We researched and designed BHR series of rollers with features of wide application range, well environmental flexibility, one-time oiling, 30000 hours lifetime and free-maintenance in lifetime on the base of advanced roller structure in the world and our national standard of belt conveyor.
Belt width range:500 ~ 2000mm;
Characteristics: Considered by many factors, we make its moving moment is smallest, efficiency is high, lifetime is long, maintenance is few and capacity is maximum.
StructureThe tube adopts high-frequency welding tube, lathed and cut by the special machine. Bearing housing adopts cold-pressing type, precision grade is ISOM7 which can make starting torque smaller. Bearing housing is welded with the tube to make the whole structure strong enough, get good precision, make radial unbalance factor is smallest. The shaft is cold-drawn processed to ISOH6 to ensure the bearing’s installing precision. Under certain temperature, the roller will rust even if a little steam coming into. To avoid this we adopt labyrinth seal on two sides of bearing adding lip seal, which can also prevent lubrication leaking. Although these protection methods will make starting torque increase, but outer atmospheric medium can be prevented entering into the bearing housing. The cover is made in die-casting Aluminium which effectively prevent being damaged during shipment, installation and running. The famous-brand bearing we adopted is single-row annular 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.
Inspection Put 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 BHR carrying roller, impact roller and return roller.