ep

June 10, 2020

Ever-Power has been creating and manufacturing reliable, powerful gearboxes for over 20 years. RW Series miniature correct angle gearboxes offer high torque values with suprisingly low backlash in extremely compact frames. Three equipment ratios are available to meet up the needs of your unique application.
Order the Ever-Power RW Series worm gear box assembly you will need, ask for a quote, or contact us for more information.
Worm Wheel Miniature Gearboxes
Our RW series miniature worm equipment box assembly may be little, but it’s hard enough to take care of demanding power transfer applications. Designed with machined light weight aluminum housings and hardened steel input and result gears, they’ll deliver a long time of reliable performance.
Obtainable in three standard output ratios and with two result shaft diameter options, it’s easy to find the Ever-Power correct miniature gearbox for your needs. Each RW model worm equipment container assembly provides proportionally high torque ideals (1.4 NM at 3,000 RPM) with suprisingly low backlash (maximum 2° backlash).
For full specifications and Dimensional Parametric Search, see individual product listings.
The Ever-Power Advantage
High efficiency miniature right angle gearbox (up to 90% at 1,000 RPM)
Three gear ratios available: 5:1, 10:1, and 20:1
Extremely compact footprint: 1.5” x 1.5” x 1.08”
12.5 inch-lbs. output torque
Very low backlash (2° backlash maximum)
90° output angle
Maximum input speed: 3,000 RPM
Machined aluminum housing with hardened metal gears and oil-impregnated bronze bearings
Permanently lubricated
Made in the China
Mechanical drives take supplied torque and could increase or reduce that torque based on application. Also rate is increased or decreased in proportion index G – Equipment BOXES – on blue – smallto the speed reduction ratio. Ever-Power includes a full type of gearboxes and velocity reducers, and the components had a need to build them, in an array of standard ratios and shaft choices in addition to custom designs.
Helical, bevel, and miter gear boxes offer the options of velocity reducers or quickness increasers, and may be powered in either path. All Ever-Power worm gear speed reducers and right angle drives are manufactured for high performance in a large spectrum of applications. Typically worm equipment boxes are not used as rate increasers. The cases are molded glass-filled materials making them extremely durable and resistant to corrosive environments. They are offered in an array of ratios and are built with right hands or left hands worm gears. The output shafts could be solid or hollow, and load capability is unaffected by path and rotation.
Worm gear quickness reducers are comprised of a screw (the worm) that drives a wheel (helical gear) or single enveloping wheel and so are found in mechanical applications ranging from conveyors to physical exercise devices to robots.
Geneva mechanisms and assemblies are usually used to transform continuous rotary motion into intermittent rotary movement. The rotating drive wheel includes a pin that gets to right into a slot of the powered wheel advancing it by one stage and a blocking disc that locks the driven wheel in position between steps.
Compact design
Compact design is one of the key words of the standard gearboxes of the BJ-Series. Further optimisation can be achieved through the use of adapted gearboxes or particular gearboxes.
Low noise
Our worm gearboxes and actuators are really quiet. This is because of the very smooth running of the worm gear combined with the usage of cast iron and high precision on element manufacturing and assembly. Regarding the our precision gearboxes, we consider extra care of any sound which can be interpreted as a murmur from the apparatus. Therefore the general noise degree of our gearbox is definitely reduced to a complete minimum.
Angle gearboxes
On the worm gearbox the input shaft and output shaft are perpendicular to each other. This often proves to become a decisive advantage producing the incorporation of the gearbox considerably simpler and smaller sized.The worm gearbox is an angle gear. This is an advantage for incorporation into constructions.
Solid bearings in solid housing
The output shaft of the BJ worm gearbox is very firmly embedded in the apparatus house and is well suited for immediate suspension for wheels, movable arms and other areas rather than needing to build a separate suspension.
Self locking
For larger equipment ratios,EP-Gear’s worm gearboxes provides a self-locking effect, which in many situations can be used as brake or as extra protection. Also spindle gearboxes with a trapezoidal spindle are self-locking, making them well suited for an array of solutions.
Structural Features
The worm-gear reducer is made up of three main parts: housing, worm-gear and wheel.
The carcasses are made of GG-25 cast-iron, and so are available for all sorts of gear-reducer. This make them perform efficiently under stressed circumstances, vibrations or any type of setback that cannot be avoided during the assembly
The worm-gear is made of hardened and quench-hardened steel, with ground- on teeth sides, and the crowns manufactured from DIN (GZ-CuSn 12 Ni2) centricast bronze, melted on steel. Because of the mechanical work of the two parts having top quality, excellent functionality and low sound amounts have been achived.
The output shaft is hollow, though it is possible to adapt a good shaft.
The oil seals manufactured from NITRILE BUTADIENE, according to DIN 3760, top quality bearings, an EPOXY- impregnated finish ( 2 components), and grey-coloured SINGLE LAYER ENAMEL finish ( 2 components) ( RAL 7672), supply the best gear reducer out there.
Size 63
In the size 62 of the MF series, worm-gear reducers, the output hollow shaft of diameter 30 has been included, that substitutes to the output hollow shaft with diameter 25, from size 62. This variant has like reference size 63 and exists like answer to the request of our costumers since, upon mounting better bearings in the result, bears greater axial loads that its analogous one in the MF-62 series. The others of technical feature are similar to the its analogous in the size 62.
Assembly Position
In order to set up a gear reducer and also to make it happen efficiently, the next instructions must be considered:
It must be fixed on a flat surface in order to avoid either vibrations or tensions.
If undistributed loads or continued start-ups are foreseen, it is recommended to insert compensating couplings, connectors, torque limiters etc…
If the gear reducer had to be painted, the oil seals should be covered to prevent them from drying and losing their seal.
The device work of the fittings create in the output shafts require an ISO H7 or h6 margin for the hollow shaft.
Backdriving
It is wise to focus on this element when the gear reducer output shaft is driven instead of being a driver. Bearing in mind that among the top features of this worm-equipment reducer is the fact that cannot be axle-powered by the result shaft (irreversibility), it really is almost impossible to meet total irreversibility conditions, due to external factors such as for example vibrations, etc. That is why, when the application form requires total irreversibility, it is advisable to make use of external brakes with enough power to avoid slipping.
It may be said that the circumstances under which irreversibility can occur are as follows:
• Efficiency < 0,55 (find table of specialized features).
Maintenance
This sort of gear reducer is provided with a permanent lubrication, so it really does not need any kind of maintenance.
Lubrication
The lubrication of the gear reducer type is continuous and comes as standard, with high quality refined oil which has antirust and antiwear products with Fe, Cu and alloy protectors which has level of quality CLP DIN 51517-3, FGZ level 12, AP GL-4, US 224, AGMA 250-04; for that reason its maintenance is not needed.

