Ever-Power has been designing and manufacturing reliable, high performance gearboxes for over 20 years. RW Series miniature right angle gearboxes provide high torque ideals with suprisingly low backlash in incredibly compact frames. Three gear ratios are available to meet up the requirements of your specific application.
Order the Ever-Power RW Series worm gear box assembly you need, demand a quote, or contact us for more information.
Worm Wheel Miniature Gearboxes
Our RW series miniature worm gear box assembly could be small, but it’s tough enough to take care of demanding power transfer applications. Constructed with machined aluminum housings and hardened steel input and output gears, they’ll deliver many years of reliable performance.
Available in three standard output ratios and with two result shaft diameter options, it’s simple to find the Ever-Power right miniature gearbox to your requirements. Each RW model worm equipment box assembly provides proportionally high torque ideals (1.4 NM at 3,000 RPM) with very low backlash (optimum 2° backlash).
For full specs 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
Suprisingly 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
Made in the China
Mechanical drives take supplied torque and could increase or reduce that torque predicated on application. Also acceleration is increased or reduced compared index G – GEAR BOXES – on blue – smallto the speed decrease ratio. Ever-Power includes a full type of gearboxes and speed reducers, and the elements had a need to build them, in an array of standard ratios and shaft choices in addition to custom designs.
Helical, bevel, and miter equipment boxes provide options of velocity reducers or rate increasers, and may be driven in either direction. All Ever-Power worm gear speed reducers and right angle drives are manufactured for powerful in a large spectrum of applications. Typically worm gear boxes are not used as rate increasers. The instances are molded glass-filled material making them extremely tough and resistant to corrosive environments. They can be found in a wide variety of ratios and are equipped with right hand or left hands worm gears. The output shafts may be solid or hollow, and load capability is unaffected by path and rotation.
Worm gear velocity reducers are comprised of a screw (the worm) that drives a wheel (helical gear) or single enveloping wheel and so are used in mechanical applications which range from conveyors to physical exercise devices to robots.
Geneva mechanisms and assemblies are typically used to transform continuous rotary motion into intermittent rotary motion. The rotating drive wheel has a pin that reaches right into a slot of the driven wheel advancing it by one step and a blocking disc that locks the driven wheel constantly in place between steps.
Compact design is among the key words of the standard gearboxes of the BJ-Series. Further optimisation may be accomplished through the use of adapted gearboxes or particular gearboxes.
Our worm gearboxes and actuators are really quiet. This is due to the very smooth operating of the worm equipment combined with the use of cast iron and high precision on element manufacturing and assembly. In connection with our precision gearboxes, we take extra treatment of any sound which can be interpreted as a murmur from the gear. Therefore the general noise degree of our gearbox is reduced to a complete minimum.
On the worm gearbox the input shaft and output shaft are perpendicular to one another. This frequently proves to become a decisive advantage producing the incorporation of the gearbox significantly simpler and more compact.The worm gearbox is an angle gear. This is an advantage for incorporation into constructions.
Strong 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 having to build a separate suspension.
For larger gear ratios,EP-Gear’s worm gearboxes provides a self-locking impact, which in many circumstances can be used as brake or as extra protection. Also spindle gearboxes with a trapezoidal spindle are self-locking, making them perfect for a wide selection of solutions.
The worm-gear reducer comprises of three main parts: housing, worm-gear and wheel.
The carcasses are made from GG-25 cast-iron, and so are available for all sorts of gear-reducer. This make them perform effectively under stressed circumstances, vibrations or any kind of setback that can’t be avoided during the assembly
The worm-gear is constructed of hardened and quench-hardened steel, with ground- on teeth sides, and the crowns made of DIN (GZ-CuSn 12 Ni2) centricast bronze, melted on steel. Because of the mechanical work of these two parts having top quality, excellent efficiency 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, high quality bearings, an EPOXY- impregnated finish ( 2 components), and grey-coloured SINGLE LAYER ENAMEL finish ( 2 components) ( RAL 7672), provide the most competitive gear reducer out there.
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 provides like reference size 63 and is born 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 rest of technical feature are similar to the its analogous in the size 62.
In order to set up a gear reducer and to make it work efficiently, the next instructions must be considered:
It should be fixed on a set surface in order to avoid either vibrations or tensions.
