For whatever the application, Delroyd® has the model, configuration, size, ratio, input and output to meet your power transmission need reliably and efficiently.

Applications

• Hoists, mechanical jack and screw drives
• Log handling and debarking machines
• Grinding and threading machines
• Steel and paper mill machinery
• Sewage treatment equipment
• Chemical processing equipment
• Machine tools, elevators & pumps
• Mining machinery
• Drilling equipment
• Coal handling & pulverizers
• Cement mixers
• Winch drives
• Mixers & agitator drives
• Cable tensioners

Advantages of Delroyd® Worm Gearing

Compactness and High Ratio Reduction

Single reduction worm gearing offers high ratio reduction with few moving parts in a close-coupled compact drive. Compact right angle input and output shaft arrangements can be extended in horizontal or vertical arrangements adaptable to any mounting requirement. Double reduction units give a wider ratio range beyond practical single reduction limits. Compact right angle or parallel shaft arrangements are provided with the same versatility of shaft extensions. Triple reduction units provide ultra-slow output speeds and high torques.

Long, Quiet Life

All worm gears incorporated in Delroyd® reducers are made from phosphor bronze. They also incorporate a hardened, ground and polished alloy steel worm which develops a smooth, work hardened surface on the bronze. For this reason, worm gears wear in and
improve with prolonged service versus other gear configurations which wear out with prolonged service. Two or more teeth are in contact with the worm at all times, transmitting power by a continuous, quiet and shockless action. As a result, the flow of torque is smooth and free from angular velocity changes, thus eliminating vibration, pulsation, chatter, and other customary gear noises.

High Shock Load Capacity

The Delroyd® worm gear tooth form is designed such that the gear teeth operate under a crushing, rather than a bending load. For this reason, extremely high momentary and shock loads, damaging to many forms of gearing, can be successfully withstood. Also, high momentary overloads will seldom cause failure, as worm gear ratings are figured on the wear resistance of the gear teeth.

Safety and Ease of Maintenance

The few moving components are completely enclosed, thus avoiding the hazards of exposed parts. Reducers operate with minimum attention even under the most adverse conditions.

Interchangeability of Components

All parts are manufactured to be interchangeable by the use of limit gages retained as reference standards to assure precision and uniformity. The need for matched gearing is thus avoided. Worms and gears of different ratios can be readily interchanged if revision of speeds becomes necessary.