We researched and designed BZR heavy-duty rollers with features of large load capacity, well environmental flexibility, one-time oiling, 40000 hours of lifetime and free-maintenance on the base of advanced roller structure in the world. We can also provide nonstandard design according to customer’s requirements.
Belt width range:1200~ 2800mm； Suitable carrying materials：From even granular materials to lumpish materials such as ore, coal, and grit, etc. Suitable industry: Metallurgy, mining, coal mine, port, building and power station.
Characteristics large load capacity, high efficiency, long lifetime, few maintenance.
Structuresteel tube of the shell adopts high-frequency welding tube, it is lathed and cut by special machine. Bearing area adopts CNC finishing processing bearing housing formed by die-forging. Its precision grade is ISOM6 which can make starting torque smaller. Bearing housing is connected with the shell by welding to make the whole structure strong enough, load capacity large, guarantee good precision. Shaft is cold-drawn processed to ISOH6 to guarantee bearing’s installing precision. We adopt labyrinth on two sides of the bearing. Metallic protection cover can avoid the roller from damaging during shipment, installation and operation. Bearing we used is famous brand in China, it is single-row centripetal ball bearing.
LubricationLithium-based lubrication is applied in lubricating which has good stability under different environments. The lubrication in the bearing area is enough to be used in the whole lifetime of the roller.
InspectionPut the roller on the inspection table after assembly, measure each index at an appointed rotating speed, the ones whose indexes reach the standard will be certified.
Technical parameters of BZR heavy-duty carrying roller, impact idler and return roller