B | Backlash | The play that exists between the contacting surfaces of mechanical elements. Backlash is the cause of vibration. Backlash in roller gear and parallel cams can be eliminated by pre-loading. |
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Barrel Cam | A cylinder-shaped solid cam used to produce intermittent indexing and oscillating motions. | |
Bell Cam, End Cam | A cam that uses the end of its cylinder. | |
Bottom Dead Point | See Top Dead Point. |