{"product_id":"airtac-lsh20bk-hn-n-d-m6-linear-guide-block-d-class-interchangeable-20mm-compact-high-precision-block","title":"AirTAC LSH20BK-HN-N-D-M6 Linear Guide Block | D-Class Interchangeable 20mm Compact High-Precision Block","description":"\u003ch2\u003eModel: LSH20BK HN N D M6\u003c\/h2\u003e\n\u003ch3\u003e1. Executive Summary\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe \u003cb\u003eAirTAC LSH20BK-HN-N-D-M6\u003c\/b\u003e is a \u003cb\u003eGroup D interchangeable\u003c\/b\u003e square block of the 20mm size from the LSH Linear Guide series.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eIt combines the \u003cb\u003e20mm compact size\u003c\/b\u003e, the \u003cb\u003eBK square narrow-body design\u003c\/b\u003e, and \u003cb\u003eGroup D precision pairing tolerance\u003c\/b\u003e. This means it not only saves installation space but also ensures a perfect preload match when replacing a block on an existing rail (Group D), preventing stuttering or looseness caused by tolerance mismatch. It is an ideal choice for the maintenance and modular assembly of high-precision automation equipment.\u003c\/p\u003e\n\u003chr data-path-to-node=\"6\"\u003e\n\u003ch3\u003e2. Model Code Decoding\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0958\/2225\/0265\/files\/WX20251128-165006_2x_af2d08ec-2ecb-4595-840a-fc009792d16a.png?v=1764319846\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003ci\u003e\u003cmeta charset=\"utf-8\"\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0068\/3235\/7429\/files\/Airtac_LSH_Series_Linear_Guide.pdf?v=1689092996\" target=\"_blank\"\u003eClick to download the catalog\u003c\/a\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003ci\u003eHighlighted Difference: Please pay special attention to the \u003cb\u003eD\u003c\/b\u003e code.\u003c\/i\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb\u003eLSH:\u003c\/b\u003e \u003cb\u003eSeries Name\u003c\/b\u003e — High Assembly Standard Linear Guide.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb\u003e20:\u003c\/b\u003e \u003cb\u003eSize Specification\u003c\/b\u003e — Nominal rail width 20mm.\u003c\/p\u003e\n\u003cul data-path-to-node=\"9,1,1\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,1,0,0\"\u003e\u003ci\u003ePositioning:\u003c\/i\u003e Lightweight, low assembly height (30mm), suitable for small and medium-sized equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb\u003eBK:\u003c\/b\u003e \u003cb\u003eBlock Type\u003c\/b\u003e — Square Block.\u003c\/p\u003e\n\u003cul data-path-to-node=\"9,2,1\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,1,0,0\"\u003e\u003ci\u003eFeature:\u003c\/i\u003e Flange-less (no side wings), width is only 44mm, suitable for installations with restricted lateral space.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,1,1,0\"\u003e\u003ci\u003eMounting:\u003c\/i\u003e Threaded blind-hole design; screws are locked into the block from above.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb\u003eHN:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"9,3,1\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,1,0,0\"\u003e\u003cb\u003eH:\u003c\/b\u003e \u003cb\u003eAccuracy Class\u003c\/b\u003e — Class H (High).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,1,1,0\"\u003e\u003cb\u003eN:\u003c\/b\u003e \u003cb\u003ePreload Class\u003c\/b\u003e — N (Standard Preload\/No Preload), light load, low resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,4,0\"\u003e\u003cb\u003eN:\u003c\/b\u003e \u003cb\u003eDust Protection Code\u003c\/b\u003e — Standard Dust Protection (end seals).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,5,0\"\u003e\u003cb\u003eD:\u003c\/b\u003e \u003cb\u003ePairing\/Interchange Code\u003c\/b\u003e — \u003cb\u003eGroup D Pairing.\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"9,5,1\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,5,1,0,0\"\u003e\u003ci\u003eCore Value:\u003c\/i\u003e This indicates the block groove dimensions have been strictly screened and belong to the \u003cb\u003eD tolerance group\u003c\/b\u003e. When maintaining or purchasing a block separately, specifying \"D\" ensures a perfect match with your existing \"D\" group rail, restoring the original factory operating feel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,6,0\"\u003e\u003cb\u003eM6:\u003c\/b\u003e \u003cb\u003eGrease Nipple Spec\u003c\/b\u003e — Standard M6 threaded oil nipple connector.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"10\"\u003e\n\u003ch3\u003e3. Core Technical Advantages\u003c\/h3\u003e\n\u003cp\u003eA. Group D Precision Interchangeability\u003c\/p\u003e\n\u003cp\u003eBlindly replacing blocks is a common mistake in aftermarket maintenance. The LSH20BK-...-D clearly specifies the tolerance group. Compared to standard generic parts shipped randomly, the Group D block ensures that after replacement, not only does the size fit, but even the sliding resistance (friction) remains consistent with the original part.