EP offers a full selection of modular servo gearboxes /worm reducers. The modular design allows for configurations with motor suggestions flange and outcome pinion for rack and pinion drives, and also solid result shafts, Hollow bore output, and input shafts for all the positioning applications. The modular design and style allows for general mounting of the gearbox in virtually any orientation.
Servo-Worm Reducers were especially developed for employ with the most recent servo motors in applications that demand exact positioning and repeatability.
These reducers are ideal 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 suggestions flanges and couplings can be found to permit easy mounting of practically any servo-motor and custom flanges can be accommodated. Result configurations with pinion, hollow bore, or stable shaft are available and will be configured for input with motor flange, free of charge input shaft, or both no cost input shaft and electric motor flange.
An optimized worm equipment tooth design insures great efficiency while at the same time decreasing backlash. Two levels of backlash are available, Precise or Extra-exact, with backlash amounts 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 Speeds up 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 variety of servo gearboxes, designed to fit almost all servo motors found on the market
Designed for the best torsional stiffness and the cheapest angular backlash, to get the utmost torque and overhung loads
Bush with slot machines and hub clamp for servomotor coupling
Benefits
Enhanced dimensional compactness due to direct servomotor coupling
Widest range of conceivable servomotors coupling dimensions.
The right technical solution thanks to 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 repeatability, performance and precise positioning. They were particularly developed for employ with state-of-the-art servo engine technology, providing tight integration of the engine 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 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 almost all servo motors, and the hollow bore end result can be utilised 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 electronic line shafting. Industries served include Material H, ling, Automation, Machine Application, Robotics and Aerospace.
Gearing: Internal gear style was optimized to supply an angular backlash of less than 1 arc-minutes at assembly, with the option of “in the discipline” adjustable backlash in the event necessary.
Bearings: Input angular call bearings for high type speed, and robust result 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 general mounting on any deal with.
Output: The output bore is available with a compression-type hub or a good ISO 9409-1 flange (see dimension internet pages). We give you a line of components to adjust 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 merely minimizes backlash but as well eliminates back-traveling the gearmotor so a posture can be held even when power isn’t applied. The precision surface 3/8” stainless steel outcome shaft is supported by dual 3/8” ABEC 5 ball bearings to support lots from any orientation. The ¼” ABS plastic and metal structure provides a rigid framework without adding unneeded weight and is easily installed to any flat work surface by utilizing the base mounting tabs. Our Common Spur Gear motors will work with this gearbox (engine purchased separately). The Vertical Shaft Worm-Drive Gearbox is exquisite 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 / (ten minutes per rotation / 30) = 3 RPM motor needed to achieve 10 minutes per rotation (at max speed)
now offers an economical right angle gearhead for make use of with small NEMA 23 through 56 and similar compact metric servo and stepper motors. These reducers happen to be best suited for basic movement and source speeds of 2000 rpm where profile request 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, insert shafts optional
2D and 3D drawings obtainable online
Flexible servo motor interface
Clamp-design hub provides zero-backlash electric motor shaft connection
Aluminum diecast housing for low weight
Large output bearings accommodate higher radial loads
Inch or metric hollow bore with keyway, single and dual plug-in shafts also available
Double lip 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 result shaft for higher strength
Hardened and floor 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 right angle drives providing huge speed ratios on comparatively short center distances from 1/4” to 11”. When properly installed and lubricated they function as the quietist and smoothest working type of gearing. Due to the high ratios likely with worm gearing, optimum speed reduction could be accomplished in fewer 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 huge extent on the helix angle of the worm. Multiple thread worms and gears with larger helix angle prove 25% to 50% better than solitary thread worms. The mesh or engagement of worms with worm gears generates a sliding action triggering considerable friction and increased lack of efficiency beyond other types of gearing. The use of hardened and ground worm swith bronze worm gears increases efficiency.
LUBRICATION is an essential factor to improve efficiency in worm gearing. Worm gear action generates considerable high temperature, decreasing efficiency. The amount of power transmitted at a given temperature increases as the effectiveness of the gearing increases. Proper lubrication enhances productivity 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 solitary threads yield higher ratios than multiple threads. All EP. worm gear sets can be found with either left or right hands threads. EP. worm gear sets are offered with Solo, Qua, Double and Triple-druple Threads.
Safeness PROVISION: Worm gearing shouldn’t be used as a locking mechanism to hold large weights where reversing actions could cause harm or injury. In applications where potential damage is non-existent and self-locking is wanted against backward rotation in that case use of an individual thread worm with a minimal helix angle automatically locks the worm gear drive against backward rotation.
Materials recommended for worms is certainly hardened steel and bronze for worm gears. On the other hand, depending on the application form unhardened metal worms operate adequately and even more economically with cast iron worm gears at 50% horsepower ratings. In addition to steel and hardenedsteel, worms can be purchased in stainless, bronze, nylon and aluminum; worm gears can be found in steel, hardened steel, stainless, aluminum, nylon and nonmetallic (phenolic).
EP also sells gear tooth measuring products called Equipment GAGES! Gear Gages reduce mistakes, save money and time when identifying and ordering gears. These pitch templates can be found in nine sets to recognize all the normal pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, Exterior Involute Splines, Metric Module “MOD”, Stub Tooth, Good Pitches, Coarse Pitches and Uncommon Pitches. Make reference to the section on GEAR GAGES for catalog amounts when ordering.

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