Customer: A machine tool manufacturer Industry: Machine Tool-Metal Cutting SIC Code: 3599 Location: Michigan Department: Retrofit or OEM: OEM Machinery Involved: A 2 axis x-y table on a grinder used to grind copper locomotive commutators Description of Environment: Linear ball bearings were used to move the x-y table Description of Problem: Small copper fines from the grinding process would cause the ball bearings to fail. Shaft damage also

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