{"id":1121,"date":"2026-04-03T16:33:40","date_gmt":"2026-04-03T08:33:40","guid":{"rendered":"https:\/\/lqcncparts.com\/?post_type=news&p=1121"},"modified":"2026-04-03T16:33:40","modified_gmt":"2026-04-03T08:33:40","slug":"%d9%8a%d8%ad%d8%b3%d9%85-%d8%a7%d9%84%d8%b4%d8%b9%d9%88%d8%b1-%d8%a7%d9%84%d9%8a%d8%af%d9%88%d9%8a-%d8%a7%d9%84%d8%a5%d8%b1%d8%b4%d8%a7%d8%af%d9%8a-%d8%a7%d9%84%d8%ae%d8%b7%d9%8a-%d9%83%d9%84-%d8%b4","status":"publish","type":"news","link":"https:\/\/lqcncparts.com\/ar\/%d8%a7%d9%84%d8%a3%d8%ae%d8%a8%d8%a7%d8%b1\/%d9%8a%d8%ad%d8%b3%d9%85-%d8%a7%d9%84%d8%b4%d8%b9%d9%88%d8%b1-%d8%a7%d9%84%d9%8a%d8%af%d9%88%d9%8a-%d8%a7%d9%84%d8%a5%d8%b1%d8%b4%d8%a7%d8%af%d9%8a-%d8%a7%d9%84%d8%ae%d8%b7%d9%8a-%d9%83%d9%84-%d8%b4\/","title":{"rendered":"\u0627\u0644\u062f\u0644\u064a\u0644 \u0627\u0644\u062e\u0637\u064a \u201c\u0627\u0644\u0625\u062d\u0633\u0627\u0633 \u0628\u0627\u0644\u064a\u062f\u201d \u064a\u0642\u0631\u0631 \u0643\u0644 \u0634\u064a\u0621: \u0643\u064a\u0641 \u062a\u0624\u062b\u0631 \u0627\u0644\u062f\u0642\u0629 \u0648\u0627\u0644\u0636\u0648\u0636\u0627\u0621 \u0648\u0627\u0644\u0633\u0644\u0627\u0633\u0629 \u0639\u0644\u0649 \u0645\u0639\u062f\u0644 \u0625\u0646\u062a\u0627\u062c\u064a\u0629 \u0627\u0644\u0645\u0639\u062f\u0627\u062a \u0628\u0639\u062f 3 \u0633\u0646\u0648\u0627\u062a"},"content":{"rendered":"
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Introduction:<\/strong><\/p>\n

Why do some guide rails feel extremely smooth when first installed but start making noise after three months of operation? Why do two products both labeled as P-grade precision produce workpieces with inconsistent dimensions?<\/p>\n

Precision is the appearance, noise is the emotion, and smoothness is the constitution.<\/strong>\u00a0In the selection of linear guides, these three indicators determine whether your next piece of equipment will be a “cash cow” or a “source of complaints.” This article cuts through the fluff and gets straight to the tactile and auditory truth of guide rails.<\/p>\n<\/div>\n<\/div>\n

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1. Precision: Look Beyond the “Number” \u2014 Focus on “Retention”<\/strong><\/p>\n

Many customers focus only on the “running parallelism” shown in the catalog, but overlook\u00a0precision life<\/strong>\u00a0\u2014 that is, the increase in clearance after 100,000 cycles.<\/p>\n

Static precision (initial):<\/strong>\u00a0We guarantee a minimum of\u00a0P3 (ultra-precision) grade<\/strong>, with block running parallelism controlled within\u00a02.5\u03bcm\/100mm<\/strong>\u00a0(equivalent to 1\/30 the thickness of a human hair).<\/p>\n

Dynamic precision retention (core):<\/strong>\u00a0Using a\u00a04-direction equal load design<\/strong>, clearance is eliminated through preload. After\u00a02,000 hours<\/strong>\u00a0of full-load running-in, the repeatability accuracy decay rate is\u00a0\u2264 8%<\/strong>.<\/p>\n

