March 30, 2020

EP offers a full selection of modular servo gearboxes /worm reducers. The modular style permits configurations with motor input flange and end result pinion for rack and pinion drives, together with solid result shafts, Hollow bore outcome, and suggestions shafts for all other positioning applications. The modular design and style allows for universal mounting of the gearbox in any orientation.
Servo-Worm Reducers were specifically developed for use with the most recent servo motors found in applications that demand specific positioning and repeatability.
These reducers are ideal for applications in materials handling, automation, equipment tool, and robotics.
The light-weight modular aluminum housing design allows for easy machine integration, and excellent heat dissipation. A wide variety of source flanges and couplings are available to permit easy mounting of almost any servo-motor and custom flanges could be accommodated. Productivity configurations with pinion, hollow bore, or sturdy shaft are available and will be configured for input with motor flange, free suggestions shaft, or both no cost input shaft and motor flange.
An optimized worm equipment tooth design insures excessive efficiency while at the same time decreasing backlash. Two degrees of backlash can be found, Precise or Extra-precise, with backlash amounts to 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 compatible with rack & pinion system
4 input styles
7 output styles
28 possible standard configurations
Wide variety of servo gearboxes, designed to fit almost all servo motors on the market
Designed for the highest torsional stiffness and the cheapest 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 feasible servomotors coupling dimensions.
The right technical solution thanks to 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 exquisite for use in applications that demand high precise positioning, repeatability and performance. They were specifically developed for employ with state-of-the-art servo engine technology, providing restricted integration of the engine to the unit. Angular backlash of less than 1 arc-moments is provided standard.
They are available in four sizes (50 mm to 100 mm center range) 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 motor couplings and mounting flanges are for sale to assembly to virtually all servo motors, and the hollow bore productivity can be utilized to mount result shafts, pinion shafts, or other drive elements.
Standard applications for these reducers include precision rotary axis drives, traveling gantries & columns, material handling axis drives, zero-backlash axis drives and electronic digital line shafting. Industries served include Material H, ling, Robotics, Automation, Machine Software and Aerospace.
Gearing: Internal gear design was optimized to provide an angular backlash of less than 1 arc-minutes in assembly, with the option of “in the discipline” adjustable backlash in the event that necessary.
Bearings: Input angular get in touch with bearings for high type speed, and robust outcome tapered-roller bearings for superior radial and axial load capability.
Housing: Aluminium housing once and for all heat dissipation, with essential source flange for servo motors and common mounting on any face.
Output: The productivity bore is available with a good compression-type hub or a ISO 9409-1 flange (see dimension web pages). We give a line of accessories to adjust these outputs to right shafting, Rack & Pinions, or other gearing types.
This gearbox utilizes a 30:1 ratio worm-travel reduction for applications that require extremely slow and smooth rotational motion. The worm-drive design not only minimizes backlash but likewise eliminates back-driving the gearmotor so a position can be kept even when power isn’t applied. The precision ground 3/8” stainless steel result shaft is backed by dual 3/8” ABEC 5 ball bearings to support a load from any orientation. The ¼” ABS plastic and aluminium structure offers a rigid framework without adding unneeded weight and is conveniently attached to any flat work surface by utilizing the base mounting tabs. Our Normal Spur Gear motors will continue to work with this gearbox (engine distributed separately). The Vertical Shaft Worm-Drive Gearbox is simply perfect for turn-tables, time-lapse devices and low-acceleration applications that require 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 ten minutes per rotation (at max speed)
now provides an economical right angle gearhead for employ with small NEMA 23 through 56 and similar compact metric servo and stepper motors. These reducers will be most appropriate for basic movement and type speeds of 2000 rpm where profile program 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, insert shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-style hub provides zero-backlash engine shaft connection
Aluminum diecast casing for low weight
Large output bearings accommodate higher radial loads
Inch or metric hollow bore with keyway, sole and dual plug-in shafts also available
Double lip productivity seals provide maximum protection against contaminants
Face or base installation alternatives, bolt on flanges and torque arms also available
Bronze wheels cast about the 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 electric motor bearings from radial and axial loads
Flexible coupling factor eliminates electric motor misalignment and bearing wear
Worm Gears are ideal angle drives providing huge speed ratios on comparatively brief center distances from 1/4” to 11”. When correctly attached and lubricated they function as quietist and smoothest jogging type of gearing. As a result of high ratios possible with worm gearing, maximal speed reduction can be accomplished in fewer 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 huge level on the helix angle of the worm. Multiple thread worms and gears with bigger helix angle prove 25% to 50% better than one thread worms. The mesh or engagement of worms with worm gears generates a sliding action triggering considerable friction and higher lack of efficiency beyond other styles of gearing. The utilization of hardened and surface worm swith bronze worm gears raises efficiency.
LUBRICATION can be an essential factor to improve efficiency found in worm gearing. Worm equipment action generates considerable high temperature, decreasing efficiency. The amount of vitality transmitted at a given temperature rises as the effectiveness of the gearing raises. Proper lubrication enhances effectiveness by minimizing friction and heat.
RATIOS of worm equipment sets are dependant on dividing the number of teeth in the gear by the amount of threads. Thus sole threads yield larger ratios than multiple threads. All EP. worm gear sets are available with either still left or right hand threads. EP. worm equipment sets are offered with Solitary, Double, Qua and Triple-druple Threads.
Safe practices PROVISION: Worm gearing shouldn’t be used as a locking mechanism to carry major weights where reversing action could cause harm or injury. In applications where potential harm is non-existent and self-locking is wanted against backward rotation then use of an individual thread worm with a minimal helix angle automatically locks the worm equipment travel against backward rotation.
MATERIAL recommended for worms is normally hardened steel and bronze for worm gears. However, depending on the application form unhardened metal worms operate adequately and even more economically with cast iron worm gears at 50% horsepower ratings. Furthermore to steel and hardenedsteel, worms can be purchased in nylon, bronze, stainless and aluminum; worm gears can be found in steel, hardened metal, stainless, metal, nylon and nonmetallic (phenolic).
EP also sells gear tooth measuring products called GEAR GAGES! Gear Gages decrease mistakes, save time and money when identifying and buying gears. These pitch templates are available in nine sets to identify all the normal pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Excellent Pitches, Coarse Pitches and Unusual Pitches. Refer to the section on GEAR GAGES for catalog figures when ordering.

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