Unverified85% confidenceDecision RuleTime unknown
钢珠导轨（钢珠滑轨）承重通常达25-45kg且顺滑度高，适合放重物或高频开合；塑料滚轮导轨承重多在15kg以内，长期使用易卡顿变形，选购时优先钢珠导轨
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85%
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Long-term
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