In a basic Uhing set up, the Uhing shaft is driven via a belt & pulley system linking the Uhing shaft to the take up spool shaft. The gear ratio refers to the size relationship of the pulley wheels in this linkage. If the wheels are the same size (1:1) then the drive's maximum pitch will be as listed in the brochure.
If the gear ratio is greater than 1, the pulley wheel on the Uhing shaft will be larger than the wheel on the spool shaft and the Uhing shaft will turn slower than the spool shaft. If the gear ratio is less than 1, the pulley wheel of the Uhing shaft will be smaller than the wheel on the spool shaft and the Uhing shaft will rotate faster than the spool shaft. Correct gear ratio and shaft speed is required in order to assure that the linear movement of the Uhing drive stays in synch with the rotation of the spool.
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