| OLblKuMkvmETgTjqzgwj |
| 조회 : 409 작성자 : affordable car insur [ mx18lqayy@outlook.com ] [ http://flightn9ne.com/FL/Deltona/affordable-car-insurance/ ] |
| That is about a 32 to 1 reduction on that gear, I seem to remember it being called a 'Worm and Gear"You turn the worm 32 times to get one revolution on the gear to raise the sluice gate, this makes it easy to lift the gate.I used to work with gear boxes in my workHave a look at my PennyFarthing |
| 작성일자 : 2019년 04월 19일 |
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