{"product_id":"thk-hsr55a1ss-linear-motion-guide-block","title":"THK HSR55A1SS LINEAR MOTION GUIDE BLOCK","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:d1def498-0850-425e-b960-8dc742a455ff-72\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:d1def498-0850-425e-b960-8dc742a455ff-72\" data-turn-id-container=\"request-WEB:d1def498-0850-425e-b960-8dc742a455ff-72\" data-testid=\"conversation-turn-146\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"a4069626-a74b-42a5-8123-3fa98e1d26e7\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"streaming-animation markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"911\"\u003eThe THK HSR55A1SS Linear Guide is a heavy-duty flange-type recirculating ball linear bearing block designed for use with THK HSR55 series linear guide rails in high-load, high-precision linear motion systems. Featuring the HSR55A flange configuration with threaded mounting holes and an SS sealing arrangement, this bearing block delivers smooth low-friction movement, exceptional rigidity, and four-way equal load capability for reliable positioning accuracy in demanding industrial applications. Commonly installed in CNC machining centers, industrial robots, semiconductor manufacturing equipment, automated production lines, heavy material handling systems, and precision inspection machines, this linear guide block is used by maintenance teams, OEM machine builders, and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e for equipment repair, retrofit, expansion, and replacement. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"913\" data-end=\"930\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"932\" data-end=\"1511\"\u003eThe THK HSR55A1SS is widely used in CNC milling machines, machining centers, gantry systems, robotic automation, semiconductor manufacturing equipment, packaging machinery, heavy-duty factory automation systems, precision measuring equipment, and material handling equipment. Its flange-type carriage with threaded mounting holes provides superior rigidity, high load capacity, and stable linear motion for applications requiring accurate positioning, excellent moment resistance, and long service life under continuous industrial operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1513\" data-end=\"1542\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1544\" data-end=\"2613\"\u003e• Manufacturer Part Number (MPN): HSR55A1SS\u003cbr data-start=\"1587\" data-end=\"1590\"\u003e• Manufacturer: THK Ltd.\u003cbr data-start=\"1614\" data-end=\"1617\"\u003e• Product Type: Linear Motion Guide Block\u003cbr data-start=\"1658\" data-end=\"1661\"\u003e• Series: HSR Global Standard LM Guide\u003cbr data-start=\"1699\" data-end=\"1702\"\u003e• Block Type: A (Flange Type, Threaded Mounting Holes)\u003cbr data-start=\"1756\" data-end=\"1759\"\u003e• Guide Type: Four-Row Recirculating Ball Linear Motion Guide\u003cbr data-start=\"1820\" data-end=\"1823\"\u003e• Compatible Rail Size: 55 mm\u003cbr data-start=\"1852\" data-end=\"1855\"\u003e• Overall Height (M): 70 mm\u003cbr data-start=\"1882\" data-end=\"1885\"\u003e• Block Width (W): 140 mm\u003cbr data-start=\"1910\" data-end=\"1913\"\u003e• Overall Length (L): 163 mm\u003cbr data-start=\"1941\" data-end=\"1944\"\u003e• Mounting Hole Spacing (B × C): 116 × 95 mm\u003cbr data-start=\"1988\" data-end=\"1991\"\u003e• Mounting Thread: M14\u003cbr data-start=\"2013\" data-end=\"2016\"\u003e• Compatible Rail Width: 53 mm\u003cbr data-start=\"2046\" data-end=\"2049\"\u003e• Rail Height: 44 mm\u003cbr data-start=\"2069\" data-end=\"2072\"\u003e• Rail Mounting Hole Pitch: 120 mm\u003cbr data-start=\"2106\" data-end=\"2109\"\u003e• Dynamic Load Rating: 121 kN\u003cbr data-start=\"2138\" data-end=\"2141\"\u003e• Static Load Rating: 146 kN\u003cbr data-start=\"2169\" data-end=\"2172\"\u003e• Grease Nipple: B-PT1\/8\u003cbr data-start=\"2196\" data-end=\"2199\"\u003e• Block Weight: Approximately 4.5 kg\u003cbr data-start=\"2235\" data-end=\"2238\"\u003e• Material: Hardened Bearing Steel\u003cbr data-start=\"2272\" data-end=\"2275\"\u003e• Seals: SS (End Seal, Side Seal, and Inner Seal)\u003cbr data-start=\"2324\" data-end=\"2327\"\u003e• Lubrication: Grease or Oil Lubrication\u003cbr data-start=\"2367\" data-end=\"2370\"\u003e• Features: Four-way equal load design, flange-type carriage with threaded mounting holes, precision-ground raceways, self-aligning capability, high rigidity, low-friction operation, and long service life. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2615\" data-end=\"2639\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2641\" data-end=\"2733\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• THK HSR55A1UU\u003cbr data-start=\"2656\" data-end=\"2659\"\u003e• THK HSR55A1SSC1\u003cbr data-start=\"2676\" data-end=\"2679\"\u003e• THK HSR55HA1SS\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"THK","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51713986658606,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_dacd7e7a-b62c-460c-adab-747cc1c03b3b.jpg?v=1770413038","url":"https:\/\/plgautomation.com\/products\/thk-hsr55a1ss-linear-motion-guide-block","provider":"PLG Automation ","version":"1.0","type":"link"}