A roller chain drive is to transmit a design power of 9.0 kWwith the faster shaft having a speed of 84 rpm. Select the mostsuitable chain size and type of lubrication from the followingoptions if the pinion has 15 teeth:
1 - Pitch of 25.4 mm, oil bath or disc lubrication,
2 - Pitch of 19 mm, drip feed lubrication,
3 - Pitch of 25.4 mm, drip feed lubrication,
4 - Pitch of 19 mm, drip feed lubrication,
