| 1. | The teeth on the belt keep the camshaft drive pulleys indexed.
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| 2. | At cruising speed, the drive pulley widens and acts like a high gear.
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| 3. | On acceleration, for instance, the drive pulley will have a narrow diameter for more torque, like a low gear.
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| 4. | External sources of shaft voltage include other coupled machines, and electrostatic charging due to rubber belts rubbing on drive pulleys.
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| 5. | The aircraft had been flying at when the drive pulley to the propeller drive-shaft bolts failed in flight, reversing propeller thrust.
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| 6. | Any Vee belt's ability to drive pulleys depends on wrapping the belt around a sufficient angle of the pulley to provide grip.
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| 7. | A belt conveyor system consists of two or more pulley is called the drive pulley while the unpowered pulley is called the idler pulley.
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| 8. | The engine was modified for the enclosed scooter by having a drive pulley on the crankshaft driving a fan by means of a Vee belt.
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| 9. | An unusual feature of this system is that it incorporates " floating " inlet cam drive pulleys that are not directly keyed to the shafts.
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| 10. | The ratio was changed by expanding and contracting the drive pulley, with a low ratio of approximately 18 : 1 and a high ratio of approximately 7 : 1.
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