steel roller

Product Description

diameter *0, *6, *9, **2, **8, **7, **3, **9.8, **9, **5.2, **4 mm Low radial runout, Low Rotation Resistance, Energy-Saving Permanent Lubrication Long Life-span Shaft: Accurate shaft will be made of special machining mechanism. Pipe: Rollers are made of accurate pipe with state-of roundness and straightness to ensure well-balanced rotation. Ball-Bearing: Optimum fit given between ball bearing, shaft and housing, based upon years of experience. Ball bearing provided with C3 group of clearance, ZZ shield deep-groove to ensure a nice fit and off-et any expected temperature rise during operation by means of internal clearance. Housing: Housing made of deep-drawn material, cast on accurate mould, and will be automatically to pipe simultaneity at both sides. Rigid and mono-block structure so produced ensures to make it free from any looseness between pipe and housing or breakage, resultantly provide with satisfactory durability for high-speed conveyer susceptible to expected big impact during operation. Labyrinth Seal: The particular labyrinth seal structure excogitated in our company is of non-contact type, and so durable and has less rotation-resistance and long life-span ad to be of optimum structure, particularly for a long-distance and large capacity conveyer for bulk material. lt is approved from the testing of national authoritative organization and NC Company that Seal employed is of dustproof and waterproof type, whose performance proved to be satisfactory and has by a long way exceeded the GB and JIS standard after our repeated research and development.