{"product_id":"thomson-r81420-precision-ball-bushing-bearing","title":"Thomson R81420 Precision Ball Bushing Bearing","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:fed5dcfe-c96a-4595-bedb-3825712b1f1f-54\" 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:fed5dcfe-c96a-4595-bedb-3825712b1f1f-54\" data-turn-id-container=\"request-WEB:fed5dcfe-c96a-4595-bedb-3825712b1f1f-54\" data-testid=\"conversation-turn-66\" 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=\"92ed27fc-0a73-4473-b0ee-ec2120141ebf\" 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=\"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=\"611\"\u003eThe Thomson R81420 Precision Ball Bushing Bearing is used in precision linear motion systems requiring smooth, low-friction travel and accurate shaft guidance. Commonly installed in CNC machines, industrial \u003ca href=\"https:\/\/plgautomation.com\/collections\/plcs-more\"\u003eautomation equipment\u003c\/a\u003e, packaging machinery, material handling systems, and automated assembly equipment, this precision steel ball bushing features a closed, non-self-aligning design for use on precision round shafts. Maintenance teams and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this bearing for repair, retrofit, expansion, or replacement of linear motion systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"613\" data-end=\"630\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"632\" data-end=\"1011\"\u003eThe Thomson R81420 Precision Ball Bushing Bearing is commonly used in CNC machining centers, robotics, automated assembly systems, packaging equipment, conveyor systems, inspection machines, laboratory automation, and other industrial applications requiring precise linear guidance, low-friction movement, and dependable bearing performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1013\" data-end=\"1042\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1044\" data-end=\"2128\"\u003e• Manufacturer: Thomson Industries\u003cbr data-start=\"1078\" data-end=\"1081\"\u003e• Manufacturer Part Number (MPN): R81420\u003cbr data-start=\"1121\" data-end=\"1124\"\u003e• Product Type: Precision Ball Bushing Linear Bearing\u003cbr data-start=\"1177\" data-end=\"1180\"\u003e• Bearing Series: Precision Steel Ball Bushing®\u003cbr data-start=\"1227\" data-end=\"1230\"\u003e• Bearing Style: Closed\u003cbr data-start=\"1253\" data-end=\"1256\"\u003e• Bearing Configuration: Single\u003cbr data-start=\"1287\" data-end=\"1290\"\u003e• Self-Aligning: No\u003cbr data-start=\"1309\" data-end=\"1312\"\u003e• Adjustable: No\u003cbr data-start=\"1328\" data-end=\"1331\"\u003e• Nominal Shaft Diameter: 0.500 in (12.70 mm)\u003cbr data-start=\"1376\" data-end=\"1379\"\u003e• Outside Diameter: 0.875 in (22.23 mm)\u003cbr data-start=\"1418\" data-end=\"1421\"\u003e• Overall Length: 1.250 in (31.75 mm)\u003cbr data-start=\"1458\" data-end=\"1461\"\u003e• Distance Between Retaining Grooves (C1): 0.967 in (24.56 mm)\u003cbr data-start=\"1523\" data-end=\"1526\"\u003e• Retaining Ring Groove Width (C2): 0.046 in (1.17 mm)\u003cbr data-start=\"1580\" data-end=\"1583\"\u003e• Number of Ball Circuits: 4\u003cbr data-start=\"1611\" data-end=\"1614\"\u003e• Dynamic Load Capacity: 85 lbf (378 N)\u003cbr data-start=\"1653\" data-end=\"1656\"\u003e• Maximum Operating Temperature: 500°F (260°C)\u003cbr data-start=\"1702\" data-end=\"1705\"\u003e• Shaft Compatibility: Thomson Class S Precision Shafting\u003cbr data-start=\"1762\" data-end=\"1765\"\u003e• Construction: Hardened steel, recirculating ball design\u003cbr data-start=\"1822\" data-end=\"1825\"\u003e• Corrosion Resistant: No\u003cbr data-start=\"1850\" data-end=\"1853\"\u003e• Weight: 0.08 lb (0.036 kg)\u003cbr data-start=\"1881\" data-end=\"1884\"\u003e• Coefficient of Friction: As low as 0.001\u003cbr data-start=\"1926\" data-end=\"1929\"\u003e• Features: Precision-ground steel construction, rigid low-drag linear motion, recirculating ball technology, designed for high efficiency and long service life. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2130\" data-end=\"2154\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2156\" data-end=\"2255\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Thomson A81420\u003cbr data-start=\"2172\" data-end=\"2175\"\u003e• Thomson A81420-NBALL\u003cbr data-start=\"2197\" data-end=\"2200\"\u003e• Thomson XA81420\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":"Thomson","offers":[{"title":"New","offer_id":51714016706862,"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_5c5d2ca4-6662-40ae-9848-1de889ed5492.jpg?v=1770413849","url":"https:\/\/plgautomation.com\/products\/thomson-r81420-precision-ball-bushing-bearing","provider":"PLG Automation ","version":"1.0","type":"link"}