EP offers a full range of modular servo gearboxes /worm reducers. The modular style allows for configurations with motor source flange and result pinion for rack and pinion drives, and solid result shafts, Hollow bore outcome, and source shafts for all the positioning applications. The modular design allows for general mounting of the gearbox in any orientation.
Servo-Worm Reducers were especially developed for use with the latest servo motors in applications that demand exact positioning and repeatability.
These reducers are well suited for 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 type flanges and couplings are available to allow easy mounting of practically any servo-motor and custom flanges can be accommodated. Outcome configurations with pinion, hollow bore, or sturdy shaft are available and can be configured for source with motor flange, no cost source shaft, or both free input shaft and electric motor flange.
An optimized worm equipment tooth design insures high 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 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 range of servo gearboxes, made to fit almost all servo motors found on the market
Designed for the best torsional stiffness and the lowest angular backlash, to get the maximum torque and overhung loads
Bush with slots and hub clamp for servomotor coupling
Enhanced dimensional compactness because of direct servomotor coupling
Widest range of conceivable servomotors coupling dimensions.
The correct 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 perfect for use in applications that demand high repeatability, precise positioning and performance. They were specifically developed for make use of with state-of-the-art servo motor technology, providing restricted integration of the electric motor to the unit. Angular backlash of less than 1 arc-mins 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 selection of electric motor couplings and mounting flanges are available for assembly to virtually all servo motors, and the hollow bore end result works extremely well to mount outcome shafts, pinion shafts, or other drive elements.
Common applications for these reducers include precision rotary axis drives, traveling gantries & columns, materials handling axis drives, zero-backlash axis drives and digital line shafting. Industries dished up include Material H, ling, Aerospace, Robotics, Automation and Machine Tool.
Gearing: Internal gear style was optimized to provide an angular backlash of less than 1 arc-minutes at assembly, with the choice of “in the field” adjustable backlash if necessary.
Bearings: Input angular get in touch with bearings for high type speed, and robust result tapered-roller bearings for large radial and axial load capacity.
Housing: Aluminium housing for good heat dissipation, with essential input flange for servo motors and universal mounting on any deal with.
Output: The result bore is available with a compression-type hub or a ISO 9409-1 flange (see dimension web pages). We provide 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-generating the gearmotor so a posture can be held even when power is not applied. The precision floor 3/8” stainless steel productivity shaft is reinforced by dual 3/8” ABEC 5 ball bearings to support a load from any orientation. The ¼” ABS plastic and aluminum structure offers a rigid framework without adding unnecessary weight and is very easily attached to any flat surface by utilizing the base mounting tabs. Our Typical Spur Gear motors will work with this gearbox (engine distributed separately). The Vertical Shaft Worm-Drive Gearbox is exquisite for turn-tables, time-lapse devices and low-rate applications that require high precision and torque.
Motor RPM required = 1 / (a few minutes 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 provides an economical right angle gearhead for work with with small NEMA 23 through 56 and similar small metric servo and stepper motors. These reducers are best suited for basic movement and suggestions speeds of 2000 rpm where profile request 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 outcome shafts
Hollow output standard, put in shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-design hub provides zero-backlash engine shaft connection
Aluminum diecast housing for low weight
Large outcome bearings accommodate higher radial loads
Inch or metric hollow bore with keyway, sole and dual plug-in shafts also available
Double lip end result seals provide maximum protection against contaminants
Face or base mounting 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 simple operation
Reducer completely sealed for universal 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 best suited angle drives providing large rate ratios on comparatively brief center distances from 1/4” to 11”. When properly attached and lubricated they function as the quietist and smoothest working type of gearing. Due to the high ratios possible with worm gearing, maximum speed reduction could 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 sizable level on the helix position of the worm. Multiple thread worms and gears with bigger 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 leading to considerable friction and better lack of efficiency beyond other styles of gearing. The make use of hardened and surface worm swith bronze worm gears rises efficiency.
LUBRICATION is an essential factor to boost efficiency in worm gearing. Worm gear action generates considerable high temperature, decreasing efficiency. The volume of electric power transmitted at confirmed temperature rises as the efficiency of the gearing increases. Proper lubrication enhances productivity by lowering friction and heat.
RATIOS of worm gear sets are determined by dividing the quantity of teeth in the gear by the number of threads. Thus solo threads yield higher ratios than multiple threads. All EP. worm equipment sets are available with either still left or right hand threads. EP. worm equipment sets can be found with Triple, Qua, Solitary and Double-druple Threads.
Protection PROVISION: Worm gearing shouldn’t be used as a locking mechanism to hold large weights where reversing action can cause harm or harm. In applications where potential injury is nonexistent and self-locking is desired against backward rotation in that case use of an individual thread worm with a low helix angle instantly locks the worm equipment get against backward rotation.
MATERIAL recommended for worms is going to be hardened steel and bronze for worm gears. However, depending on the application form unhardened steel 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 aluminium, stainless, nylon and bronze; worm gears are available in steel, hardened steel, stainless, metal, nylon and nonmetallic (phenolic).
EP also sells gear tooth measuring devices called Equipment GAGES! Gear Gages reduce mistakes, save money and time when identifying and purchasing gears. These pitch templates can be found in nine sets to recognize all the standard pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Great Pitches, Coarse Pitches and Uncommon Pitches. Make reference to the section on GEAR GAGES for catalog quantities when ordering.

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