Ever-Power has been designing and manufacturing reliable, powerful gearboxes for over twenty years. RW Series miniature correct angle gearboxes provide high torque ideals 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 e mail us for more information.
Worm Wheel Miniature Gearboxes
Our RW series miniature worm gear box assembly may be small, but it’s difficult enough to handle demanding power transfer applications. Constructed with machined light weight aluminum housings and hardened steel input and output gears, they’ll deliver many years of reliable performance.
Obtainable in three standard result ratios and with two output shaft diameter options, it’s easy to find the Ever-Power correct miniature gearbox for your needs. Each RW model worm equipment box assembly provides proportionally high torque values (1.4 NM at 3,000 RPM) with suprisingly 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
Permanently lubricated
Made in the China
Mechanical drives take supplied torque and may increase or reduce that torque predicated on application. Also acceleration is increased or reduced compared index G – Equipment BOXES – on blue – smallto the speed decrease ratio. Ever-Power has a full line of gearboxes and acceleration reducers, and the components needed to build them, in an array of regular ratios and shaft choices in addition to custom designs.
Helical, bevel, and miter equipment boxes offer the options of rate reducers or velocity increasers, and could be powered in either path. All Ever-Power worm gear speed reducers and correct angle drives are produced for powerful in a large spectrum of applications. Typically worm equipment boxes aren’t used as acceleration increasers. The cases are molded glass-filled materials making them extremely rugged and resistant to corrosive environments. They can be found in an array of ratios and are built with right hand 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 made up of a screw (the worm) that drives a wheel (helical gear) or solitary enveloping wheel and so are used in mechanical applications ranging from conveyors to exercise devices to robots.
Geneva mechanisms and assemblies are typically used to transform continuous rotary movement into intermittent rotary movement. The rotating drive wheel has a pin that reaches 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 among the key words of the standard gearboxes of the BJ-Series. Further optimisation can be achieved by using adapted gearboxes or particular gearboxes.
Low noise
Our worm gearboxes and actuators are extremely quiet. This is due to the very smooth running of the worm gear combined with the use of cast iron and high precision on element manufacturing and assembly. Regarding the our precision gearboxes, we take extra treatment of any sound which can be interpreted as a murmur from the apparatus. So the general noise level of our gearbox is certainly reduced to an absolute minimum.
Angle gearboxes
On the worm gearbox the input shaft and output shaft are perpendicular to one another. This frequently proves to be a decisive advantage producing the incorporation of the gearbox significantly simpler and more compact.The worm gearbox can be 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 quite firmly embedded in the gear house and is perfect for immediate suspension for wheels, movable arms and other parts 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 range of solutions.
Structural Features
The worm-gear reducer comprises of three main parts: housing, worm-gear and wheel.
The carcasses are made of GG-25 cast-iron, and so are available for all kinds of gear-reducer. This make them perform efficiently under stressed conditions, vibrations or any kind of setback that can’t be avoided through the assembly
The worm-gear is made 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. Due to the mechanical work of the two parts having top quality, excellent functionality and low noise levels have been achived.
The output shaft is hollow, although 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), provide the most competitive gear reducer on the market.
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 is born like response to the demand of our costumers since, upon mounting greater bearings in the output, bears better axial loads that its analogous one in the MF-62 series. The others of technical characteristic are identical to the its analogous in the size 62.
Assembly Position
In order to set up a gear reducer and also to make it work efficiently, the next instructions must be considered:
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 recommended to insert compensating couplings, connectors, torque limiters etc…
If the gear reducer had to be painted, the oil seals must be covered to prevent them from drying and losing their seal.
The machine 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 aspect when the gear reducer result shaft is driven instead of being a driver. Considering that one of the features of this worm-gear reducer is the fact that can’t be axle-driven by the output shaft (irreversibility), it really is almost not possible to meet up total irreversibility conditions, because of external elements such as for example vibrations, etc. This is why, when the application needs total irreversibility, it really is advisable to utilize external brakes with enough capacity to avoid slipping.
It may be said that the circumstances under which irreversibility can happen are the following:
• Efficiency < 0,55 (find table of technical features).
Maintenance
This sort of gear reducer is provided with a permanent lubrication, so it will not need any kind of maintenance.
Lubrication
The lubrication of this gear reducer type is constant 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.