The flat return upper conveyor idler belongs to the return idler, it is also applied to the port transport wharf, mine transport, machinery and equipment. This kind of rerturn idlers have superior self-lubricating properties, it iis fully lubricated and are not easy to stick in harsh conditions. The return idlers produced by our company have anti-static, anti-combustion, anti-aging, anti-acid, alkali and organic solvent corrosion; They can withstand repeated shock, vibration; ambient temperature range: -40℃-90℃; excellent mechanical properties, light weight, easy installation, no maintenance. Main features of parallel upper idlers: 1. Good sealing performance. Labyrinth seal design is grease filled and offers an additional level of protection from contaminants impacting the bearing, Idlers have sealed for life. 2. They can withstand a certain axial load. 3. They have smooth operation, no blocking phenomenon during running. 4. This Idler…