EP offers a full selection of modular servo gearboxes /worm reducers. The modular design allows for configurations with motor source flange and result pinion for rack and pinion drives, together with solid result shafts, Hollow bore outcome, and source shafts for all the positioning applications. The modular style allows for common mounting of the gearbox in virtually any orientation.
Servo-Worm Reducers were especially developed for use with the most recent servo motors in applications that demand precise positioning and repeatability.
These reducers are suitable for applications in material handling, automation, equipment tool, and robotics.
The light-weight modular aluminum housing design allows for easy machine integration, and excellent heat dissipation. A wide variety of insight flanges and couplings can be found to allow easy mounting of nearly any servo-motor and custom flanges could be accommodated. Output configurations with pinion, hollow bore, or sturdy shaft are available and may be configured for insight with motor flange, free source shaft, or both no cost input shaft and electric motor flange.
An optimized worm equipment tooth design insures great efficiency while at exactly the same time decreasing backlash. Two degrees of backlash are available, Precise or Extra-specific, with backlash amounts to significantly less than 3 arc minutes.
Obtainable in 6 sizes
Ratios from 2 to 60:1
Torque Potential up to 4400 Lb.-Ft. (6000 Nm)
Input Boosts 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 range of servo gearboxes, designed to fit almost all servo motors on the market
Designed for the highest torsional stiffness and the lowest angular backlash, designed for 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 practical servomotors coupling dimensions.
The right 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 simply perfect for use in applications that demand high precise positioning, repeatability and performance. They were especially developed for employ with state-of-the-art servo electric motor technology, providing tight integration of the electric motor to the machine. Angular backlash of significantly less than 1 arc-minutes 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 variety of engine couplings and mounting flanges are available for assembly to almost all servo motors, and the hollow bore outcome can be used to mount end result shafts, pinion shafts, or other drive elements.
Standard 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 dished up include Material H, Automation, ling, Machine Device, Aerospace and Robotics.
Gearing: Internal gear style was optimized to supply an angular backlash of significantly less than 1 arc-minutes at assembly, with the option of “in the field” adjustable backlash in the event that necessary.
Bearings: Input angular contact bearings for high input speed, and robust end result tapered-roller bearings for great radial and axial load capacity.
Housing: Light weight aluminum housing for good heat dissipation, with essential insight 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 internet pages). We offer a line of equipment to adapt these outputs to straight shafting, Rack & Pinions, or other gearing types.
This gearbox utilizes a 30:1 ratio worm-drive reduction for applications that require extremely slow and smooth rotational motion. The worm-drive design not only minimizes backlash but as well eliminates back-driving the gearmotor so a posture can be kept even when power isn’t applied. The precision surface 3/8” stainless steel output shaft is backed by dual 3/8” ABEC 5 ball bearings to aid lots from any orientation. The ¼” ABS plastic and lightweight aluminum structure provides a rigid framework without adding unnecessary weight and is quickly attached to any flat surface by utilizing the bottom mounting tabs. Our Typical Spur Gear motors will continue to work with this gearbox (electric motor offered separately). The Vertical Shaft Worm-Drive Gearbox is exquisite for turn-tables, time-lapse devices and low-acceleration applications that want high precision and torque.
Motor RPM required = 1 / (minutes per rotation desired / 30)
Example: 1 / (10 minutes per rotation / 30) = 3 RPM motor had a need to achieve 10 minutes per rotation (at max speed)
now offers an economical right position gearhead for employ with small NEMA 23 through 56 and similar little metric servo and stepper motors. These reducers happen to be most appropriate for basic motion and type 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, place shafts optional
2D and 3D drawings obtainable online
Flexible servo motor interface
Clamp-design hub provides zero-backlash engine shaft connection
Aluminum diecast casing for low weight
Large output bearings accommodate higher radial loads
Inch or perhaps metric hollow bore with keyway, sole and dual plug-in shafts also available
Double lip end result seals provide maximal protection against contaminants
Face or base installation options, bolt on flanges and torque arms also available
Bronze wheels cast in the result shaft for higher strength
Hardened and floor worm shaft provides clean 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 factor eliminates electric motor misalignment and bearing wear
Worm Gears are best suited angle drives providing significant quickness ratios on comparatively short center distances from 1/4” to 11”. When correctly attached and lubricated they function as quietist and smoothest jogging type of gearing. Because of the high ratios likely with worm gearing, optimum speed reduction could be accomplished in less space than a great many other types of gearing. Worm and worm gears are powered by non-intersecting shafts at 90° angles.
EFFICIENCY of worm gear drives depends to a large level on the helix position of the worm. Multiple thread worms and gears with larger helix angle prove 25% to 50% better than sole 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 utilization of hardened and surface worm swith bronze worm gears boosts efficiency.
LUBRICATION can be an essential factor to improve efficiency found in worm gearing. Worm equipment action generates considerable heat, decreasing efficiency. The amount of ability transmitted at a given temperature rises as the productivity of the gearing boosts. Proper lubrication enhances productivity by lowering 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 single threads yield larger ratios than multiple threads. All EP. worm equipment sets are available with either still left or right hands threads. EP. worm equipment sets can be found with Qua, Double, Triple and Single-druple Threads.
Protection PROVISION: Worm gearing should not be used as a locking mechanism to carry heavy weights where reversing action could cause harm or damage. In applications where potential harm is nonexistent and self-locking is wanted against backward rotation in that case use of an individual thread worm with a minimal helix angle immediately locks the worm equipment drive against backward rotation.
Materials recommended for worms is certainly hardened steel and bronze for worm gears. Even so, depending on the application form unhardened metal worms operate adequately and extra economically with cast iron worm gears at 50% horsepower ratings. In addition to metal and hardenedsteel, worms can be found in aluminum, bronze, stainless and nylon; worm gears can be found in steel, hardened metal, stainless, aluminium, nylon and nonmetallic (phenolic).
EP also sells equipment tooth measuring units called GEAR GAGES! Gear Gages reduce mistakes, save money and time when identifying and buying gears. These pitch templates can be found in nine sets to recognize all the common pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, Exterior Involute Splines, Metric Module “MOD”, Stub Tooth, Excellent Pitches, Coarse Pitches and Unusual Pitches. Refer to the section on GEAR GAGES for catalog amounts when ordering.
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