EP offers a complete selection of modular servo gearboxes /worm reducers. The modular style permits configurations with motor input flange and outcome pinion for rack and pinion drives, together with solid output shafts, Hollow bore output, and insight shafts for all the positioning applications. The modular design and style allows for universal mounting of the gearbox in any orientation.
Servo-Worm Reducers were specifically developed for employ with the most recent servo motors 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 allows for easy machine integration, and excellent heat dissipation. A multitude of type flanges and couplings can be found to permit easy mounting of practically any servo-motor and custom made flanges could be accommodated. Productivity configurations with pinion, hollow bore, or solid shaft are available and may be configured for type with motor flange, no cost type shaft, or both no cost input shaft and engine flange.
An optimized worm gear tooth design insures great efficiency while at 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 Potential up to 4400 Lb.-Ft. (6000 Nm)
Input Speeds up 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 variety of servo gearboxes, made to fit almost all servo motors found on the market
Designed for the best torsional stiffness and the lowest angular backlash, to get the maximum torque and overhung loads
Bush with slot machines and hub clamp for servomotor coupling
Enhanced dimensional compactness because of direct servomotor coupling
Widest range of possible servomotors coupling dimensions.
The right technical solution because of a comprehensive selection of sizes, gear stages, transmission ratios, designs and non-standard designs.
High-Torque (HT) Servo-Worm Reducers
This standard selection of Servo-Worm Reducers are ideal for use in applications that demand high performance, precise positioning and repeatability. They were specifically developed for make use of with state-of-the-art servo engine technology, providing limited integration of the electric motor to the machine. Angular backlash of less than 1 arc-moments 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 virtually all servo motors, and the hollow bore outcome can be utilised to mount end result 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 electronic line shafting. Industries served include Material H, ling, Automation, Machine Program, Aerospace and Robotics.
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 discipline” adjustable backlash in the event necessary.
Bearings: Input angular contact bearings for high type speed, and robust output tapered-roller bearings for superior radial and axial load potential.
Housing: Light weight aluminum housing for good heat dissipation, with integral source flange for servo motors and common mounting on any face.
Output: The outcome bore is available with a compression-type hub or a good ISO 9409-1 flange (see dimension web pages). We give you a line of extras to adjust these outputs to straight 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 also eliminates back-generating the gearmotor so a posture can be placed even when power is not applied. The precision floor 3/8” stainless steel productivity shaft is reinforced by dual 3/8” ABEC 5 ball bearings to aid a load from any orientation. The ¼” ABS plastic and aluminium structure provides a rigid framework without adding unneeded weight and is very easily mounted to any flat surface by utilizing the base mounting tabs. Our Normal Spur Gear motors will work with this gearbox (motor offered separately). The Vertical Shaft Worm-Drive Gearbox is ideal for turn-tables, time-lapse systems and low-velocity 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 needed to achieve 10 minutes per rotation (in max speed)
now offers an economical right angle gearhead for employ with small NEMA 23 through 56 and similar compact metric servo and stepper motors. These reducers are most appropriate for basic motion and source speeds of 2000 rpm where profile software costs certainly 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 end result shafts
Hollow output standard, insert shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-style hub provides zero-backlash motor shaft connection
Aluminum diecast casing for low weight
Large result bearings accommodate larger radial loads
Inch or metric hollow bore with keyway, sole and dual plug-found in shafts also available
Double lip output seals provide optimum protection against contaminants
Face or base installation alternatives, bolt on flanges and torque hands also available
Bronze wheels cast in the result shaft for higher strength
Hardened and floor worm shaft provides even operation
Reducer completely sealed for general mounting and long-life lubrication
Two bearing worm support isolates electric motor bearings from radial and axial loads
Flexible coupling component eliminates motor misalignment and bearing wear
Worm Gears are best suited angle drives providing significant rate ratios on comparatively brief center distances from 1/4” to 11”. When effectively mounted and lubricated they function as quietist and smoothest working type of gearing. As a result of high ratios conceivable with worm gearing, maximal speed reduction could be accomplished in less space than many other types of gearing. Worm and worm gears are powered by non-intersecting shafts at 90° angles.
EFFICIENCY of worm gear drives depends to a big degree on the helix position of the worm. Multiple thread worms and gears with bigger helix angle prove 25% to 50% better than single thread worms. The mesh or engagement of worms with worm gears generates a sliding action causing considerable friction and increased lack of efficiency beyond other styles of gearing. The use of hardened and floor worm swith bronze worm gears boosts efficiency.
LUBRICATION can be an essential factor to boost efficiency found in worm gearing. Worm equipment action generates considerable warmth, decreasing efficiency. The quantity of ability transmitted at confirmed temperature increases as the productivity of the gearing increases. Proper lubrication enhances productivity by reducing friction and heat.
RATIOS of worm equipment sets are determined by dividing the amount of teeth in the apparatus by the amount of threads. Thus solo threads yield larger ratios than multiple threads. All EP. worm gear sets can be found with either still left or right hand threads. EP. worm gear sets are offered with One, Double, Qua and Triple-druple Threads.
Safe practices PROVISION: Worm gearing shouldn’t be used as a good locking mechanism to carry major weights where reversing action could cause harm or personal injury. In applications where potential injury is nonexistent and self-locking is wanted against backward rotation after that use of a single thread worm with a minimal helix angle instantly locks the worm gear get against backward rotation.
Materials recommended for worms is hardened steel and bronze for worm gears. Even so, depending on the application form unhardened metal worms operate adequately and more economically with cast iron worm gears at 50% horsepower ratings. Furthermore to metal and hardenedsteel, worms can be found in stainless, bronze, nylon and aluminum; worm gears can be found in steel, hardened steel, stainless, light weight aluminum, nylon and nonmetallic (phenolic).
EP also sells equipment tooth measuring products called GEAR GAGES! Gear Gages decrease mistakes, save money and time when identifying and purchasing gears. These pitch templates are available in nine sets to identify all the standard pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Great Pitches, Coarse Pitches and Uncommon Pitches. Make reference to the section on GEAR GAGES for catalog numbers when ordering.

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