Engine_2014 : Electricity - 1384/2299
|
|---|
| « Previous Question |
| What can cause premature failure of grease-lubricated ball bearings as used in electric motor applications? |
| A) failure to warm up an electric motor at no load before bringing it up to operating speed and load |
| B) failure to maintain proper shaft or pulley alignment or drive belt tension as applicable |
| C) greasing the bearing so that the bearing cavity is only one third full |
| D) greasing the bearing at periodic intervals as specified by the manufacturer |
loading answer...
| Comments |
|---|
| There are no comments for this question. |