1)Light duty:
Bearing Aperture: 80~100mm.
The axle and the hub are connected by the single key. And it’s single plate welding. The axle is unidirectional out.
2)Medium duty:
Bearing Aperture: 120~180mm.
The axle and the hub are connected by the ring lock.
3)Heavy duty:
Bearing Aperture:: 200~220mm.
The axle and the hub are connected by the ring lock. The shell body is aluminothermic welding fabric. The axle can be unidirectional and two-way out.
Belt Conveyor Drum Pulley