Quote:
Originally Posted by NeilBlanchard
The start/stop systems I have read about use the alternator as the starter; or a belt driven starter. No solenoid and no pinion gear and no ring gear.
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But belt-driven starters cause a crank bearing reaction too. The belt tension is converted to two reactions: torque (tension * crank pulley radius), and a bearing reaction, equal and opposite to the belt tension.
Coaxial electric motors, like on the Insight and the Prius, only exert torque on the crankshaft, not radial bearing load.
