Ever-Power has been designing and manufacturing reliable, powerful gearboxes for over 20 years. RW Series miniature right angle gearboxes provide high torque values with suprisingly low backlash in incredibly compact frames. Three equipment ratios are available to meet up the requirements of your unique application.
Order the Ever-Power RW Series worm equipment box assembly you will need, request a quote, or contact us for more information.
Worm Wheel Miniature Gearboxes
Our RW series miniature worm gear box assembly could be little, but it’s challenging enough to take care of demanding power transfer applications. Constructed with machined aluminium housings and hardened steel input and output 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 simple to find the Ever-Power right miniature gearbox to your requirements. Each RW model worm equipment container assembly provides proportionally high torque values (1.4 NM at 3,000 RPM) with very low backlash (optimum 2° backlash).
For full specifications and Dimensional Parametric Search, see individual product listings.
The Ever-Power Advantage
High efficiency miniature correct 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 casing with hardened steel gears and oil-impregnated bronze bearings
Permanently lubricated
Manufactured in the China
Mechanical drives take supplied torque and could increase or reduce that torque predicated on application. Also speed is increased or reduced in proportion index G – Equipment BOXES – on blue – smallto the speed reduction ratio. Ever-Power has a full line of gearboxes and rate reducers, and the elements needed to build them, in a wide range of standard ratios and shaft options in addition to custom designs.
Helical, bevel, and miter equipment boxes offer the options of velocity reducers or quickness increasers, and may be driven in either path. All Ever-Power worm gear speed reducers and correct angle drives are produced for powerful in a large spectral range of applications. Typically worm equipment boxes aren’t used as swiftness increasers. The situations are molded glass-filled material making them extremely tough and resistant to corrosive conditions. They are offered in a wide selection of ratios and are built with right hands or left hand worm gears. The result shafts may be solid or hollow, and load capacity is unaffected by 
direction and rotation.
Worm gear swiftness 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 ranging from conveyors to physical exercise devices to robots.
Geneva mechanisms and assemblies are usually used to transform continuous rotary movement into intermittent rotary movement. The rotating drive wheel has a pin that reaches right into a slot of the driven wheel advancing it by one stage and a blocking disc that locks the driven wheel constantly in place between steps.
Compact design
Compact design is among the key words of the typical gearboxes of the BJ-Series. Further optimisation may be accomplished through the use of adapted gearboxes or special gearboxes.
Low noise
Our worm gearboxes and actuators are extremely quiet. This is because of the very smooth running of the worm gear combined with the use of cast iron and high precision on component manufacturing and assembly. Regarding the our precision gearboxes, we take extra care of any sound that can be interpreted as a murmur from the gear. Therefore the general noise level of our gearbox can be reduced to an absolute minimum.
Angle gearboxes
On the worm gearbox the input shaft and output shaft are perpendicular to one another. This often proves to be a decisive advantage producing the incorporation of the gearbox significantly simpler and smaller sized.The worm gearbox is an angle gear. This is often 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 gear house and is well suited for direct suspension for wheels, movable arms and other areas rather than having to create a separate suspension.
Self locking
For larger gear ratios,EP-Gear’s worm gearboxes will provide a self-locking effect, which in many situations can be utilized as brake or as extra security. Also spindle gearboxes with a trapezoidal spindle are self-locking, making them well suited for a wide variety 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 kind of setback that cannot 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 the two parts having high quality, excellent functionality and low noise amounts have been achived.
The output shaft is hollow, although it can be done to adapt a solid shaft.
The oil seals made of 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 available.
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 response to the demand of our costumers since, upon mounting greater bearings in the output, bears higher 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 to make it happen efficiently, the next instructions must be taken into account:
It should 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 suggested to insert compensating couplings, connectors, torque limiters etc…
If the gear reducer needed to be painted, the essential oil seals should be covered to avoid them from drying and losing their seal.
The machine work of the fittings set up in the output shafts need an ISO H7 or h6 margin for the hollow shaft.
Backdriving
It is smart to pay attention to this factor when the gear reducer result shaft is driven rather than being a driver. Bearing in mind that among the features of this worm-gear reducer may be the fact that cannot be axle-driven by the result shaft (irreversibility), it is almost not possible to meet up total irreversibility conditions, because of external factors such as for example vibrations, etc. For this reason, when the application needs total irreversibility, it is advisable to make use of exterior brakes with enough power to avoid slipping.
It may be said that the conditions under which irreversibility can happen are the following:
• Efficiency < 0,55 (observe table of specialized features).
Maintenance
This type of gear reducer will get a permanent lubrication, so that it does not need any type of maintenance.
Lubrication
The lubrication of this gear reducer type is continuous and comes as standard, with top quality refined oil which has antirust and antiwear products with Fe, Cu and alloy protectors that has quality level CLP DIN 51517-3, FGZ level 12, AP GL-4, US 224, AGMA 250-04; for that reason its maintenance isn’t needed.