The GPM MG5017TS is a 17-tooth pinion made from durable 20Cr steel and finished with a black hardening treatment to resist wear and extend service life. Its construction delivers better transmission efficiency than stock gears while remaining compatible with motors that use a 1.0mm module and a 5mm motor tooth diameter. The gear mounts with a round hole and two 4x4 set screws for a secure fit in demanding use.
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