tender for supply of hold back assembly for echs conveyors for echs conveyors bcn 40b & bcn 41a; 1 supply of hold back assembly for echs conveyors for echs conveyors bcn 40b & bcn 41a 2 supply of hold back assembly for the conveyor bcn 40b suitable for below mentioned gear boxgear box detailsmake: eleconmodel no : sbn 630max torque output : 73000 nmtype : helical gearratio : 22.4:1existing hold backassembly detailsmake: ringspanntherotical nominal torque: 36500 nmmax transmissible torque : 73000 nm (max)sprag lift off at inner ring speed: 220 min-¹ 3 supply of hold back assembly for the conveyor bcn 41a suitable for below mentioned gear boxgear box detailsmake: eleconmodel no : sbn 560max torque output : 62000 nmtype : helical gearratio : 22.4:1existing hold back assembly detailsmake: ringspannnominal torque: 31000 nmtransmissible torque : 62000 nm (max)sprag lift off at inner ring speed: 240 min-¹