기어 구매

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M : 모듈러스 ( 원주 / 잇수) 

D : 외경

d : 내경

T : 잇수

Ref.

http://www.seoulgear.com/bbs/board.php?bo_table=data&wr_id=7&page=2

키워드 : 0.5M 20T gear , precision small modulus spur gear

http://www.ebay.com/itm/261655862193?var=560525417949

http://www.ebay.com/itm/1pcs-Metal-Gear-0-5M-20T-M3-aperture-Special-45-steel-gear-For-N20-gear-motor-/161758256954?hash=item25a98b1f3a

http://www.aliexpress.com/item/3pcs-wholesale-0-5M-20Teeths-aluminum-alloy-precision-small-modulus-spur-gear-Hole-d-3mm/32315505318.html

http://www.aliexpress.com/item/2pcs-freeshipping-0-5M-40Teeths-aluminum-alloy-precision-model-micro-motor-DIY-small-modulus-gear-Hole/32315497591.html

http://www.aliexpress.com/item/2pcs-freeshipping-0-5M-80Teeths-aluminum-alloy-precision-small-modulus-spur-gear-Hole-d-3mm/32316719059.html

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