguation). Emu Temporal range: Paleocene–present …
15First aid kit — For other uses, see First aid kit (disambiguation). Large and small first aid kits used by the British Red Cross for event first aid, in the internationally recognised ISO green with a white cross. These kits also feature the red cross which is a …
16lubrication — See lubricate. * * * Introduction of any of various substances between sliding surfaces to reduce wear and friction. Lubricants may secondarily control corrosion, regulate temperature, electrically insulate, remove contaminants, or damp shock.… …
17Rotating locomotion in living systems — A passive wheel Rotating locomotion encompasses two distinct modes of …
18Rolling-element bearing — A rolling element bearing is a bearing which carries a load by placing round elements between the two pieces. The relative motion of the pieces causes the round elements to roll with very little rolling resistance and with little sliding.One of… …
19Forging — This article is about the metalworking process. For specific hot forging hearth, see forge. For the act of counterfeiting, see forgery. Hot metal ingot being loaded into a hammer forge Forging is a manufacturing process involving the shaping of… …
20Graves' disease — Classification and external resources Photo showing the classic finding of proptosis and lid retraction in Graves disease ICD 10 …
