EP offers a complete selection of modular servo gearboxes /worm reducers. The modular style permits configurations with motor type flange and outcome pinion for rack and pinion drives, together with solid output shafts, Hollow bore outcome, and type shafts for all other positioning applications. The modular design allows for general mounting of the gearbox in any orientation.
Servo-Worm Reducers were particularly developed for employ with the latest servo motors found in applications that demand exact positioning and repeatability.
These reducers are ideal for applications in materials handling, automation, equipment tool, and robotics.
The light-weight modular aluminum housing design permits easy machine integration, and excellent heat dissipation. A multitude of source flanges and couplings are available to permit easy mounting of nearly any servo-motor and custom made flanges can be accommodated. End result configurations with pinion, hollow bore, or sound shaft are available and will be configured for insight with motor flange, free suggestions shaft, or both free of charge input shaft and engine flange.
An optimized worm gear tooth design insures substantial efficiency while at exactly the same time decreasing backlash. Two levels of backlash can be found, Precise or Extra-exact, with backlash levels to significantly less than 3 arc minutes.
Obtainable in 6 sizes
Ratios from 2 to 60:1
Torque Capacity up to 4400 Lb.-Ft. (6000 Nm)
Input Boosts to 6000 RPM
Two backlash levels – Precise and Extra-precise.
Modular design appropriate for rack & pinion system
4 input styles
7 output styles
28 possible standard configurations
Wide variety of servo gearboxes, made to fit almost all servo motors on the market
Designed for the best torsional stiffness and the cheapest angular backlash, designed for the maximum torque and overhung loads
Bush with slot machine games and hub clamp for servomotor coupling
Enhanced dimensional compactness due to direct servomotor coupling
Widest range of conceivable servomotors coupling dimensions.
The right technical solution thanks to a comprehensive selection of sizes, gear stages, transmission ratios, designs and nonstandard designs.
High-Torque (HT) Servo-Worm Reducers
This standard range of Servo-Worm Reducers are simply perfect for use in applications that demand high repeatability, performance and precise positioning. They were specifically developed for make use of with state-of-the-art servo electric motor technology, providing tight integration of the electric motor to the machine. Angular backlash of less than 1 arc-mins is provided standard.
They are available in four sizes (50 mm to 100 mm center distance) with input boosts to 5,000 rpm, reduction ratios from 4.75 to 52:1 and output torque capacities up to 885 lb.ft. A broad range of electric motor couplings and mounting flanges are for sale to assembly to practically all servo motors, and the hollow bore productivity can be used to mount productivity shafts, pinion shafts, or other drive elements.
Common applications for these reducers include precision rotary axis drives, traveling gantries & columns, material handling axis drives, zero-backlash axis drives and electric line shafting. Industries served include Material H, ling, Robotics, Aerospace, Automation and Machine Tool.
Gearing: Internal gear design was optimized to supply an angular backlash of significantly less than 1 arc-minutes at assembly, with the choice of “in the discipline” adjustable backlash in the event necessary.
Bearings: Input angular contact bearings for high insight speed, and robust result tapered-roller bearings for high radial and axial load ability.
Housing: Aluminium housing once and for all heat dissipation, with essential input flange for servo motors and universal mounting on any encounter.
Output: The output bore is available with a compression-type hub or a good ISO 9409-1 flange (see dimension webpages). We offer a line of components to adjust these outputs to direct shafting, Rack & Pinions, or other gearing types.
This gearbox utilizes a 30:1 ratio worm-travel reduction for applications that want extremely slow and smooth rotational motion. The worm-drive design not merely minimizes backlash but likewise eliminates back-generating the gearmotor so a position can be placed even when power is not applied. The precision floor 3/8” stainless steel output shaft is backed by dual 3/8” ABEC 5 ball bearings to support lots from any orientation. The ¼” ABS plastic and aluminium structure offers a rigid framework without adding unneeded weight and is quickly attached to any flat work surface by utilizing the bottom mounting tabs. Our Standard Spur Gear motors will work with this gearbox (engine distributed separately). The Vertical Shaft Worm-Drive Gearbox is simply perfect for turn-tables, time-lapse systems and low-velocity applications that want high accuracy and torque.
Motor RPM required = 1 / (moments per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor had a need to achieve 10 minutes per rotation (in max speed)
now offers an economical right angle gearhead for make use of with small NEMA 23 through 56 and similar little metric servo and stepper motors. These reducers will be most appropriate for basic motion and suggestions speeds of 2000 rpm where profile program costs are a major consideration.
7 sizes with torque capacities up to 684 Nm
12 exact single stage ratios from 7:1 to 100:1
2 stage ratios available
Inch or metric end result shafts
Hollow output standard, place shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-style hub provides zero-backlash electric motor shaft connection
Aluminum diecast housing for low weight
Large productivity bearings accommodate bigger radial loads
Inch or metric hollow bore with keyway, solitary and dual plug-found in shafts also available
Double lip end result seals provide maximum protection against contaminants
Face or base installation alternatives, bolt on flanges and torque arms also available
Bronze wheels cast about the output shaft for higher strength
Hardened and ground worm shaft provides simple operation
Reducer completely sealed for general mounting and long-life lubrication
Two bearing worm support isolates motor bearings from radial and axial loads
Flexible coupling aspect eliminates motor misalignment and bearing wear
Worm Gears are best angle drives providing large rate ratios on comparatively brief center distances from 1/4” to 11”. When correctly installed and lubricated they function as the quietist and smoothest working type of gearing. As a result of high ratios possible with worm gearing, maximal speed reduction could be accomplished in less space than a great many other types of gearing. Worm and worm gears operate on non-intersecting shafts at 90° angles.
EFFICIENCY of worm equipment drives depends to a sizable level on the helix angle of the worm. Multiple thread worms and gears with larger helix angle prove 25% to 50% more efficient than sole thread worms. The mesh or engagement of worms with worm gears produces a sliding action creating considerable friction and increased loss of efficiency beyond other types of gearing. The use of hardened and surface worm swith bronze worm gears boosts efficiency.
LUBRICATION can be an essential factor to boost efficiency found in worm gearing. Worm gear action generates considerable warmth, decreasing efficiency. The number of power transmitted at confirmed temperature raises as the performance of the gearing boosts. Proper lubrication enhances productivity by minimizing friction and heat.
RATIOS of worm gear sets are dependant on dividing the number of teeth in the apparatus by the amount of threads. Thus one threads yield bigger ratios than multiple threads. All EP. worm equipment sets can be found with either still left or right hand threads. EP. worm equipment sets can be found with One, Double, Qua and Triple-druple Threads.
Safe practices PROVISION: Worm gearing should not be used as a locking mechanism to hold large weights where reversing actions could cause harm or injury. In applications where potential harm is non-existent and self-locking is preferred against backward rotation after that use of a single thread worm with a low helix angle quickly locks the worm gear travel against backward rotation.
MATERIAL recommended for worms is usually hardened steel and bronze for worm gears. Even so, depending on the application form unhardened steel worms operate adequately and extra economically with cast iron worm gears at 50% horsepower ratings. In addition to metal and hardenedsteel, worms can be found in bronze, light weight aluminum, stainless and nylon; worm gears can be found in steel, hardened metal, stainless, aluminum, nylon and nonmetallic (phenolic).
EP also sells equipment tooth measuring devices called Equipment GAGES! Gear Gages decrease mistakes, save time and money when identifying and purchasing gears. These pitch templates can be purchased in nine sets to recognize all the typical pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Excellent Pitches, Coarse Pitches and Unusual Pitches. Make reference to the section on GEAR GAGES for catalog numbers when ordering.

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