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sprag

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sprag AUTO

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Recent improvements in design have replaced the ratchet (gear and pawl mechanism) with sprag clutches and disc brake assemblies. en.wikipedia.org

Most sprag clutch manufacturers do not allow the use of lubricants containing extreme pressure additives. en.wikipedia.org

A link is installed between the prime mover and one race of the sprag clutch. en.wikipedia.org

This sprag clutch was a forerunner to todays slipper clutches affording a slight amount of slip on overrun in the attempt to stop the back wheel from locking. en.wikipedia.org

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