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The BMW Range
3 Series
E90, E91, E92, E93
Door lock story
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<blockquote data-quote="Schwepps" data-source="post: 444211" data-attributes="member: 3592"><p>No lar... Poor BMW! Most actuator movements in such applications are of plastics such as nylon and delrin. The advantages over metal sprockets and worm gears are many: light-weight, shock-proof, wear resistant, heat resistant, corrosion-proof, noiseless, and require less force to operate. A car with completely metal moving parts would be clanging all over the place as it plods along. Pound for pound, these plastics are stronger than brass or steel.</p></blockquote><p></p>
[QUOTE="Schwepps, post: 444211, member: 3592"] No lar... Poor BMW! Most actuator movements in such applications are of plastics such as nylon and delrin. The advantages over metal sprockets and worm gears are many: light-weight, shock-proof, wear resistant, heat resistant, corrosion-proof, noiseless, and require less force to operate. A car with completely metal moving parts would be clanging all over the place as it plods along. Pound for pound, these plastics are stronger than brass or steel. [/QUOTE]
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The BMW Range
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Door lock story
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