Heynau Mechanical Variable-Speed Drives

Overview:

The Heynau H-Drive is one of the most well known mechanical variable speed drives. The simple construction of this all-steel drive with only a few components, meets the highest requirements for quiet operation, precise speed holding, high efficiency and durability. The drives utilize a set of cones which transmits power via an encapsulating steel ring. By adjusting these cones in relation to the steel ring, a speed adjustment range of 6:1 or 9:1 can be achieved (3:1 reduction and 1:2 or 1:3 increase). This speed range can be realized while the machine is at rest or in motion. These drives can be arranged with input and output reducers to achieve hundreds of speed and power ratings. Motors can also be attached to the input for complete drive packages.

For lubrication, power transmission and good heat dissipation, a special Heynau "Long-Life" oil is used. The qualities of this oil produce an "elasto-hydrodynamic" effect, which prevents direct metal-to-metal contact between transmission surfaces. The result is a high abrasion resistance, which makes an oil change unnecessary. The drives are lubricated for life in sealed housings, making them maintenance free.

Applications:

Precise Speed Adjustment
Narrow-Band Draw Control
Constant Horsepower Applications

Ratings:

Unit Size	Speed Range	Max. Input Speed	Max. Input Torque
4W	9:1	2,000 rpm	15 in.lb.
4W	6:1	1,800 rpm	22 in.lb.
5W	9:1	1,800 rpm	22 in.lb.
5W	6:1	1,700 rpm	33 in.lb.
6W	9:1	1,700 rpm	33 in.lb.
6W	6:1	1,600 rpm	45 in.lb.
7W	9:1	1,600 rpm	45 in.lb.
7W	6:1	1,500 rpm	66 in.lb.
9W	9:1	1,400 rpm	132 in.lb.
9W	6:1	1,300 rpm	180 in.lb.

* For higher speeds, please consult the factory. Ratings based on unit with free input shaft.
Information provided is subject to change without notice.

To insure proper selection, please consult the factory. If you have any questions regarding the information provided here or require more information, please call us at (800) 713-6170 or e-mail us. Our Sales and Engineering departments are ready to help you with your specific power transmission needs.