{"product_id":"airtac-lsh25bk-hn-nd-m6-linear-guide-block-class-d-interchangeable-high-assembly-square-block","title":"AirTAC LSH25BK-HN-ND-M6 Linear Guide Block | Class D Interchangeable High Assembly Square Block","description":"\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_2dd023f1008d7d92\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003ch2\u003eModel: LSH25BK-HN-ND-M6\u003c\/h2\u003e\n\u003ch3\u003e1. Executive Summary\u003c\/h3\u003e\n\u003cp data-path-to-node=\"5\"\u003eThe \u003cb\u003eAirTAC LSH25BK-HN-ND-M6\u003c\/b\u003e is a high-precision interchangeable slider block from the LSH Heavy Load Linear Guide series. This model is specifically designed for modular assembly and the maintenance\/replacement market.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eThe \u003cb\u003e\"ND\"\u003c\/b\u003e combination in the code signifies that this block is equipped with \u003cb\u003eStandard Dust Protection (N)\u003c\/b\u003e. Furthermore, the block has undergone strict groove dimension screening to meet \u003cb\u003e\"Class D\" tolerance\u003c\/b\u003e requirements. This ensures that when purchased as a replacement or individual component, it maintains consistent preload and smoothness perfectly matched to existing rails requiring \"D\" group pairing.\u003c\/p\u003e\n\u003chr data-path-to-node=\"7\"\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=\"9\"\u003e\u003ci\u003ePlease pay special attention to the highlighted sections, as these are the core factors for selection:\u003c\/i\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb\u003eLSH:\u003c\/b\u003e \u003cb\u003eSeries Name\u003c\/b\u003e — High Assembly Type Linear Guide.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb\u003e25:\u003c\/b\u003e \u003cb\u003eSize Specification\u003c\/b\u003e — Nominal size 25mm (Actual rail width is approx. 23mm, conforming to industry standards).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb\u003eBK:\u003c\/b\u003e \u003cb\u003eBlock Type\u003c\/b\u003e — Square Standard\/Short Block.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb\u003eH:\u003c\/b\u003e \u003cb\u003eAccuracy Class\u003c\/b\u003e — Class H (High), meeting the precision positioning needs of automation equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,4,0\"\u003e\u003cb\u003eN:\u003c\/b\u003e \u003cb\u003ePreload Class\u003c\/b\u003e — N (Standard Preload\/No Preload).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,5,0\"\u003e\u003cb\u003eN:\u003c\/b\u003e \u003cb\u003eDust Protection Code\u003c\/b\u003e — Standard Dust Protection (N). Equipped with high wear-resistant end seals to effectively block dust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,6,0\"\u003e\u003cb\u003eD:\u003c\/b\u003e \u003cb\u003ePairing\/Interchange Code\u003c\/b\u003e — \u003cb\u003eGroup D Pairing.\u003c\/b\u003e\u003c\/p\u003e\n\u003cblockquote data-path-to-node=\"10,6,1\"\u003e\n\u003cp data-path-to-node=\"10,6,1,0\"\u003e\u003cb\u003eTechnical Core:\u003c\/b\u003e AirTAC categorizes the dimensional tolerance of blocks and rails into multiple groups (e.g., A, B, C, D, E). Group D represents a specific tolerance range. If your existing rail or engineering drawing specifies Group D, \u003cb\u003eyou must select a block with this code\u003c\/b\u003e. Failure to do so may result in the block being too tight (binding\/jamming) or too loose (wobbly).\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,7,0\"\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=\"11\"\u003e\n\u003ch3\u003e3. Key Features\u003c\/h3\u003e\n\u003cp\u003eA. Precise Interchangeability (ND)\u003c\/p\u003e\n\u003cp\u003eThe LSH25BK-HN-ND offers specific matching capabilities. In maintenance scenarios, blindly replacing blocks often leads to a drop in precision. Selecting the designated \"D\" group block maximizes the restoration of the equipment's original factory rigidity settings, making it the \"peace of mind\" choice for maintenance engineers.\u003c\/p\u003e\n\u003cp\u003eB. Standard Square Design\u003c\/p\u003e\n\u003cp\u003eAdopts a compact square body design (BK Type) without flange wings. This provides a significant advantage in equipment with limited lateral space (such as side-by-side manipulators or XYZ axis modules) while maintaining the overall rigidity required for heavy loads.\u003c\/p\u003e\n\u003cp\u003eC. 4-Direction Equal Load \u0026amp; Self-Alignment\u003c\/p\u003e\n\u003cp\u003eContinuing the LSH series' classic DF (face-to-face) 45-degree contact angle design, this block features self-alignment capabilities in all four directions (up, down, left, right). It effectively absorbs assembly errors from the mounting surface.\u003c\/p\u003e\n\u003chr data-path-to-node=\"16\"\u003e\n\u003cp data-path-to-node=\"17\"\u003e \u003c\/p\u003e\n\u003ch3\u003e4. Technical Specifications\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable data-path-to-node=\"18\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eValue\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=\"18,1,0,0\"\u003e\u003cb\u003eCompatible Rail\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,1,1,0\"\u003eLSH25 Rail\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,2,0,0\"\u003e\u003cb\u003eAssembly Height (H)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,2,1,0\"\u003e40 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,3,0,0\"\u003e\u003cb\u003eDynamic Load Rating (\u003cspan class=\"math-inline\" data-math=\"C\"\u003e$C$\u003c\/span\u003e)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,3,1,0\"\u003e~ 26.5 kN\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,4,0,0\"\u003e\u003cb\u003eStatic Load Rating (\u003cspan class=\"math-inline\" data-math=\"C_0\"\u003e$C_0$\u003c\/span\u003e)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,4,1,0\"\u003e~ 36.5 kN\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,5,0,0\"\u003e\u003cb\u003eLubrication Port\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,5,1,0\"\u003eM6 Thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,6,0,0\"\u003e\u003cb\u003eMaterial\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,6,1,0\"\u003eGCr (Bearing Steel)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,7,0,0\"\u003e\u003cb\u003eMounting Hole Pitch\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,7,1,0\"\u003e\u003ci\u003e(Value incomplete in source)\u003c\/i\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,8,0,0\"\u003e\u003cb\u003eBlock Width\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"18,8,1,0\"\u003e\u003ci\u003e(Value incomplete in source)\u003c\/i\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr data-path-to-node=\"19\"\u003e\n\u003cp data-path-to-node=\"20\"\u003e \u003c\/p\u003e\n\u003ch3\u003e5. Target Applications\u003c\/h3\u003e\n\u003cp data-path-to-node=\"21\"\u003eThe \u003cb\u003eLSH25BK-HN-ND-M6\u003c\/b\u003e is particularly suitable for the following \"Aftermarket\" or \"Precision Matching\" scenarios:\u003c\/p\u003e\n\u003cul data-path-to-node=\"22\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"22,0,0\"\u003e\u003cb\u003eTargeted Equipment Maintenance:\u003c\/b\u003e Used to replace damaged original AirTAC \"Group D\" blocks to quickly restore production.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"22,1,0\"\u003e\u003cb\u003eHigh-Precision Module Assembly:\u003c\/b\u003e In multi-axis manipulators, using blocks from the same pairing group (Group D) ensures consistent running resistance across multiple guideways.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e","brand":"AirTAC","offers":[{"title":"Default Title","offer_id":51712120258841,"sku":null,"price":77.33,"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-lsh25bk-hn-nd-m6-linear-guide-block-class-d-interchangeable-high-assembly-square-block","provider":"AirTAC Shop","version":"1.0","type":"link"}