EP offers a full range of modular servo gearboxes /worm reducers. The modular design allows for configurations with motor type flange and output pinion for rack and pinion drives, and solid outcome shafts, Hollow bore end result, and input shafts for all the positioning applications. The modular style allows for universal mounting of the gearbox in any orientation.
Servo-Worm Reducers were especially developed for make use of with the latest servo motors in applications that demand precise positioning and repeatability.
These reducers are suited to 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 multitude of input flanges and couplings are available to permit easy mounting of almost any servo-motor and custom flanges can be accommodated. End result configurations with pinion, hollow bore, or sturdy shaft are available and will be configured for type with motor flange, no cost source shaft, or both no cost input shaft and motor flange.
An optimized worm gear tooth design insures substantial efficiency while at exactly the same time decreasing backlash. Two degrees of backlash are available, Precise or Extra-exact, with backlash levels to significantly less than 3 arc minutes.
Available 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 levels – Precise and Extra-precise.
Modular design compatible with rack & pinion system
4 input styles
7 output styles
28 possible standard configurations
Features
Wide range of servo gearboxes, made to fit virtually all servo motors on the market
Designed for the best 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
Benefits
Enhanced dimensional compactness because of direct servomotor coupling
Widest range of likely servomotors coupling dimensions.
The correct technical solution because of a comprehensive selection of sizes, gear stages, transmission ratios, designs and nonstandard designs.
High-Torque (HT) Servo-Worm Reducers
This standard range of Servo-Worm Reducers are simply perfect for use in applications that demand high precise positioning, repeatability and performance. They were specifically developed for work with with state-of-the-art servo electric motor technology, providing limited integration of the electric motor to the machine. Angular backlash of significantly less than 1 arc-a few minutes is provided standard.
They can be purchased 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 variety of motor couplings and mounting flanges are for sale to assembly to virtually all servo motors, and the hollow bore result works extremely well to mount result shafts, pinion shafts, or other drive elements.
Normal applications for these reducers include precision rotary axis drives, traveling gantries & columns, material handling axis drives, zero-backlash axis drives and digital line shafting. Industries dished up include Material H, ling, Machine Device, Aerospace, Automation and Robotics.
Gearing: Internal gear design was optimized to provide an angular backlash of less than 1 arc-minutes in assembly, with the choice of “in the discipline” adjustable backlash in the event necessary.
Bearings: Input angular call bearings for high type speed, and robust end result tapered-roller bearings for great radial and axial load capability.
Housing: Aluminium housing once and for all heat dissipation, with essential source flange for servo motors and general mounting on any deal with.
Output: The result bore is available with a good compression-type hub or a ISO 9409-1 flange (see dimension pages). We give a line of gadgets to adapt these outputs to direct shafting, Rack & Pinions, or other gearing types.
This gearbox utilizes a 30:1 ratio worm-get reduction for applications that require extremely slow and smooth rotational motion. The worm-drive design not only minimizes backlash but as well eliminates back-generating the gearmotor so a posture can be kept even when power isn’t applied. The precision floor 3/8” stainless steel result shaft is reinforced by dual 3/8” ABEC 5 ball bearings to aid lots from any orientation. The ¼” ABS plastic and lightweight aluminum structure offers a rigid framework without adding unnecessary weight and is quickly attached to any flat work surface by utilizing the base mounting tabs. Our Standard Spur Gear motors will continue to work with this gearbox (electric motor marketed 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 / (moments per rotation desired / 30)
Example: 1 / (10 minutes per rotation / 30) = 3 RPM motor needed to achieve ten minutes per rotation (in max speed)
now offers an economical right angle gearhead for use with small NEMA 23 through 56 and similar little metric servo and stepper motors. These reducers will be best suited for basic movement and input speeds of 2000 rpm where profile application costs 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 result shafts
Hollow output standard, put in shafts optional
2D and 3D drawings obtainable online
Flexible servo motor interface
Clamp-style hub provides zero-backlash engine shaft connection
Aluminum diecast casing for low weight
Large productivity bearings accommodate higher radial loads
Inch or metric hollow bore with keyway, solitary and dual plug-in shafts also available
Double lip end result seals provide maximal protection against contaminants
Face or base installation choices, bolt on flanges and torque arms also available
Bronze wheels cast on the end result shaft for higher strength
Hardened and ground worm shaft provides smooth operation
Reducer completely sealed for common mounting and long-life lubrication
Two bearing worm support isolates engine bearings from radial and axial loads
Flexible coupling element eliminates motor misalignment and bearing wear
Worm Gears are best suited angle drives providing significant velocity ratios on comparatively short center distances from 1/4” to 11”. When effectively mounted and lubricated they function as quietist and smoothest running type of gearing. As a result of high ratios possible with worm gearing, optimum speed reduction can be accomplished in 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 degree on the helix position of the worm. Multiple thread worms and gears with larger helix angle prove 25% to 50% better than single thread worms. The mesh or engagement of worms with worm gears generates a sliding action creating considerable friction and better lack of efficiency beyond other types of gearing. The use of hardened and floor worm swith bronze worm gears boosts efficiency.
LUBRICATION is an essential factor to improve efficiency found in worm gearing. Worm equipment action generates considerable high temperature, decreasing efficiency. The quantity of electric power transmitted at a given temperature raises as the effectiveness of the gearing increases. Proper lubrication enhances efficiency by minimizing friction and heat.
RATIOS of worm equipment sets are determined by dividing the number of teeth in the gear by the number of threads. Thus solitary threads yield higher ratios than multiple threads. All EP. worm equipment sets are available with either still left or right side threads. EP. worm gear sets are offered with Qua, Triple, One and Double-druple Threads.
Basic safety PROVISION: Worm gearing should not be used as a locking mechanism to hold large 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 then use of a single thread worm with a low helix angle quickly locks the worm equipment drive against backward rotation.
Materials recommended for worms is hardened steel and bronze for worm gears. On the other hand, depending on the application unhardened metal worms operate adequately and extra economically with cast iron worm gears at 50% horsepower ratings. In addition to steel and hardenedsteel, worms are available in bronze, nylon, stainless and aluminum; worm gears can be purchased in steel, hardened metal, stainless, light weight aluminum, nylon and nonmetallic (phenolic).
EP also sells equipment tooth measuring gadgets called Equipment GAGES! Gear Gages lessen mistakes, save money and time when identifying and purchasing gears. These pitch templates can be found in nine sets to identify all the normal pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Good Pitches, Coarse Pitches and Uncommon Pitches. Refer to the section on Equipment GAGES for catalog figures when ordering.

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