EP offers a full selection of modular servo gearboxes /worm reducers. The modular style permits configurations with motor input flange and outcome pinion for rack and pinion drives, in addition to solid outcome shafts, Hollow bore result, and source shafts for all the positioning applications. The modular design and style allows for general mounting of the gearbox in any orientation.
Servo-Worm Reducers were especially developed for make use of with the most recent servo motors in applications that demand precise positioning and repeatability.
These reducers are suitable 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 are available to allow easy mounting of practically 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 type with motor flange, no cost type shaft, or both no cost input shaft and motor flange.
An optimized worm gear tooth design insures high efficiency while at exactly the same time decreasing backlash. Two levels of backlash are available, 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 Ability up to 4400 Lb.-Ft. (6000 Nm)
Input Boosts 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, made to fit virtually all servo motors on the market
Designed for the best torsional stiffness and the lowest angular backlash, meant for 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 conceivable servomotors coupling dimensions.
The right technical solution thanks to a comprehensive range of sizes, gear stages, transmission ratios, designs and non-standard designs.
High-Torque (HT) Servo-Worm Reducers
This standard range of Servo-Worm Reducers are ideal for use in applications that demand high performance, precise positioning and repeatability. They were especially developed for use with state-of-the-art servo engine technology, providing restricted integration of the electric motor 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 broad range of engine couplings and mounting flanges are available for assembly to virtually all servo motors, and the hollow bore end result can be used to mount result shafts, pinion shafts, or other drive elements.
Standard applications for these reducers include precision rotary axis drives, traveling gantries & columns, materials handling axis drives, zero-backlash axis drives and electronic line shafting. Industries offered 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 choice of “in the field” adjustable backlash if necessary.
Bearings: Input angular call bearings for high type speed, and robust result tapered-roller bearings for superior radial and axial load potential.
Housing: Light weight aluminum housing once and for all heat dissipation, with integral type flange for servo motors and common mounting on any encounter.
Output: The outcome bore is available with a compression-type hub or a ISO 9409-1 flange (see dimension webpages). We give a line of add-ons 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 only minimizes backlash but as well eliminates back-driving the gearmotor so a position can be placed even when power is not applied. The precision floor 3/8” stainless steel productivity shaft is backed by dual 3/8” ABEC 5 ball bearings to aid lots from any orientation. The ¼” ABS plastic and lightweight aluminum structure provides a rigid framework without adding needless weight and is easily mounted to any flat work surface by utilizing the bottom mounting tabs. Our Standard Spur Gear motors will continue to work with this gearbox (motor distributed separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse systems and low-quickness applications that require high accuracy and torque.
Motor RPM required = 1 / (mins per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor had a need to achieve ten minutes per rotation (in max speed)
now provides an economical right position gearhead for work with with small NEMA 23 through 56 and similar small metric servo and stepper motors. These reducers will be best suited for basic action and source speeds of 2000 rpm where profile application costs certainly 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 output shafts
Hollow output standard, insert shafts optional
2D and 3D drawings obtainable online
Flexible servo motor interface
Clamp-design hub provides zero-backlash motor shaft connection
Aluminum diecast housing for low weight
Large output bearings accommodate bigger radial loads
Inch or perhaps metric hollow bore with keyway, sole and dual plug-found in shafts also available
Double lip outcome seals provide optimum protection against contaminants
Face or base installation alternatives, bolt on flanges and torque arms also available
Bronze wheels cast about the end result shaft for higher strength
Hardened and surface worm shaft provides soft operation
Reducer completely sealed for general mounting and long-life lubrication
Two bearing worm support isolates engine bearings from radial and axial loads
Flexible coupling element eliminates electric motor misalignment and bearing wear
Worm Gears are right angle drives providing large swiftness ratios on comparatively brief center distances from 1/4” to 11”. When effectively attached and lubricated they function as quietist and smoothest jogging type of gearing. Because of the high ratios conceivable with worm gearing, maximal speed reduction can be accomplished in much less space than 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 big level on the helix angle of the worm. Multiple thread worms and gears with bigger helix angle prove 25% to 50% better than sole thread worms. The mesh or engagement of worms with worm gears creates a sliding action creating considerable friction and increased lack of efficiency beyond other types of gearing. The make use of hardened and ground worm swith bronze worm gears raises efficiency.
LUBRICATION is an essential factor to improve efficiency found in worm gearing. Worm equipment action generates considerable warmth, decreasing efficiency. The quantity of electricity transmitted at confirmed temperature boosts as the efficiency of the gearing raises. Proper lubrication enhances efficiency by reducing friction and heat.
RATIOS of worm equipment sets are dependant on dividing the amount of teeth in the gear by the amount of threads. Thus solo threads yield bigger ratios than multiple threads. All EP. worm gear sets can be found with either still left or right side threads. EP. worm gear sets can be found with Double, Triple, One and Qua-druple Threads.
SAFETY PROVISION: Worm gearing shouldn’t be used as a good locking mechanism to hold large weights where reversing actions could cause harm or personal injury. In applications where potential injury is nonexistent and self-locking is wanted against backward rotation then use of a single thread worm with a low helix angle quickly locks the worm gear drive against backward rotation.
Materials recommended for worms is hardened steel and bronze for worm gears. On the other hand, depending on the application form unhardened metal worms operate adequately and extra economically with cast iron worm gears at 50% horsepower ratings. Furthermore to steel and hardenedsteel, worms can be found in stainless, bronze, metal and nylon; worm gears are available in steel, hardened metal, stainless, metal, nylon and nonmetallic (phenolic).
EP also sells gear tooth measuring products called GEAR GAGES! Gear Gages reduce mistakes, save money and time when identifying and buying gears. These pitch templates can be purchased 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 Unusual Pitches. Refer to the section on GEAR GAGES for catalog amounts when ordering.

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