Q: Is a plain bearing a shaft rotating in a hole? ¶
A: Yes.
Q: Are plain bearings low weight? ¶
A: Yes, and corrosion resistant, and maintenance free.
Q: Are plain bearings possible today? ¶
A: Yes.
Q: Are plain bearings complicated by the wide range? ¶
A: Yes, and non-linearity, of coefficient of thermal expansion.
Q: Is a plain bearing not designed to run in the dry or boundary condition? ¶
A: Yes, and it has a high coefficient of friction and wears out.
Q: Are plain bearings built into the object of use as a hole prepared in the bearing surface? ¶
A: Yes.
Q: Are plain bearings now increasingly popular due to dry-running lubrication-free behavior? ¶
A: Yes.
Q: Is a plain bearing the hinge? ¶
A: Yes, and which is both a thrust bearing and a journal bearing.