... 50mm-219mm, length 190-3400mm, which are used in the steel industry, harbor, coal industry, power industry, cement industry ... 6.Seals: Grease retaining inner seal with Multi-stage Labyrinth and Retention Cap with Outboard Rubbing Flinger Seal.7. ... spraying painting, baked paintingBesides we can manufacture the rollers and idlers according to the buyers' requirment. The popular selling conveyor roller