\u003c\/p\u003e\n\u003cp\u003eB. 20mm Square Compact Body\u003c\/p\u003e\n\u003cp\u003eThis model's width is only 44mm, and the combined height is only 30mm. This \"tall and thin\" square design is advantageous over wider flange types in applications like XYZ axis modules with multiple parallel rails or 3C bonding equipment where internal space is extremely restricted.\u003c\/p\u003e\n\u003cp\u003eC. High-Rigidity Four-Row Ball Design\u003c\/p\u003e\n\u003cp\u003eDespite its small size (20mm), the internal structure still utilizes the signature LSH series design of 4 rows of ball bearings and a 45-degree contact angle. This means its rigidity under moment loads is far superior to that of double-row (miniature) guides of the same size, making it resistant to deformation.\u003c\/p\u003e\n\u003cp\u003eD. Universal Replaceability\u003c\/p\u003e\n\u003cp\u003eDimensions strictly comply with international standards.\u003c\/p\u003e\n\u003cul data-path-to-node=\"16\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,0,0\"\u003e\u003ci\u003ePerfect Alternatives:\u003c\/i\u003e Directly replaces \u003cb\u003eHIWIN HGH20CA\u003c\/b\u003e, \u003cb\u003eTHK HSR20B\u003c\/b\u003e, \u003cb\u003ePMI MSA20S\u003c\/b\u003e, etc. (must confirm it is the square standard type).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"17\"\u003e\n\u003ch3\u003e4. Technical Specifications\u003c\/h3\u003e\n\u003cp data-path-to-node=\"19\"\u003e\u003ci\u003ePlease note the distinction from the 25mm size:\u003c\/i\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"20\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNote\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,1,0,0\"\u003e\u003cb\u003eCompatible Rail\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,1,1,0\"\u003eAirTAC LSH20 Series Rail (20mm width)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,2,0,0\"\u003e\u003cb\u003eBlock Width (W)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,2,1,0\"\u003e\u003cb\u003e44 mm\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,2,2,0\"\u003e(Flange-less, straight-edge design)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,3,0,0\"\u003e\u003cb\u003eAssembly Height (H)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,3,1,0\"\u003e\u003cb\u003e30 mm\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,3,2,0\"\u003e(Bottom of rail to top of block)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,4,0,0\"\u003e\u003cb\u003eMounting Hole Pitch\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,4,1,0\"\u003e\u003cb\u003e36 mm (Width) x 32 mm (Length)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,4,2,0\"\u003eRectangular hole pattern. (Note: LSH25 uses 35x35mm square pitch).\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,5,0,0\"\u003e\u003cb\u003eMounting Hole Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,5,1,0\"\u003e4 x \u003cb\u003eM5 Threaded Blind Holes\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,6,0,0\"\u003e\u003cb\u003eDynamic Load (\u003cspan data-math=\"C\" class=\"math-inline\"\u003e$C$\u003c\/span\u003e)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,6,1,0\"\u003eApprox. 17.7 kN\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,7,0,0\"\u003e\u003cb\u003eStatic Load (\u003cspan data-math=\"C_0\" class=\"math-inline\"\u003e$C_0$\u003c\/span\u003e)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"20,7,1,0\"\u003eApprox. 27.7 kN\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr data-path-to-node=\"21\"\u003e\n\u003ch3\u003e5. Target Applications\u003c\/h3\u003e\n\u003cp data-path-to-node=\"23\"\u003eThe \u003cb\u003eLSH20BK-HN-N-D-M6\u003c\/b\u003e is designed for precise maintenance and compact design in the following scenarios:\u003c\/p\u003e\n\u003cul data-path-to-node=\"24\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"24,0,0\"\u003e\u003cb\u003eAutomation Line Maintenance:\u003c\/b\u003e Replacing worn original AirTAC blocks, using the \"D\" pairing code to quickly restore the production line's precision.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"24,1,0\"\u003e\u003cb\u003eElectronic Assembly Equipment:\u003c\/b\u003e Z-axis lifting mechanisms for mobile phone camera assembly and screen dispensing machines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"24,2,0\"\u003e\u003cb\u003eSmall Linear Modules:\u003c\/b\u003e Used to build electric slides with limited width.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"24,3,0\"\u003e\u003cb\u003eMedical Testing Instruments:\u003c\/b\u003e Sample transfer arms in blood analyzers (requiring low noise and low resistance).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AirTAC","offers":[{"title":"Default Title","offer_id":51717252841753,"sku":null,"price":62.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2225\/0265\/files\/WX20251125-221049_2x_61225840-8cbe-43b3-a87c-83cc7c46ed3d.png?v=1764079984","url":"https:\/\/airtac-shop.com\/products\/airtac-lsh20bk-hn-n-d-m6-linear-guide-block-d-class-interchangeable-20mm-compact-high-precision-block","provider":"AirTAC Shop","version":"1.0","type":"link"}