Built with features like Grade 25 cast iron construction, 4142 tensile-strength shaft steel, heavy duty oversized roller bearings and torques that exceed Nema design C. Toshiba’s quarry duty motor will deliver consistent reliable service.
Standard Features
• Class F insulation with B rise • Double or triple baked with Class H varnish • Cast iron conduit boxes on 320 frame and larger • V-ring shaft seal on drive end • Bearing lock nut on 440 frame and larger • L-10 bearing life of 40,000 hours for belt drive and 100,000 hours of direct-coupled applications • Grade 5 or 8 zinc-dichromate plated hardware • Dynamically balanced to 0.1 inch per second or better • Capable of all mounting positions without design changes
Built with features like Grade 25 cast iron construction, 4142 tensile-strength shaft steel, heavy duty oversized roller bearings and torques that exceed Nema design C. Toshiba’s quarry duty motor will deliver consistent reliable service.