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EP offers a complete selection of modular servo gearboxes /worm reducers. The modular style allows for configurations with motor source flange and result pinion for rack and pinion drives, in addition to solid end result shafts, Hollow bore output, and source shafts for all the positioning applications. The modular design allows for general mounting of the gearbox in virtually any orientation.
Servo-Worm Reducers were specifically developed for make use of with the most recent servo motors in applications that demand specific positioning and repeatability.
These reducers are suited to applications in material 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 source flanges and couplings can be found to permit easy mounting of nearly any servo-motor and tailor made flanges can be accommodated. Productivity configurations with pinion, hollow bore, or solid shaft are available and can be configured for type with motor flange, free suggestions shaft, or both free of charge input shaft and motor flange.
An optimized worm equipment tooth design insures huge efficiency while at the same time decreasing backlash. Two degrees of backlash are available, Precise or Extra-exact, with backlash amounts to significantly less than 3 arc minutes.
Available in 6 sizes
Ratios from 2 to 60:1
Torque Capability up to 4400 Lb.-Ft. (6000 Nm)
Input Speeds up to 6000 RPM
Two backlash levels – 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 highest torsional stiffness and the lowest angular backlash, to get the utmost torque and overhung loads
Bush with slot machine games and hub clamp for servomotor coupling
Enhanced dimensional compactness due to direct servomotor coupling
Widest range of conceivable servomotors coupling dimensions.
The right technical solution because of 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 perfect for use in applications that demand high precise positioning, repeatability and performance. They were especially developed for work with with state-of-the-art servo engine technology, providing tight 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 range) with input speeds up 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 electric motor couplings and mounting flanges are for sale to assembly to practically all servo motors, and the hollow bore end result can be utilised to mount result shafts, pinion shafts, or other drive elements.
Regular 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 Device and Aerospace.
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 field” adjustable backlash in the event that necessary.
Bearings: Input angular contact bearings for high suggestions speed, and robust output tapered-roller bearings for large radial and axial load capability.
Housing: Aluminium housing for good heat dissipation, with integral suggestions flange for servo motors and common mounting on any encounter.
Output: The result bore is available with a good compression-type hub or a ISO 9409-1 flange (see dimension internet pages). We give a line of components 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 require extremely slow and smooth rotational motion. The worm-drive design not merely minimizes backlash but as well eliminates back-traveling the gearmotor so a position can be held even when power is not applied. The precision surface 3/8” stainless steel productivity shaft is supported by dual 3/8” ABEC 5 ball bearings to aid a load from any orientation. The ¼” ABS plastic and lightweight aluminum structure provides a rigid framework without adding unneeded weight and is quickly installed to any flat surface by utilizing the base mounting tabs. Our Normal Spur Gear motors will continue to work with this gearbox (electric motor distributed separately). The Vertical Shaft Worm-Drive Gearbox is simply perfect for turn-tables, time-lapse systems and low-quickness 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 offers an economical right position gearhead for use with small NEMA 23 through 56 and similar compact metric servo and stepper motors. These reducers happen to be most appropriate for basic movement and input speeds of 2000 rpm where profile request 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 outcome shafts
Hollow output standard, put in shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-style hub provides zero-backlash engine shaft connection
Aluminum diecast housing for low weight
Large end result bearings accommodate higher radial loads
Inch or perhaps metric hollow bore with keyway, sole and dual plug-found in shafts also available
Double lip end result seals provide maximum protection against contaminants
Face or base installation options, bolt on flanges and torque hands also available
Bronze wheels cast in the end result shaft for higher strength
Hardened and surface worm shaft provides simple operation
Reducer completely sealed for common mounting and long-life lubrication
Two bearing worm support isolates electric motor bearings from radial and axial loads
Flexible coupling element eliminates electric motor misalignment and bearing wear
Worm Gears are best angle drives providing huge velocity ratios on comparatively brief center distances from 1/4” to 11”. When properly installed and lubricated they function as quietist and smoothest operating type of gearing. As a result of high ratios feasible with worm gearing, optimum speed reduction could be accomplished in fewer space than a great many other types of gearing. Worm and worm gears are powered by nonintersecting 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 higher helix angle prove 25% to 50% more efficient than one thread worms. The mesh or engagement of worms with worm gears creates a sliding action triggering considerable friction and greater loss of efficiency beyond other types of gearing. The usage of hardened and floor worm swith bronze worm gears increases efficiency.
LUBRICATION is an essential factor to boost efficiency in worm gearing. Worm equipment action generates considerable temperature, decreasing efficiency. The quantity of vitality transmitted at confirmed temperature rises as the proficiency of the gearing increases. Proper lubrication enhances productivity by minimizing 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 higher ratios than multiple threads. All EP. worm equipment sets are available with either still left or right hands threads. EP. worm gear sets can be found with Solitary, Triple, Double and Qua-druple Threads.
Safe practices PROVISION: Worm gearing should not be used as a good locking mechanism to hold major weights where reversing action can cause harm or personal injury. In applications where potential harm is nonexistent and self-locking is preferred against backward rotation then use of an individual thread worm with a minimal helix angle automatically locks the worm equipment drive against backward rotation.
MATERIAL recommended for worms is going to be hardened steel and bronze for worm gears. Even so, depending on the application unhardened steel worms operate adequately and more economically with cast iron worm gears at 50% horsepower ratings. In addition to metal and hardenedsteel, worms can be purchased in bronze, stainless, aluminium and nylon; worm gears can be purchased in steel, hardened metal, stainless, aluminum, nylon and non-metallic (phenolic).
EP also sells equipment tooth measuring devices called GEAR GAGES! Gear Gages decrease mistakes, save time and money when identifying and ordering gears. These pitch templates can be found in nine sets to recognize all the typical pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Great Pitches, Coarse Pitches and Uncommon Pitches. Refer to the section on Equipment GAGES for catalog figures when ordering.

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