EP offers a complete selection of modular servo gearboxes /worm reducers. The modular design permits configurations with motor input flange and output pinion for rack and pinion drives, together with solid output shafts, Hollow bore end result, and type shafts for all other positioning applications. The modular design and style allows for universal mounting of the gearbox in virtually any orientation.
Servo-Worm Reducers were particularly developed for use with the latest servo motors found in applications that demand precise positioning and repeatability.
These reducers are suitable for applications in material handling, automation, machine 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 are available to allow easy mounting of almost any servo-motor and tailor made flanges can be accommodated. End result configurations with pinion, hollow bore, or sound shaft are available and will be configured for source with motor flange, no cost source shaft, or both free input shaft and engine flange.
An optimized worm gear tooth design insures high efficiency while at exactly the same time decreasing backlash. Two degrees of backlash are available, Precise or Extra-specific, with backlash amounts to 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 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 range of servo gearboxes, designed to fit almost all servo motors on the market
Designed for the highest torsional stiffness and the cheapest angular backlash, to get 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 thanks to a comprehensive selection of sizes, gear stages, transmission ratios, designs and non-standard designs.
High-Torque (HT) Servo-Worm Reducers
This standard range of Servo-Worm Reducers are perfect for use in applications that demand high performance, repeatability and precise positioning. They were specifically developed for make use of with state-of-the-art servo electric motor technology, providing tight integration of the motor to the unit. Angular backlash of less than 1 arc-a few minutes is provided standard.
They can be purchased 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 range of motor couplings and mounting flanges are for sale to assembly to almost all servo motors, and the hollow bore end result can be used to mount productivity 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 line shafting. Industries dished up include Material H, ling, Automation, Aerospace, Robotics and Machine Tool.
Gearing: Internal gear style was optimized to supply an angular backlash of less than 1 arc-minutes at assembly, with the choice of “in the field” adjustable backlash in the event that necessary.
Bearings: Input angular contact bearings for high type speed, and robust output tapered-roller bearings for large radial and axial load capacity.
Housing: Light weight aluminum housing once and for all heat dissipation, with integral input flange for servo motors and common mounting on any face.
Output: The end result bore is available with a good compression-type hub or a good ISO 9409-1 flange (see dimension internet pages). We offer a line of accessories to adjust these outputs to right shafting, Rack & Pinions, or other gearing types.
This gearbox utilizes a 30:1 ratio worm-get reduction for applications that require extremely slow and smooth rotational motion. The worm-drive design not merely minimizes backlash but likewise eliminates back-generating the gearmotor so a position can be kept even when power isn’t applied. The precision surface 3/8” stainless steel outcome shaft is backed by dual 3/8” ABEC 5 ball bearings to support a load from any orientation. The ¼” ABS plastic and aluminium structure provides a rigid framework without adding unnecessary weight and is conveniently mounted to any flat work surface by utilizing the base mounting tabs. Our Typical Spur Gear motors will work with this gearbox (motor offered separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse devices and low-velocity applications that want high accuracy and torque.
Motor RPM required = 1 / (moments 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 provides an economical right position gearhead for make use of with small NEMA 23 through 56 and similar little metric servo and stepper motors. These reducers are best suited for basic movement and source speeds of 2000 rpm where profile application 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, insert 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 result bearings accommodate larger radial loads
Inch or perhaps metric hollow bore with keyway, solo and dual plug-in shafts also available
Double lip productivity seals provide maximal protection against contaminants
Face or base installation options, bolt on flanges and torque arms also available
Bronze wheels cast about the productivity shaft for higher strength
Hardened and surface worm shaft provides smooth operation
Reducer completely sealed for universal mounting and long-life lubrication
Two bearing worm support isolates motor bearings from radial and axial loads
Flexible coupling aspect eliminates motor misalignment and bearing wear
Worm Gears are ideal angle drives providing significant speed ratios on comparatively short center distances from 1/4” to 11”. When effectively installed and lubricated they function as quietist and smoothest working type of gearing. As a result of high ratios conceivable with worm gearing, optimum speed reduction can be accomplished in much less 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 degree on the helix position of the worm. Multiple thread worms and gears with bigger helix angle prove 25% to 50% more efficient than single thread worms. The mesh or engagement of worms with worm gears makes a sliding action leading to considerable friction and better lack of efficiency beyond other types of gearing. The usage of hardened and surface worm swith bronze worm gears increases efficiency.
LUBRICATION is an essential factor to boost efficiency in worm gearing. Worm gear action generates considerable high temperature, decreasing efficiency. The amount of power transmitted at confirmed temperature raises as the productivity of the gearing raises. Proper lubrication enhances performance by lowering friction and heat.
RATIOS of worm gear sets are dependant on dividing the amount of teeth in the apparatus by the amount of threads. Thus solitary threads yield bigger ratios than multiple threads. All EP. worm gear sets are available with either still left or right hand threads. EP. worm gear sets can be found with Qua, Double, Triple and Single-druple Threads.
Protection PROVISION: Worm gearing shouldn’t be used as a good locking mechanism to hold large weights where reversing actions could cause harm or harm. In applications where potential injury is nonexistent and self-locking is desired against backward rotation after that use of a single thread worm with a low helix angle quickly locks the worm equipment drive against backward rotation.
Materials recommended for worms is going to be hardened steel and bronze for worm gears. However, depending on the application unhardened metal worms operate adequately and more economically with cast iron worm gears at 50% horsepower ratings. In addition to steel and hardenedsteel, worms are available in nylon, bronze, stainless and aluminum; worm gears can be found in steel, hardened metal, stainless, aluminum, nylon and non-metallic (phenolic).
EP also sells gear tooth measuring gadgets called Equipment GAGES! Gear Gages lessen mistakes, save time and money when identifying and purchasing gears. These pitch templates are available in nine sets to identify all the common pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, Exterior Involute Splines, Metric Module “MOD”, Stub Tooth, Good Pitches, Coarse Pitches and Unusual Pitches. Make reference to the section on Equipment GAGES for catalog quantities when ordering.

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