BMG’s comprehensive range of Tsubaki encompasses pin gear drive units that replace conventional gear rack systems. Tsubaki standard series (steel) and the S series (stainless steel) pin gear drive units are a combination of a pin structure wheel/rack and a sprocket with a special high strength tooth profile that engages continually and smoothly with the rollers. “This feature allows greater freedom when designing rotating or linear drive units,” says business unit manager, Carlo Beukes. “Another advantage is the high pin wheel/rack balance, which offers greater transmission torque.” Typical applications of these pin gear drive units include rotary kilns, casting lines, drives for large transporters, handling robots and pallet changers of machine tools. These units are also used in environmental sanitation equipment, railroad turntables, welding rollovers and revolving door mechanisms.
BMG’s Tsubaki pin gear drive units, which have a separable segment design to ensure easy installation, can be used in large scale equipment by increasing the number of segments required for each application. In a rotational drive, the pin wheel diameter is extended by increasing the number of pins and in a linear drive, the pin rack length is determined by the number of pins used. These pin gear drive units can be surface coated for additional protection and teeth are hardened to improve strength and wear resistance. Blackening enhances the appearance of these units and protects against corrosion. Electroless nickel plating offers corrosion and wear resistance and the Tsubaki NEP treatment also has rust and weather resistant characteristics.
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