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POWER TRANSMISSION

Duff-Norton offers all of the components necessary to complete your power transmission system, whether it consists of a single actuator or a multiple actuator arrangement. We offer a complete line of accessories to interconnect two or more actuators and provide permanent synchronization. Duff- Norton's Application Engineers can specify shafts, couplings, pillow blocks, and right-angle miter gearboxes to accommodate any layout. Bellows boots to protect actuator screws from dirt and other contaminates are available for all actuators, to increase life and reduce maintenance requirements.

Below are the basic selection of power transmission components that can be utilized to assemble a system. Download the PDFs for further information and specifications.

Power transmission components

Download the PDF here.

Power Transmission Components

Screw Jack Components

Duff-Norton's extensive experience in actuator systems can provide you with suggestions for the most economical and reliable method to complete your lifting system. Download the PDF on Transmission components to get diagrams for typical system arrangements and tables that match the parts to their respective actuator sizes to assist selection.

Mitre Boxes

Download the PDF here.

mitre boxes

Power transmission systems frequently use multiple actuator arrangements. Such systems commonly use mitre boxes to effectively position and equally distribute loads. As the mitre boxes are supplied with 1:1 gear ratios as standard, all motion is synchronous upon system actuation through the main drive shaft. Our mitre boxes feature a compact design, which eliminates the need for an extended hub. With this design feature the bevel gear is supported by tapered roller bearings on both sides. The result is a higher horsepower rating, increased service-life, improved lubrication, and more flexible mounting compared to other brands. 


For more information plus specifications and dimensions please download our PDF using the link above.

Actuator Couplings

Download the PDF here.

actuator couplings

Duff-Norton provides three coupling types which have been tailored to specific actuator requirements. Chain Couplings, Jaw Couplings and Full-Flex and Flex-Rigid gear couplings are available.

For more information plus specifications and dimensions please download our PDF using the link above.

Connecting Shafts

Download the PDF here.

Screw Jack Connecting Shaft

Duff-Norton's connecting shafts are the solution to a common system operating problem that stems from connecting shafts made from standard steel, which are often bowed or out-of-round. This results in a whipping effect while the system is being run with the connecting shaft working its way loose form the system at high speeds and doing a great deal of damage to the system's equipment. Duff-Norton connecting shafts are furnished with close tolerance Turned, Ground, and Polished steel for smooth rotation.


For more information plus specifications and dimensions please download our PDF using the link above.

Pillow Blocks

Download the PDF here.

pillow blocks

Duff-Norton provides a wide assortment of Pillow Blocks designed to operate with our actuators, shafts, and couplings meeting a wide range of system requirements. Pillow Blocks may be used in any shafting configuration for additional shaft support, but are specifically required when the shaft length exceeds the dimensions listed in our shaft selection tables. 
For more information plus specifications and dimensions please download our PDF using the link above.

Flange Blocks

Download the PDF here.

flange block

Duff-Norton provides a wide assortment of Flange Blocks designed to operate with our rotating type Machine Screw, Ball Screw, and Continuous Duty actuators. Flange Blocks lock on to the end of the rotating screw, and can then be bolted on to the machine or fixture. This ensures that the load being carried by the actuator's lifting nut is properly guided. 


For more information plus specifications and dimensions please download our PDF using the link above.

Bellows Boots

Download our PDF here.

bellows boots

Duff-Norton highly recommends the use of a bellows boot for most actuator applications. Duff-Norton can provide bellows boots for the most stringent application requirement. Bellows Boots protect the lifting screw from dust, dirt, moisture, and corrosive contaminants.


For more information plus specifications and dimensions please download our PDF using the link above.

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Guide to choosing the right linear actuator
Guide to choosing the right linear actuator
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