As a manufacturer with 18 years of experience, Jinan Longqiao Electromechanical Equipment Co., Ltd.<\/strong><\/a>. has earned recognition from many customers. Buyers consistently regard us as a provider of\u00a0high-precision linear rails with low noise<\/strong>.<\/p>\n

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2. Noise: From “Screaming” to “Whispering” \u2014 It Reveals the Raceway Grinding Process<\/strong><\/p>\n

Noise not only affects the perceived quality of the equipment but is also a precursor to micro-cracks on the raceway surface and failure of ball roundness. In anechoic chamber tests, inferior guide rails often produce high-frequency squealing during operation.<\/p>\n

Silence standard:<\/strong>\u00a0At a no-load speed of 1 m\/s, our measured noise level is\u00a0\u2264 58 dB(A)<\/strong>\u00a0(quieter than a typical keyboard click).<\/p>\n

Frequency response analysis:<\/strong>\u00a0Using an\u00a0FFT (Fast Fourier Transform)<\/strong>\u00a0spectrum analyzer, abnormal frequencies are eliminated, ensuring that the raceway surface roughness\u00a0Ra \u2264 0.05\u03bcm<\/strong>, making the contact vibration between the balls and the raceway nearly imperceptible.<\/p>\n

Sourcing advice:<\/strong>\u00a0When selecting a product, don’t just listen to the motor running. Push the block manually and listen for any “scratching” or “grinding” sound \u2014 that is direct evidence that the raceway has not been super-finished.<\/p>\n<\/div>\n

3. Smoothness: Overcoming the “Stick-Slip” Phenomenon and Achieving Fluid-Like Constant Velocity Motion<\/strong><\/p>\n

Smoothness does not equal low friction. True smoothness refers to the\u00a0uniformity of friction<\/strong>\u00a0\u2014 no “step-by-step” granular sensation, and no “adhesive jump” at the moment of startup (i.e., the stick-slip phenomenon).<\/p>\n

Kinetic friction uniformity:<\/strong>\u00a0Under light preload, the friction force fluctuation over the entire travel is\u00a0\u2264 3%<\/strong>. When you push the block with a single finger, you will not feel any sudden change in resistance.<\/p>\n

Starting torque:<\/strong>\u00a0We have optimized the\u00a0end cap (circulator)<\/strong>\u00a0design, keeping the difference between starting torque and dynamic torque within\u00a00.5 N\u00b7cm<\/strong>, completely eliminating the “nodding” phenomenon during micro-feed motion.<\/p>\n<\/div>\n

Sourcing advice:<\/strong>\u00a0Place the guide rail vertically. The block should slide down slowly and smoothly under its own weight without sticking. If it requires tapping to fall, there is a design flaw in the internal ball circulation system.<\/p>\n<\/div>\n

here\uff0cI’m in \u0625\u0646\u0633\u062a\u0642\u0631\u0627\u0645<\/a> and Facebook<\/a>\u00a0 Shared a video<\/b><\/strong><\/p>\n

Click on the details below to obtain more data<\/p>\n

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Details<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Introduction: Why do some guide rails feel extremely smooth when first installed but start making noise after three months of operation? Why do two products both labeled as P-grade precision produce workpieces with inconsistent dimensions? Precision is the appearance, noise is the emotion, and smoothness is the constitution.\u00a0In the selection of linear guides, these three […]<\/p>\n","protected":false},"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","class_list":["post-1121","news","type-news","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/lqcncparts.com\/ar\/wp-json\/wp\/v2\/news\/1121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lqcncparts.com\/ar\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/lqcncparts.com\/ar\/wp-json\/wp\/v2\/types\/news"}],"replies":[{"embeddable":true,"href":"https:\/\/lqcncparts.com\/ar\/wp-json\/wp\/v2\/comments?post=1121"}],"wp:attachment":[{"href":"https:\/\/lqcncparts.com\/ar\/wp-json\/wp\/v2\/media?parent=1121"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}