EP offers a complete range of modular servo gearboxes /worm reducers. The modular style allows for configurations with motor source flange and end result pinion for rack and pinion drives, and solid productivity shafts, Hollow bore outcome, and input shafts for all other positioning applications. The modular style allows for general mounting of the gearbox in virtually any orientation.
Servo-Worm Reducers were especially developed for make use of with the latest servo motors found in applications that demand specific positioning and repeatability.
These reducers are suited to applications in materials 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 almost any servo-motor and custom flanges can be accommodated. End result configurations with pinion, hollow bore, or stable shaft are available and may be configured for suggestions with motor flange, no cost suggestions shaft, or both free of charge input shaft and engine flange.
An optimized worm equipment tooth design insures substantial efficiency while at the same time decreasing backlash. Two levels of backlash can be found, 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 Ability up to 4400 Lb.-Ft. (6000 Nm)
Input Boosts to 6000 RPM
Two backlash amounts – Precise and Extra-precise.
Modular design appropriate for rack & pinion system
4 input styles
7 output styles
28 possible standard configurations
Features
Wide range of servo gearboxes, designed to fit virtually all servo motors found on the market
Designed for the highest torsional stiffness and the cheapest angular backlash, intended for the utmost torque and overhung loads
Bush with slots and hub clamp for servomotor coupling
Benefits
Enhanced dimensional compactness because of direct servomotor coupling
Widest range of practical servomotors coupling dimensions.
The right technical solution because of a comprehensive range of sizes, gear stages, transmission ratios, designs and nonstandard designs.
High-Torque (HT) Servo-Worm Reducers
This standard selection of Servo-Worm Reducers are perfect for use in applications that demand high repeatability, performance and precise positioning. They were specifically developed for use with state-of-the-art servo motor technology, providing limited integration of the engine to the machine. Angular backlash of less than 1 arc-minutes is provided standard.
They are available in four sizes (50 mm to 100 mm center length) 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 broad range 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.
Usual 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, Aerospace, Robotics and Machine Tool.
Gearing: Internal gear style was optimized to supply an angular backlash of significantly less than 1 arc-minutes at assembly, with the choice of “in the field” adjustable backlash in the event that necessary.
Bearings: Input angular call bearings for high suggestions speed, and robust productivity tapered-roller bearings for great radial and axial load ability.
Housing: Light weight aluminum housing once and for all heat dissipation, with essential type flange for servo motors and universal mounting on any face.
Output: The end result bore is available with a good compression-type hub or a ISO 9409-1 flange (see dimension web pages). We provide a line of equipment to adjust these outputs to direct 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-generating the gearmotor so a position can be kept even when power isn’t applied. The precision ground 3/8” stainless steel outcome shaft is backed by dual 3/8” ABEC 5 ball bearings to support lots from any orientation. The ¼” ABS plastic and aluminum structure provides a rigid framework without adding unnecessary weight and is easily attached to any flat work surface by utilizing the bottom mounting tabs. Our Common Spur Gear motors will continue to work with this gearbox (electric motor sold separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse systems and low-speed applications that want high accuracy and torque.
Motor RPM required = 1 / (mins per rotation desired / 30)
Example: 1 / (10 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 little metric servo and stepper motors. These reducers happen to be most appropriate for basic action and type speeds of 2000 rpm where profile application 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 output shafts
Hollow output standard, put in shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-design hub provides zero-backlash electric motor shaft connection
Aluminum diecast housing for low weight
Large productivity bearings accommodate higher radial loads
Inch or metric hollow bore with keyway, one and dual plug-in shafts also available
Double lip productivity seals provide maximum protection against contaminants
Face or base installation choices, bolt on flanges and torque arms also available
Bronze wheels cast in the output shaft for higher strength
Hardened and ground 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 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 effectively attached and lubricated they function as quietist and smoothest operating type of gearing. Due to the high ratios likely with worm gearing, optimum speed reduction could be accomplished in less space than many other types of gearing. Worm and worm gears operate on nonintersecting shafts at 90° angles.
EFFICIENCY of worm gear drives depends to a large degree on the helix angle of the worm. Multiple thread worms and gears with larger helix angle prove 25% to 50% more efficient than solo thread worms. The mesh or engagement of worms with worm gears produces a sliding action triggering considerable friction and better loss of efficiency beyond other types of gearing. The make use of hardened and ground worm swith bronze worm gears raises efficiency.
LUBRICATION can be an essential factor to boost efficiency in worm gearing. Worm equipment action generates considerable heat, decreasing efficiency. The amount of electricity transmitted at confirmed temperature rises as the performance of the gearing rises. Proper lubrication enhances performance by lowering friction and heat.
RATIOS of worm gear sets are dependant on dividing the number of teeth in the apparatus by the number of threads. Thus sole threads yield larger ratios than multiple threads. All EP. worm equipment sets can be found with either still left or right side threads. EP. worm equipment sets are offered with Qua, Double, Single and Triple-druple Threads.
Basic safety PROVISION: Worm gearing shouldn’t be used as a locking mechanism to hold large weights where reversing actions can cause harm or damage. In applications where potential injury is nonexistent and self-locking is preferred against backward rotation after that use of an individual thread worm with a low helix angle automatically locks the worm gear travel against backward rotation.
MATERIAL recommended for worms is normally 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. Furthermore to metal and hardenedsteel, worms can be found in nylon, stainless, bronze and aluminum; worm gears are available in steel, hardened steel, stainless, aluminium, nylon and nonmetallic (phenolic).
EP also sells equipment tooth measuring devices called GEAR GAGES! Gear Gages reduce mistakes, save money and time when identifying and purchasing gears. These pitch templates can be purchased in nine sets to identify all the typical 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 quantities when ordering.

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