Marked Cumberland Steel Ground Shafts – Cumberland MD on one side. Marked Link Belt Co – with a list of locations – on the other. What are ground shafts you ask. They prevent electrical damage to electric motors, generators, and pump bearings from electromagnetic induction and residual currents. History: Cumberland Steel, reputably founded in 1898, ceased operations in 1987. ( An earlier company, Cumberland Steel and Tin Plate Co is listed in the The Engineering and Mining Journal December 1893 Vol 56 Index; however, we do not know if they are the same company as Cumberland Steel. The current Cumberland Steel states on their website that they were founded in 1952. ) The predecessor to Link Belt – Ewart Manufacturing Company – was was founded in 1975 by William Dana Ewert, the inventor of a detachable link chain for harvesters, solving field repair issues for farmers. In the 1880s, separate companies were established to manufacture link belts for conveyors ( Link-Belt Machinery Company ) and elevators ( Link-Belt Engineering Company ). In 1906, the three companies merged, forming the Link Belt Company. Link Belt expanded into construction equipment. In 1967, Link Belt was acquired by FMC Corp. About 1/2 x 1 1/2 diameter inches
Weight: 0.26 LB
Measurement: 0.5 x 1.5 IN
Depth: 1.5
Condition report:
Excellent
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