High reduction gear
Worm and wheel gear pairings provide large rate reduction ratios with only one equipment pairing in a far more compact space when compared with other styles of gears. You can expect up to a maximum ratio of 100:1 with this products. Another advantage of the Worm and Wheel equipment pairings may be the low level noise they produce. Some disadvantages are the general low performance and the fact that they generate warmth.

Benefit of EP’s Worm Gears – “Cold rolled Worm Gears”
1) The hardness of the helicoid surface area has been attained by function hardening when the frosty rolling was performed, providing Worm gears with better mechanical properties than machined worms because of fact that the metallic fibrous framework is not cut.

2) The top hardness after cold rolling is increased by 1.2 to at least one 1.3 times when compared with the hardness of the initial material, and the hardness of the helicoid surface area increases to around HB240 to 260.

3) Frosty rolled worms are ideal for miniature equipment applications since this can be rotated smoothly without damaging the worm wheels made out of POM or additional soft materials.

4) Due to the implementation of this cold rolling method, the helicoid surface of EP-Worm (M0.5 to 2.0) comes out with a mirror like complete. Thus, EP-Precision Cold Rolled Worms give a smooth operation and long term durability.

Worm gears are constructed of a worm and a gear (sometimes known as a worm wheel), with non-parallel, nonintersecting shafts oriented 90 degrees to one another. The worm is usually analogous to a screw with a V-type thread, and the gear can be analogous to a spur gear. The worm is typically the traveling component, with the worm’s thread advancing one’s teeth of the gear.

Like a ball screw, the worm in a worm gear may have a single start or multiple starts – and therefore there are multiple threads, or helicies, on the worm. For a single-start worm, each full convert (360 degrees) of the worm increases the gear by one tooth. So a gear with 24 teeth will provide a gear reduction of 24:1. For a multi-start worm, the apparatus reduction equals the number of teeth on the gear, divided by the number of begins on the worm. (That is different from most other types of gears, where in fact the gear reduction can be a function of the diameters of both components.)
The meshing of the worm and the apparatus is a mixture of sliding and rolling actions, but sliding contact dominates at high reduction ratios. This sliding actions causes friction and high temperature, which limits the performance of worm gears to 30 to 50 percent. To be able to minimize friction (and therefore, heat), the worm and equipment are constructed with dissimilar metals – for example, the worm could be produced of hardened steel and the apparatus manufactured from bronze or aluminum.

Although the sliding contact decreases efficiency, it provides extremely quiet operation. (The usage of dissimilar metals for the worm and equipment also contributes to quiet operation.) This makes worm gears suitable for use where noise should be minimized, such as in elevators. In addition, the utilization of a softer materials for the gear implies that it could absorb shock loads, like those experienced in weighty equipment or crushing machines.

The primary advantage of worm gears is their capability to provide high reduction ratios and correspondingly high torque multiplication. They may also be used as acceleration reducers in low- to moderate-quickness applications. And, because their decrease ratio is founded on the amount of gear teeth alone, they are more compact than other styles of gears. Like fine-pitch business lead screws, worm gears are typically self-locking, making them ideal for hoisting and lifting applications.

Worms & Worm Gears
EP Gear’s worms and worm gears provide a highly effective answer for power transmission applications requiring high-ratio acceleration reduction in a limited space using correct angle (90°), nonintersecting shafts. When properly used, worms and worm gears supply the smoothest, quietest type of gearing.

Because the efficiency of a worm equipment drive depends upon the lead angle and number of starts on the worm – and because increased effectiveness is always an objective, the ratio ought to be kept as low as possible. To run properly, worms and worm gears utilized together will need to have the same diametral pitch and threads.

Our complete line of worms and worm gears can be ordered through the EP Equipment Guaranteed Same Time Shipment Program for the fastest delivery possible.
Product Features
90°, non-intersecting shaft applications solution highly specialized power transmitting needs.
Our worm gears provide smoothest, quietest kind of gearing.
They offer high-ratio speed decrease in minimal spaces.
Their efficiency is easily increased by reducing ratios.
With some ratios, there is level of resistance to back driving.
Available from 48 DP to 3 DP
Stocked as single, dual and quad start configurations