Long Machined Assembly with Threaded Spindle Shaft Assembly and Flanged Midshaft Sprocket Wheel

Thread class tolerance and bearing journal runout are the two governing callouts for a threaded spindle shaft assembly with flanged midshaft sprocket wheel; thread class determines nut-to-shaft engagement contact ratio under axial preload, while journal runout at each shaft end determines whether the assembled spindle runs within the bearing's dynamic eccentricity limit. Jiangsu Juli Intelligent Machinery (Fenhu Economic Development Zone, Suzhou, Jiangsu) turns and mills this carbon steel threaded spindle shaft assembly with flanged midshaft sprocket using milling & turning and external cylindrical grinding, with thread class, journal runout, and sprocket tooth profile controlled per your drawing callouts. ISO 9001, VDA 6.1, ISO 3834, ISO 14001, and ISO 45001 certification at Juli's Suzhou facility (over 35,000 m²) governs inspection quality records for bearing & transmission, automation, railway, and machinery spindle shaft applications, supporting automotive, aerospace, and medical equipment projects. Share your specs — thread specification, journal diameters, runout requirement, and sprocket module to request pricing from our Suzhou facility.