If undistributed loads or continued start-ups are foreseen, it is suggested to insert compensating couplings, connectors, torque limiters etc…
If the apparatus reducer needed to be painted, the oil seals should be covered to avoid 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.
It is smart to pay attention to this aspect when the gear reducer output shaft is driven rather than being a driver. Considering that one of the top features of this worm-equipment reducer may be the fact that cannot be axle-powered by the result shaft (irreversibility), it really is almost not possible to meet total irreversibility conditions, due to external elements such as vibrations, etc. For this reason, when the application requires total irreversibility, it really is advisable to make use of exterior brakes with enough capacity to avoid slipping.
It may be said that the conditions under which irreversibility can occur are as follows:
• Efficiency < 0,55 (see table of technical features).
This type of gear reducer is provided with a permanent lubrication, so that it really does not need any type of maintenance.
The lubrication of this gear reducer type is constant and comes as standard, with top quality refined oil which includes 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 acceleration decrease ratios with only 1 gear pairing in a more compact space when compared with other types of gears. We offer up to maximum ratio of 100:1 with this products. Another benefit of the Worm and Wheel gear pairings may be the low level sound they produce. Some drawbacks are the general low efficiency and the actual fact that they generate warmth.
Advantage of EP’s Worm Gears – “Cool rolled Worm Gears”
1) The hardness of the helicoid surface has been achieved by function hardening when the chilly rolling was performed, providing Worm gears with better mechanical properties than machined worms due to fact that the metallic fibrous structure has not been cut.
2) The surface hardness after cold rolling is increased by 1.2 to at least one 1.3 times in comparison to the hardness of the original materials, and the hardness of the helicoid surface area increases to around HB240 to 260.
3) Cold rolled worms are ideal for miniature gear applications since this could be rotated smoothly without damaging the worm wheels crafted from POM or additional soft materials.
4) Due to the implementation of this cold rolling technique, 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 procedure and long-term durability.
Worm gears are made of a worm and a equipment (sometimes referred to as a worm wheel), with nonparallel, nonintersecting shafts oriented 90 degrees to one another. The worm is analogous to a screw with a V-type thread, and the apparatus is definitely analogous to a spur equipment. The worm is typically the traveling component, with the worm’s thread advancing one’s teeth of the gear.
Such as a ball screw, the worm in a worm gear might have a single start or multiple starts – meaning that there are multiple threads, or helicies, on the worm. For a single-start worm, each full change (360 degrees) of the worm advances the gear by one tooth. So a gear with 24 teeth will provide a gear reduced amount of 24:1. For a multi-begin worm, the gear reduction equals the number of teeth on the gear, divided by the number of starts on the worm. (That is different from almost every other types of gears, where in fact the gear reduction is usually a function of the diameters of the two 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 action causes friction and temperature, which limits the performance of worm gears to 30 to 50 percent. In order to minimize friction (and therefore, heat), the worm and equipment are made from dissimilar metals – for instance, the worm could be made of hardened steel and the gear made of bronze or aluminum.
Although the sliding contact reduces efficiency, it provides extremely quiet operation. (The use of dissimilar metals for the worm and gear also contributes to quiet procedure.) This makes worm gears ideal for use where noise should be minimized, such as in elevators. Furthermore, the use of a softer materials for the gear implies that it can absorb shock loads, like those skilled in large equipment or crushing devices.
The primary advantage of worm gears is their ability to provide high reduction ratios and correspondingly high torque multiplication. They can also be utilized as quickness reducers in low- to medium-quickness applications. And, because their decrease ratio is based on the amount of gear teeth only, they are smaller sized than other styles of gears. Like fine-pitch business lead screws, worm gears are usually self-locking, which makes them perfect 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 rate reduction in a limited space using correct angle (90°), nonintersecting shafts. When properly used, worms and worm gears supply the smoothest, quietest form of gearing.
Because the effectiveness of a worm gear drive depends upon the business lead angle and quantity of starts on the worm – and because increased effectiveness is always an objective, the ratio ought to be kept only possible. To run correctly, worms and worm gears utilized together must have the same diametral pitch and threads.
Our complete line of worms and worm gears could be ordered through the EP Equipment Guaranteed Same Day Shipment Plan for the fastest delivery possible.
90°, nonintersecting shaft applications answer highly specialized power tranny needs.
Our worm gears offer the smoothest, quietest type 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