EP offers a complete selection of modular servo gearboxes /worm reducers. The modular design allows for configurations with motor suggestions flange and productivity pinion for rack and pinion drives, along with solid output shafts, Hollow bore result, and source shafts for all other positioning applications. The modular style allows for common mounting of the gearbox in any orientation.
Servo-Worm Reducers were specifically developed for work with with the most recent servo motors found in applications that demand precise positioning and repeatability.
These reducers are suited to applications in materials handling, automation, equipment tool, and robotics.
The light weight modular aluminum housing design permits easy machine integration, and excellent heat dissipation. A multitude of source flanges and couplings can be found to permit easy mounting of practically any servo-motor and custom flanges could be accommodated. End result configurations with pinion, hollow bore, or solid shaft are available and can be configured for source with motor flange, free input shaft, or both no cost input shaft and motor flange.
An optimized worm gear 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 levels 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 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
Wide range of servo gearboxes, designed to fit virtually all servo motors on the market
Designed for the highest torsional stiffness and the lowest angular backlash, pertaining to the maximum torque and overhung loads
Bush with slot machines and hub clamp for servomotor coupling
Enhanced dimensional compactness because of direct servomotor coupling
Widest range of likely 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 exquisite for use in applications that demand high repeatability, performance and precise positioning. They were especially developed for make use of with state-of-the-art servo electric motor technology, providing tight integration of the engine to the machine. Angular backlash of significantly less than 1 arc-moments is provided standard.
They are available in four sizes (50 mm to 100 mm center distance) 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 range of engine couplings and mounting flanges are available for assembly to nearly all servo motors, and the hollow bore output works extremely well to mount productivity shafts, pinion shafts, or other drive elements.
Usual applications for these reducers include precision rotary axis drives, traveling gantries & columns, material handling axis drives, zero-backlash axis drives and digital line shafting. Industries served include Material H, ling, Aerospace, Automation, Robotics and Machine Tool.
Gearing: Internal gear style was optimized to provide 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 get in touch with bearings for high source speed, and robust result tapered-roller bearings for superior radial and axial load ability.
Housing: Aluminium housing once and for all heat dissipation, with integral suggestions flange for servo motors and general mounting on any encounter.
Output: The outcome bore is available with a compression-type hub or a ISO 9409-1 flange (see dimension web pages). We give you a line of components to adjust these outputs to direct shafting, Rack & Pinions, or other gearing types.
This gearbox utilizes a 30:1 ratio worm-drive reduction for applications that want extremely slow and smooth rotational motion. The worm-drive design not only minimizes backlash but likewise eliminates back-traveling the gearmotor so a posture can be kept even when power is not applied. The precision ground 3/8” stainless steel result shaft is reinforced by dual 3/8” ABEC 5 ball bearings to support a load from any orientation. The ¼” ABS plastic and light weight aluminum structure offers a rigid framework without adding needless weight and is very easily attached to any flat surface by utilizing the base mounting tabs. Our Normal Spur Gear motors will work with this gearbox (engine purchased separately). The Vertical Shaft Worm-Drive Gearbox is ideal for turn-tables, time-lapse devices and low-swiftness applications that want high precision and torque.
Motor RPM required = 1 / (mins 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 offers an economical right position gearhead for work with with small NEMA 23 through 56 and similar little metric servo and stepper motors. These reducers are most appropriate for basic action and insight speeds of 2000 rpm where profile program 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 end result shafts
Hollow output standard, put in shafts optional
2D and 3D drawings obtainable online
Flexible servo motor interface
Clamp-design hub provides zero-backlash electric motor shaft connection
Aluminum diecast casing for low weight
Large output bearings accommodate larger radial loads
Inch or perhaps metric hollow bore with keyway, solo and dual plug-found in shafts also available
Double lip output seals provide optimum protection against contaminants
Face or base mounting options, bolt on flanges and torque arms also available
Bronze wheels cast in the outcome shaft for higher strength
Hardened and ground worm shaft provides easy operation
Reducer completely sealed for universal mounting and long-life lubrication
Two bearing worm support isolates electric motor bearings from radial and axial loads
Flexible coupling aspect eliminates electric motor misalignment and bearing wear
Worm Gears are best angle drives providing significant rate ratios on comparatively brief center distances from 1/4” to 11”. When effectively mounted and lubricated they function as quietist and smoothest working type of gearing. Due to high ratios conceivable with worm gearing, maximal speed reduction could be accomplished in fewer space than a great 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 level on the helix position of the worm. Multiple thread worms and gears with larger helix angle prove 25% to 50% better than single thread worms. The mesh or engagement of worms with worm gears creates a sliding action creating considerable friction and higher loss of efficiency beyond other styles of gearing. The use of hardened and floor worm swith bronze worm gears rises efficiency.
LUBRICATION is an essential factor to boost efficiency in worm gearing. Worm equipment action generates considerable heating, decreasing efficiency. How much ability transmitted at confirmed temperature rises as the proficiency of the gearing raises. Proper lubrication enhances proficiency by reducing friction and heat.
RATIOS of worm gear sets are determined by dividing the amount of teeth in the apparatus by the amount of threads. Thus single threads yield higher ratios than multiple threads. All EP. worm gear sets can be found with either left or right hand threads. EP. worm gear sets can be found with Double, Solo, Qua and Triple-druple Threads.
Safeness PROVISION: Worm gearing shouldn’t be used as a locking mechanism to carry large weights where reversing action can cause harm or harm. In applications where potential harm is non-existent and self-locking is wanted against backward rotation then use of a single thread worm with a low helix angle automatically locks the worm equipment travel against backward rotation.
MATERIAL recommended for worms is definitely hardened steel and bronze for worm gears. On the other hand, depending on the application form unhardened metal worms operate adequately and extra economically with cast iron worm gears at 50% horsepower ratings. Furthermore to metal and hardenedsteel, worms are available in stainless, bronze, nylon and aluminum; worm gears can be found in steel, hardened metal, stainless, aluminum, nylon and non-metallic (phenolic).
EP also sells equipment tooth measuring equipment called GEAR GAGES! Gear Gages reduce mistakes, save time and money when identifying and ordering gears. These pitch templates are available in nine sets to identify all the standard pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, Exterior Involute Splines, Metric Module “MOD”, Stub Tooth, Fine Pitches, Coarse Pitches and Uncommon Pitches. Make reference to the section on Equipment GAGES for catalog numbers when ordering.

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