Ever-Power has been creating and manufacturing reliable, high performance gearboxes for over 20 years. RW Series miniature correct angle gearboxes provide high torque values with suprisingly low backlash in incredibly compact frames. Three equipment ratios are available to meet the needs of your specific application.
Order the Ever-Power RW Series worm equipment box assembly you will need, request a quote, or e mail us for more information.
Worm Wheel Miniature Gearboxes
Our RW series miniature worm gear box assembly could be small, but it’s difficult enough to take care of demanding power transfer applications. Designed with machined light weight 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 output shaft diameter options, it’s simple to find the Ever-Power right miniature gearbox to your requirements. Each RW model worm gear container assembly provides proportionally high torque values (1.4 NM at 3,000 RPM) with very low backlash (maximum 2° backlash).
For full specifications and Dimensional Parametric Search, see individual item listings.
The Ever-Power Advantage
High efficiency miniature right angle gearbox (up to 90% at 1,000 RPM)
Three equipment 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 may increase or reduce that torque based on application. Also acceleration is increased or decreased in proportion index G – GEAR BOXES – on blue – smallto the speed decrease ratio. Ever-Power has a full type of gearboxes and speed reducers, and the components had a need to build them, in an array of regular ratios and shaft options along with custom designs.
Helical, bevel, and miter gear boxes offer the options of velocity reducers or acceleration increasers, and may be powered in either direction. All Ever-Power worm equipment speed reducers and correct angle drives are produced for high performance in a large spectrum of applications. Typically worm gear boxes aren’t used as quickness increasers. The cases are molded glass-filled material making them extremely rugged and resistant to corrosive conditions. They can be found in a wide variety of ratios and are built with right hand or left hands worm gears. The result shafts may be solid or hollow, and load capability is unaffected by path and rotation.
Worm gear acceleration reducers are made up of a screw (the worm) that drives a wheel (helical gear) or solitary enveloping wheel and are used in mechanical applications which range from conveyors to exercise devices to robots.
Geneva mechanisms and assemblies are typically used to transform continuous rotary motion into intermittent rotary movement. The rotating drive wheel includes a pin that reaches right into a slot of the driven wheel advancing it by one step and a blocking disc that locks the powered wheel in position between steps.
Compact design
Compact design is one of the key phrases of the standard gearboxes of the BJ-Series. Further optimisation may be accomplished through the use of adapted gearboxes or particular gearboxes.
Low noise
Our worm gearboxes and actuators are extremely quiet. This is because of the very smooth operating of the worm gear combined with the use of cast iron and high precision on component manufacturing and assembly. In connection with our precision gearboxes, we consider extra care of any sound which can be interpreted as a murmur from the gear. So the general noise degree of our gearbox is usually reduced to a complete minimum.
Angle gearboxes
On the worm gearbox the input shaft and output shaft are perpendicular to each other. This frequently proves to become a decisive advantage making the incorporation of the gearbox substantially 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 well suited for direct suspension for wheels, movable arms and other areas rather than having to build a separate suspension.
Self locking
For larger gear ratios,EP-Gear’s worm gearboxes provides a self-locking effect, which in many situations can be used as brake or as extra security. 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 comprises of three main parts: housing, worm-gear and wheel.
The carcasses are constructed with GG-25 cast-iron, and so are available for all sorts of gear-reducer. This make sure they are perform effectively under stressed conditions, vibrations or any type of setback that can’t be avoided through the assembly
The worm-gear is constructed 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 these two parts having top quality, excellent overall performance and low noise 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 best 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 offers like reference size 63 and is born like response to the request of our costumers since, upon mounting higher bearings in the result, bears greater axial loads that its analogous one in the MF-62 series. The others of technical characteristic 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 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 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 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 focus on this factor when the gear reducer result shaft is driven instead of being a driver. Bearing in mind that among the features of this worm-gear reducer may be the fact that can’t be axle-powered by the output shaft (irreversibility), it really is almost unattainable to meet total irreversibility conditions, due to external elements such as for example vibrations, etc. This is why, when the application form needs total irreversibility, it really is advisable to make use of exterior brakes with enough power to avoid slipping.
It could be said that the conditions under which irreversibility can occur are as follows:
• Efficiency < 0,55 (see table of specialized features).
Maintenance
This kind of gear reducer is provided with a permanent lubrication, so it does not need any type of maintenance.
Lubrication
The lubrication of the gear reducer type is constant and comes as standard, with high quality refined oil which includes 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.