Axles for Tough Underground Mine Duty


Dana Corp.’s Off-Highway Products Group recently introduced two Spicer Hercules 37R series axles designed for heavy-duty use in the underground mining industry. The 37R116 and 37R118 axles are engineered with a rigid, multi-piece load-bearing structure—including the differential carrier, housing arms, and planetary wheel ends—that accommodates multiple vehicle platform configurations. The 37R axle series is available with Posi-Torq and Hydraloc differential designs that provide excellent torque bias performance in a wide range of ground traction conditions. Using large multi-plate clutch discs actuated by gear-separating forces, the Posi- Torq design provides a constant bias ratio of 2.6 (or 45% locking capacity), resulting in up to 72% torque transfer to the hightraction wheel. As an operator-controlled differential, the Hydraloc design for the 37R axle series allows for moment-tomoment lock-and-release control, delivering superior ground torque bias in severe traction conditions. In its unlocked condition, the Hydraloc differential permits free vehicle steering to facilitate maximum maneuverability. Once locked, a hydraulic piston applies force to a large multi-plate wet clutch, resulting in up to 100% torque transfer to the high-traction wheel.

www.dana.com/offhighway

As featured in Womp 08 Vol 5 - www.womp-int.com