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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, and also solid outcome shafts, Hollow bore output, and type shafts for all the positioning applications. The modular design allows for common mounting of the gearbox in any orientation.
Servo-Worm Reducers were especially developed for employ with the most recent servo motors found in applications that demand specific positioning and repeatability.
These reducers are ideal for applications in material 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 suggestions flanges and couplings can be found to permit easy mounting of almost any servo-motor and custom flanges could be accommodated. Output configurations with pinion, hollow bore, or stable shaft are available and will be configured for suggestions with motor flange, no cost type shaft, or both free of charge input shaft and electric motor flange.
An optimized worm gear tooth design insures great efficiency while at exactly the same time decreasing backlash. Two levels of backlash are available, Precise or Extra-specific, with backlash levels to less than 3 arc minutes.
Obtainable in 6 sizes
Ratios from 2 to 60:1
Torque Capability up to 4400 Lb.-Ft. (6000 Nm)
Input Boosts to 6000 RPM
Two backlash levels – 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 cheapest angular backlash, intended for the utmost torque and overhung loads
Bush with slots and hub clamp for servomotor coupling
Enhanced dimensional compactness due to direct servomotor coupling
Widest range of feasible servomotors coupling dimensions.
The correct 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 range of Servo-Worm Reducers are ideal for use in applications that demand high precise positioning, repeatability and performance. They were particularly developed for use with state-of-the-art servo engine technology, providing restricted integration of the motor to the machine. Angular backlash of less than 1 arc-minutes 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 broad range of motor couplings and mounting flanges are for sale to assembly to almost all servo motors, and the hollow bore outcome can be utilized to mount outcome 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 served include Material H, Automation, ling, Robotics, Aerospace and Machine Tool.
Gearing: Internal gear style was optimized to supply an angular backlash of less than 1 arc-minutes in assembly, with the option of “in the discipline” adjustable backlash if necessary.
Bearings: Input angular contact bearings for high type speed, and robust output tapered-roller bearings for great radial and axial load capability.
Housing: Light weight aluminum housing once and for all heat dissipation, with essential input flange for servo motors and common mounting on any face.
Output: The end result bore is available with a good compression-type hub or a good ISO 9409-1 flange (see dimension webpages). We provide a line of accessories to adapt these outputs to right shafting, Rack & Pinions, or other gearing types.
This gearbox utilizes a 30:1 ratio worm-get reduction for applications that want extremely slow and smooth rotational motion. The worm-drive design not only minimizes backlash but also eliminates back-driving the gearmotor so a position can be kept even when power isn’t applied. The precision surface 3/8” stainless steel output shaft is reinforced by dual 3/8” ABEC 5 ball bearings to aid lots from any orientation. The ¼” ABS plastic and aluminium structure provides a rigid framework without adding unneeded weight and is easily installed to any flat work surface by utilizing the bottom mounting tabs. Our Common Spur Gear motors will work with this gearbox (motor distributed separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse systems and low-acceleration applications that require high precision 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 provides an economical right angle gearhead for employ with small NEMA 23 through 56 and similar small metric servo and stepper motors. These reducers happen to be most appropriate for basic movement and input 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 result shafts
Hollow output standard, put in shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-design hub provides zero-backlash electric motor shaft connection
Aluminum diecast casing for low weight
Large productivity bearings accommodate higher radial loads
Inch or metric hollow bore with keyway, one and dual plug-found in shafts also available
Double lip productivity seals provide maximum protection against contaminants
Face or base mounting alternatives, bolt on flanges and torque hands also available
Bronze wheels cast about the end result shaft for higher strength
Hardened and surface worm shaft provides smooth 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 component eliminates motor misalignment and bearing wear
Worm Gears are ideal angle drives providing huge speed ratios on comparatively short center distances from 1/4” to 11”. When correctly attached and lubricated they function as the quietist and smoothest running type of gearing. As a result of high ratios feasible with worm gearing, optimum speed reduction can be accomplished in fewer space than many other types of gearing. Worm and worm gears are powered by nonintersecting shafts at 90° angles.
EFFICIENCY of worm gear drives depends to a big degree on the helix angle of the worm. Multiple thread worms and gears with higher helix angle prove 25% to 50% better than sole thread worms. The mesh or engagement of worms with worm gears generates a sliding action leading to considerable friction and greater loss of efficiency beyond other styles of gearing. The make use of hardened and ground worm swith bronze worm gears boosts efficiency.
LUBRICATION is an essential factor to boost efficiency in worm gearing. Worm gear action generates considerable high temperature, decreasing efficiency. The number of electric power transmitted at a given temperature boosts as the performance of the gearing increases. Proper lubrication enhances productivity by lowering friction and heat.
RATIOS of worm gear sets are dependant on dividing the number 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 left or right side threads. EP. worm gear sets can be found with Single, Double, Triple and Qua-druple Threads.
Safe practices PROVISION: Worm gearing shouldn’t be used as a locking mechanism to carry heavy weights where reversing actions could cause harm or personal injury. In applications where potential injury is nonexistent and self-locking is preferred against backward rotation in that case use of a single thread worm with a minimal helix angle immediately locks the worm gear drive against backward rotation.
Materials recommended for worms is usually hardened steel and bronze for worm gears. Nevertheless, depending on the application form unhardened steel worms operate adequately and considerably more economically with cast iron worm gears at 50% horsepower ratings. In addition to steel and hardenedsteel, worms can be purchased in nylon, bronze, lightweight aluminum and stainless; worm gears are available in steel, hardened steel, stainless, lightweight aluminum, nylon and non-metallic (phenolic).
EP also sells equipment tooth measuring gadgets called GEAR GAGES! Gear Gages lessen mistakes, save money and time when identifying and buying gears. These pitch templates can be purchased in nine sets to identify all the normal pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, Exterior Involute Splines, Metric Module “MOD”, Stub Tooth, Excellent Pitches, Coarse Pitches and Unusual Pitches. Make reference to the section on Equipment GAGES for catalog quantities when ordering.

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