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Login with my Xometry account Resistant material for small gear system
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Looking for the best material for a locking mechanism for an electric vehicle charging connector. Essentially a small gear system that engages to prevent unplugging during charging. The gear teeth are low-load but need to resist wear from frequent cycles (5,000+ lock/unlock operations) and tolerate some outdoor exposure (moisture, temperature variation, occasional dirt). I’m weighing options between reinforced polymers (like PA6 with GF) and metal (like sintered steel or aluminum), but I’m concerned about balancing noise, lubrication, and longevity. Any advice?
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