{"product_id":"thomson-industries-ssem20-closed-linear-bearing-20mm","title":"Thomson Industries SSEM20 Closed Linear Bearing 20mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe THOMSON INDUSTRIES SSEM20 is a closed linear bearing designed for precision linear motion applications in industrial and mechanical systems. Built around a 20mm bore diameter (0.787 inch), this Super Smart Ball Bushing bearing delivers a dynamic load capacity of 4,000 pounds, making it suitable for moderate-to-heavy-duty linear guide systems. The self-aligning design compensates for minor shaft misalignment, reducing wear and extending service life. With 10 ball circuits and a 32mm outside diameter, the SSEM20 provides smooth, low-friction travel along hardened steel shafting. Licensed machinists, mechanical technicians, and OEM assembly professionals typically source this bearing for integration into automated equipment and precision machinery.\u003c\/p\u003e\u003cp\u003eThe SSEM20 is suited for closed-configuration linear bearing applications where full shaft enclosure is required to retain lubrication and exclude contaminants. Its round bore and self-alignment style make it appropriate for use in linear slides, pick-and-place equipment, CNC axis assemblies, and other motion control setups where consistent load distribution along the shaft is critical. The closed style makes it a common choice in environments where dust or debris may be present around the shaft.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSuper Smart Ball Bushing design with 10 ball circuits for smooth, consistent linear motion\u003c\/li\u003e\n\u003cli\u003eSelf-aligning bore style compensates for minor shaft misalignment\u003c\/li\u003e\n\u003cli\u003eClosed bearing style retains lubrication and provides contamination resistance\u003c\/li\u003e\n\u003cli\u003e4,000 lb dynamic load capacity suitable for moderate-to-heavy-duty applications\u003c\/li\u003e\n\u003cli\u003e20mm inside diameter with 32mm outside diameter for standardized shaft and housing fitment\u003c\/li\u003e\n\u003cli\u003eOverall length of 45mm with retaining ring grooves for secure axial positioning\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style closed linear bearing for use with 20mm diameter hardened steel shafting in standard linear motion systems and assemblies.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified mechanical technician familiar with linear motion components and bearing press-fit procedures. Ensure the mating shaft and housing bore are clean, within tolerance, and free of burrs before installation. Power down and de-energize any associated drive systems before servicing the bearing assembly. Retaining rings should be seated fully in the groove before returning the assembly to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type\u003c\/strong\u003e: Super Smart Ball Bushing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Style\u003c\/strong\u003e: Closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 20mm (0.787 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 32mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 45mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Load Capacity\u003c\/strong\u003e: 4,000 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Ball Circuits\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Type\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment Style\u003c\/strong\u003e: Self-Aligning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistance Between Retaining Ring Grooves\u003c\/strong\u003e: 31.2mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetaining Ring Groove Minimum\u003c\/strong\u003e: 1.6mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: THOMSON INDUSTRIES\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SSEM20\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"THOMSON INDUSTRIES","offers":[{"title":"Default Title","offer_id":67911166886194,"sku":"SSEM20","price":116.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8e47c7799bef570cae740cefcf30b785.jpg?v=1791205307","url":"https:\/\/voomisupply.com\/products\/thomson-industries-ssem20-closed-linear-bearing-20mm","provider":"Voomi Supply","version":"1.0","type":"link"}