SPD Return Sprial Roller Description : Spiral Return Roller specification: JIS/DIN Standard Rubber Conveyor Roller for Port, Cement, Power Plant Industry 1, Our conveyor roller range About SPD Rollers: The SPD range of conveyor rollers includes both steel and HDPE carry and return rollers. Also available are rubber disc impact and return rollers. The rollers and frames are manufactured to different standards or design according to your special working condition requirements with some innovative and maintenance saving designs. Our rollers are fitted with quality deep ball ZZ C3 bearings for maximum life. Belt Widths of our SPD rollers range from 400-2000. Larger sizes available on request. Roller lifespan could be assured 30,000 to 50,000 hours under normal working condition and maintenance. JIS/DIN Standard Rubber Conveyor Roller for Port, Cement, Power Plant Industry Other conveyor products series JIS/DIN Standard Rubber Conveyor Roller for Port, Cement, Power Plant Industry 2, SPD Conveyor Roller Technical Information 1. Brand: SPD 2, Lift time: 30000-50000hours 3, Production capacity: as usual 800pieces/day. 4. Roller Diameter: 76-219mm. 5. Roller Length: 190mm to 3500mm. 6. Roller Pipe: Q235 carbon steel,high-precision ERW seam pipe with state-of roundness and straightness to ensure well-balanced rotation. 7. Shaft: Accurate shafts are made of cold-drawn bright round steel, which is superior in corrosion resistance and stiffness. We have strict control over tolerance of shaft dimension and surface quality. The service lifespan can be well-secured and prolonged. 8. Bearing: Ball bearing provided with C3 group of clearance, ZZ shield deep-groove to ensure a nice fit and off-set any expected temperature rise during operation by means of internal clearance OR according to your requirements. 9. Bearing brand: SKF, FAG, NSK, LYC, HRB, or according to your requirements. 10. Seals: The labyrinth seal structure is of non-contact type, and durable, and has less rotation-resistance and long life-span as to be of optimum structure, particularly for a long-distance and large capacity conveyor for bulk material. It is approved from the testing of a national authoritative organization 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. Factory high quality greased full for life. 11. Color: black, red, blue, yellow available, or according to your requirement. 12. Finish Ordinary painting/Rubber/Steel screw/Galvanized. 13. Welding: Mixed gas shielded arc welding end. 14. Professional designing and inspection team. 15. Standard: ISO/Australia/CEMA/JIS/DIN. 16.Package: Export standard plywood cases with waterproofing film.