Description :
Tenders for Corrigendum : Supply Of Helical Inline Gear Motor To The Model No. Sk 973.1 - 112mp/4 Tf For Axle Pusher Chain Conveyor Of Make M/s Nord Or Substantially Equivalent With Following Features: Input Speed(rpm): 1440; Output Speed(rpm): 21; Gear Ratio: 68.5; Power (kw): 4; Service Factor: 1.8; Output Torque: 1817 Nm; Overhung Load: 25 Kn; Axial Load: 22 Kn; Motor Inverter Speed Range: Standard Line Powered Inverter Capable; Voltage: 400/690 V; Frequency: 50 Hz; Efficiency Class: Ie3; Current 1: 7.85 A; Current 2: 4.53 A; Cosinus: 0.83; Motor Duty: S1 - Continuous; Enclosure: Ip55; Insulation Class - F; Mounting Pos - M1; Housing Material: Cast Iron Housing; Type Of Housing: Foot Mount; Output Shaft: Solid Keyed Shaft; Output Shaft (dia X Length): 60x120mm; Output Shaft Material: Standard; Gearbox Breather Options: Auto Vent; Gearbox Sealing Options:fkm Seals; Bearing Design: Standard Bearings; Motor Cooling: Tefc - Totally Enclosed Fan Cooled; Motor Thermal Protection: Thermistor; Motor Option: Fluoro Rubber Motor Seals; Height Of Output Shaft Center Frombottom Of Base Plate: 225 Mm; Mounting Base Plate Details: Minimum Plate Thickness: 50 Mm; 04 Holes Of 22 Mm Dia Each With Square Pattern; Distance Between Holes Along The Shaft: 310 Mm; Distance Between Holes Perpendicular To Shaft: 250 Mm; Note: - (i) Material Of Construction: Fabricated Steel Housing (stress Relieved) (ii) All Gears Shall Be Manufactured From Steel Forgings Or Rolled Bar Made From Steel 17cr Ni Mo6/18cr Ni Mo6 (case Hardening Steel). (iii) All Gears Shall Be Case Hardened To 58-62 Hrc And Profile Ground. (iv) Output Shaft Shall Be Of En 9 Material Normalized To 201 Bhn (min) (v) Bearing Used Shall Be Rolling Element Type Of Make Skf/ntn/timken/fag Only. Special Conditions: Above Specified Materials Are The Minimum Required Standard To Be Considered While Designing The Gear Motor. [ Warranty Period: 18 Months After The Date Of Delivery ]
