What’s New Rock Breakers

The new 715 is rated at 550 ft-lb per blow and the 725 is rated at 750 ft-lb per blow. The new hammers have few moving parts and seals and have no accumulators, the company says. Circle Reply Card No. O Gears

Custom-made herringbone gears and pinions, used in kilns, calenders and mixers are available from Gearench Inc. of Clifton, Tex.

Using an AutoCad design program and a computerized production control and scheduling process, the company can produce gears with military precision.

Gears are made from ductile iron gear blanks and 4140 heat-treated, stress-relieved steel bar stock. Diameters range from two to 54 inches.

Gears of other materials, measuring up to 72 inches in diameter, can also be shipped. Circle Reply Card # b

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