EP offers a complete selection of modular servo gearboxes /worm reducers. The modular design allows for configurations with motor source flange and output pinion for rack and pinion drives, in addition to solid outcome shafts, Hollow bore output, and insight shafts for all the positioning applications. The modular design allows for common mounting of the gearbox in any orientation.
Servo-Worm Reducers were particularly developed for work with with the latest servo motors found in applications that demand precise positioning and repeatability.
These reducers are well suited 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 suggestions flanges and couplings are available to permit easy mounting of practically any servo-motor and custom flanges can be accommodated. Result configurations 
with pinion, hollow bore, or sound shaft are available and can be configured for source with motor flange, free of charge suggestions shaft, or both free input shaft and motor flange.
An optimized worm equipment tooth design insures great efficiency while at exactly the same time decreasing backlash. Two levels of backlash are available, Precise or Extra-precise, with backlash levels to less than 3 arc minutes.
Obtainable in 6 sizes
Ratios from 2 to 60:1
Torque Capacity up to 4400 Lb.-Ft. (6000 Nm)
Input Speeds up 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
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 lowest angular backlash, for 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 possible servomotors coupling dimensions.
The correct technical solution thanks to a comprehensive range 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 perfect for use in applications that demand high performance, precise positioning and repeatability. They were especially developed for work with with state-of-the-art servo engine technology, providing limited integration of the electric motor to the unit. Angular backlash of significantly less than 1 arc-moments is provided standard.
They can be purchased 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 motor couplings and mounting flanges are available for assembly to practically all servo motors, and the hollow bore result works extremely well to mount end result shafts, pinion shafts, or other drive elements.
Normal applications for these reducers include precision rotary axis drives, traveling gantries & columns, materials handling axis drives, zero-backlash axis drives and electric line shafting. Industries dished up include Material H, ling, Robotics, Machine Application, Aerospace and Automation.
Gearing: Internal gear style was optimized to provide an angular backlash of less than 1 arc-minutes at assembly, with the option of “in the field” adjustable backlash if necessary.
Bearings: Input angular call bearings for high insight 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 insight flange for servo motors and common mounting on any deal with.
Output: The end result bore is available with a compression-type hub or a ISO 9409-1 flange (see dimension internet pages). We provide a line of extras to adapt these outputs to right 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 also eliminates back-generating the gearmotor so a position can be kept even when power is not 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 aluminum structure offers a rigid framework without adding unnecessary weight and is very easily installed to any flat work surface by utilizing the base mounting tabs. Our Standard Spur Gear motors will work with this gearbox (motor purchased separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse devices and low-quickness applications that require high precision and torque.
Motor RPM required = 1 / (a few minutes per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor had a need to achieve ten minutes per rotation (in 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 most appropriate for basic movement and type speeds of 2000 rpm where profile program 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, place shafts optional
2D and 3D drawings available online
Flexible servo motor interface
Clamp-design hub provides zero-backlash engine 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-in shafts also available
Double lip end result seals provide maximal protection against contaminants
Face or base installation options, bolt on flanges and torque hands also available
Bronze wheels cast on the result shaft for higher strength
Hardened and surface 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 aspect eliminates motor misalignment and bearing wear
Worm Gears are best angle drives providing significant acceleration ratios on comparatively brief center distances from 1/4” to 11”. When effectively installed and lubricated they function as quietist and smoothest operating type of gearing. Because of the high ratios possible with worm gearing, maximum 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 bigger helix angle prove 25% to 50% more efficient than solitary thread worms. The mesh or engagement of worms with worm gears generates a sliding action leading to considerable friction and increased loss of efficiency beyond other types of gearing. The use of hardened and ground worm swith bronze worm gears boosts efficiency.
LUBRICATION can be an essential factor to boost efficiency in worm gearing. Worm equipment action generates considerable high temperature, decreasing efficiency. The volume of power transmitted at a given temperature rises as the performance of the gearing boosts. Proper lubrication enhances performance by reducing friction and heat.
RATIOS of worm equipment sets are dependant on dividing the amount of teeth in the apparatus by the amount of threads. Thus solitary threads yield higher ratios than multiple threads. All EP. worm equipment sets are available with either still left or right palm threads. EP. worm gear sets are offered with Qua, Triple, Solitary and Double-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 harm. In applications where potential damage is nonexistent and self-locking is desired against backward rotation then use of an individual thread worm with a minimal helix angle immediately locks the worm gear drive against backward rotation.
MATERIAL recommended for worms is hardened steel and bronze for worm gears. However, depending on the application form unhardened steel worms operate adequately and more economically with cast iron worm gears at 50% horsepower ratings. In addition to metal and hardenedsteel, worms can be purchased in stainless, nylon, metal and bronze; worm gears can be purchased in steel, hardened steel, stainless, lightweight aluminum, nylon and nonmetallic (phenolic).
EP also sells gear tooth measuring equipment called GEAR 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 standard 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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