This type of carrying roller has been exported to more than 30 countries all over the world and particularly suitable for south america market and we have professional engineers and all of them have rich experience in this field, we can design the goods independently. Standard: gb, iso, cema, din, jis, etc.. Production capacity: as usual 5000 pieces/ week, but urgent order is acceptable Certificate: ce, iso9001, bv, sgs Advantage: The life time: more than 20000 hours Samples for testing are available. The more relaxed payment terms Detailed impact idler feature: 1.Roller idlers dia 50mm-219mm, length 190-3400mm, which are used in the steel industry, harbor, coal industry, power industry, cement industry, etc 2.Tube: q235 3.Shaft: 45# steel 5.Bearing: single & double row deep groove ball bearing 2rz&2z with c3 clearance. 6.Seals: grease retaining inner seal with multi-stage labyrinth and retention cap with outboard rubbing flinger seal. 7. Lubrication: grease is lithium soap type grease with rust inhibitors. 8. Welding: mixed gas shielded arc welding end 9. Painting: ordinary painting, hot galvanized painting, electric static spraying painting, baked painting Besides we can manufacture the rollers and idlers according to the buyers' requirements. Wooden box