Bearing journals.
main journals
Main Journals
Main bearings
If you are referring to an internal combustion engine they are also called the 'big ends'. These are the bearings on the crankshaft and connecting rods, the bearings on the other end of the connecting rods are the 'small ends'.
That usually refers to the part of a standard transmission that inserts into the crankshaft pilot bearing or bushing.
ATLAS
The process is called Genetic Modification
Historically, Southerners who supported reconstruction were often called scalawags.
What were coloniests that supported the dependence called?
Oil pressure light has almost nothing to do with with the amount of oil in the crankcase. Oil pressure is affected by just a couple things, does the oil pump work, is the pickup screen blocked, have the main and/or rod bearings worn out and does the pressure bypass still work? Rod and main bearings are quite simple, they consist of a hardened crankshaft with carefully turned and polished contact surfaces and rod and main bearings which fit tightly to the crankshaft with no more than two thousandths of an inch clearance when the bearings are new. The contact surface of the bearing is made of a very soft metal called "babbit". Oil pressur keeps the babbit bearing surface from actually coming in contact with the crankshaft surface. If the babbit has worn and the bearing surface has worn to the point that the clearance has significantly increased, the oil will leak past the bearings and the pump will not be able to pump enough oil volume to keep the pressure up. In short, low oil pressure is one of the main indicators that an engine is worn out.
It is called thrust.
A testable explanation that is supported or refuted is called a hypothesis.