March 30, 2020

EP offers a complete selection of modular servo gearboxes /worm reducers. The modular design allows for configurations with motor suggestions flange and result pinion for rack and pinion drives, along with solid output shafts, Hollow bore output, and input shafts for all the positioning applications. The modular design allows for general mounting of the gearbox in any orientation.
Servo-Worm Reducers were particularly developed for make use of with the latest servo motors found in applications that demand precise positioning and repeatability.
These reducers are well suited for applications in materials handling, automation, machine tool, and robotics.
The light weight modular aluminum housing design permits easy machine integration, and excellent heat dissipation. A wide variety of insight flanges and couplings can be found to permit easy mounting of nearly any servo-motor and custom made flanges can be accommodated. Productivity configurations with pinion, hollow bore, or sturdy shaft are available and will be configured for source with motor flange, free of charge input shaft, or both free of charge input shaft and motor flange.
An optimized worm gear tooth design insures great efficiency while at the same time decreasing backlash. Two levels of backlash are available, Precise or Extra-exact, with backlash amounts to less than 3 arc minutes.
Available in 6 sizes
Ratios from 2 to 60:1
Torque Potential up to 4400 Lb.-Ft. (6000 Nm)
Input Boosts to 6000 RPM
Two backlash amounts – Precise and Extra-precise.
Modular design appropriate for rack & pinion system
4 input styles
7 output styles
28 possible standard configurations
Wide range of servo gearboxes, made to fit virtually all servo motors on the market
Designed for the best torsional stiffness and the lowest angular backlash, intended for the utmost 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 practical 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 selection of Servo-Worm Reducers are exquisite for use in applications that demand high repeatability, precise positioning and performance. They were especially developed for use with state-of-the-art servo engine technology, providing limited integration of the motor to the unit. Angular backlash of less than 1 arc-mins is provided standard.
They can be purchased in four sizes (50 mm to 100 mm center length) 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 wide range of engine couplings and mounting flanges are available for assembly to nearly all servo motors, and the hollow bore end result works extremely well to mount output shafts, pinion shafts, or other drive elements.
Normal applications for these reducers include precision rotary axis drives, traveling gantries & columns, materials handling axis drives, zero-backlash axis drives and electronic digital line shafting. Industries dished up include Material H, Automation, ling, Machine Program, Robotics and Aerospace.
Gearing: Internal gear design was optimized to provide an angular backlash of significantly less than 1 arc-minutes in assembly, with the option of “in the field” adjustable backlash if necessary.
Bearings: Input angular call bearings for high suggestions speed, and robust output tapered-roller bearings for high radial and axial load potential.
Housing: Aluminium housing for good heat dissipation, with integral insight flange for servo motors and general mounting on any deal with.
Output: The outcome bore is available with a good compression-type hub or a good ISO 9409-1 flange (see dimension web pages). We give you a line of gadgets to adapt these outputs to right 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 as well eliminates back-traveling the gearmotor so a position can be placed even when power is not applied. The precision ground 3/8” stainless steel productivity shaft is backed by dual 3/8” ABEC 5 ball bearings to support lots from any orientation. The ¼” ABS plastic and lightweight aluminum structure offers a rigid framework without adding unnecessary weight and is conveniently attached to any flat work surface by utilizing the bottom mounting tabs. Our Standard Spur Gear motors will work with this gearbox (engine sold separately). The Vertical Shaft Worm-Drive Gearbox is ideal for turn-tables, time-lapse systems and low-rate applications that want high precision and torque.
Motor RPM required = 1 / (a few minutes 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 best suited for basic action and source speeds of 2000 rpm where profile software costs are a major consideration.
7 sizes with torque capacities up to 684 Nm
12 exact single level ratios from 7:1 to 100:1
2 stage ratios available
Inch or metric productivity shafts
Hollow output standard, place shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-style hub provides zero-backlash motor shaft connection
Aluminum diecast housing for low weight
Large outcome bearings accommodate bigger radial loads
Inch or perhaps metric hollow bore with keyway, single and dual plug-in shafts also available
Double lip output seals provide maximum protection against contaminants
Face or base mounting alternatives, bolt on flanges and torque hands also available
Bronze wheels cast in the end result shaft for higher strength
Hardened and surface 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 element eliminates electric motor misalignment and bearing wear
Worm Gears are ideal angle drives providing significant acceleration ratios on comparatively short center distances from 1/4” to 11”. When properly attached and lubricated they function as the quietist and smoothest running type of gearing. Because of the high ratios feasible with worm gearing, optimum speed reduction can be accomplished in less space than a great many other types of gearing. Worm and worm gears are powered by non-intersecting shafts at 90° angles.
EFFICIENCY of worm equipment drives depends to a sizable extent on the helix position of the worm. Multiple thread worms and gears with higher helix angle prove 25% to 50% better than solo thread worms. The mesh or engagement of worms with worm gears generates a sliding action causing considerable friction and greater lack of efficiency beyond other types of gearing. The utilization of hardened and surface worm swith bronze worm gears increases efficiency.
LUBRICATION can be an essential factor to boost efficiency found in worm gearing. Worm equipment action generates considerable heating, decreasing efficiency. The quantity of ability transmitted at confirmed temperature rises as the efficiency of the gearing rises. Proper lubrication enhances performance by lowering friction and heat.
RATIOS of worm gear sets are dependant on dividing the quantity of teeth in the apparatus by the amount of threads. Thus solitary threads yield larger ratios than multiple threads. All EP. worm gear sets are available with either left or right hand threads. EP. worm gear sets are offered with Qua, Triple, Double and Single-druple Threads.
Safe practices PROVISION: Worm gearing should not be used as a locking mechanism to hold major weights where reversing action could cause harm or harm. In applications where potential damage is non-existent and self-locking is preferred against backward rotation then use of a single thread worm with a minimal helix angle automatically locks the worm gear drive against backward rotation.
Materials recommended for worms is certainly hardened steel and bronze for worm gears. However, depending on the application unhardened metal worms operate adequately and extra economically with cast iron worm gears at 50% horsepower ratings. Furthermore to metal and hardenedsteel, worms are available in bronze, metal, stainless and nylon; worm gears are available in steel, hardened steel, stainless, light weight aluminum, nylon and non-metallic (phenolic).
EP also sells gear tooth measuring products called Equipment GAGES! Gear Gages lessen mistakes, save money and time when identifying and purchasing gears. These pitch templates are available in nine sets to identify all the regular pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, Exterior Involute Splines, Metric Module “MOD”, Stub Tooth, Great Pitches, Coarse Pitches and Uncommon Pitches. Refer to the section on Equipment GAGES for catalog amounts when ordering.

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