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  • Worm-gear reducers reach new heights
    forming and percolating to the outside. Worm-gear speed reducers have offered a rugged, adaptable, and cost-effective method of power transmission for nearly a century. But their acceptance in recent years has been somewhat diminished by inherent inefficiency and a reputation for eventually developing oil
    The continuing escalation of energy costs has increased the emphasis on the efficiency of drives and drive systems. Recently, manufacturers of helical based gearing mislead engineers to believe that worm gears are incapable of. running efficiencies of 90% and higher. As shown in the chart below
  • No more "girlie man " gears
    Advanced polymers let designers replace metals in large, complex gear sets that can carry heavy loads and survive harsh environments. A washing-machine-transmission gear set features a housing and two gears with spindles that extend through the case made from long-glass-fiber-reinforced Celstran
  • When Worm Gearboxes Need to be Backdriven, Disengaged or Torque Limited
    Worm gearboxes and speed reducers can be very cost effective torque multipliers, especially as ratios climb above 10:1 or 12:1. They can typically achieve ratios up to 100:1 in a single gear stage which drastically reduces the component count of other gear types with these ratios. That, along
  • PM Brings Satellite TV to RVs
    and bevel gears to operate the skew mechanism, while the elevation assembly contains two bronze PM bearings impregnated with oil. Symmco also pressed stock bearings into a custom iron PM block to form a worm gear retainer. Bud Jones, Symmco director of engineering, said the two-part design was both

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