Our gear category supplies the quality parts to fit your vehicle and its own desired performance. Searching or shop for rings and pinions, side gears, planetary band and sun gears, and differential pinion gears, plus spur and, high performance gears. AxleTech offers person carrier parts, such as gear sets, to address specific servicing requirements. Our durable gears are authentic, OE-quality parts created to specs for demanding duty. Shop now to trust the part you use for your repair.
We stock the quality Ever-Power gears that meet up with the needs of a range of commercial, commercial and military applications, both off-highway and on-highway. Our Gears inventory features the band and pinion product line from Ever-Power. They are essential parts in your stock of carrier components. At Ever-Power, you can get bands and pinions with OE quality that are built for sturdiness and reliability. Each established is manufactured to support your vehicle’s optimized performance. The band and pinions are mated during manufacturing and temperature treated for the precise hardness your application demands. These important pieces of hardware keep your automobiles moving. Whenever a repair or replacement is necessary, you can look to Ever-power to supply the exact component required. The ring and pinions we share are built with the components and processes to meet OE specifications. As real replacement gears, they’re produced to the same standards as the manufacturer’s parts. Compromising a component could mean compromising overall performance. And there’s you don’t need to perform that when you’re able to look to our considerable gear inventory.
Gear Sets for Commercial Vehicles
Ever-Power new planetary reducers employ a floating sun equipment rather than a set position one.
The word ”There’s nothing new under the sun’ certainly applies to planetary reducers. And, while floating sun gears have been around quite a while, some engineers might not end up being aware of the huge benefits this unusual gear design can offer.
Traditionally, planetary reducers have used a set sun gear, where the centre gear is attached to or machined in to the shaft. When this fixed sun gear revolves, it turns the planet gears to create movement and/or power. Ever-Power new planetary reducers, however, are having a floating sun gear rather than a set position sun gear.
Why a floating sunlight gear? ‘In the planetary idea, the sun is the sun planet gear driver, or pinion, in the apparatus set,’Ever-Power design engineer Scott Hulstein stated. ‘Because the sun gear is in constant contact with the planets, it’s important that it’s perfectly centred among the three planets to be able to provide equal load sharing among itself and all three planets.’
Because of normal manufacturing tolerances nevertheless, a sun equipment which is securely set on a shaft will intermittently have more load using one planet equipment than on another equipment Hulstein explained. ‘By allowing the sun gear to float, it centres itself among the three planets and creates continuous, equal load sharing.’
Equal load sharing is merely one of the advantages of this design. The floating sun gear provides ‘accurate involute action,’ according to Hulstein. True involute action happens when the rolling motion between the mating gears is as complete as possible. The benefit of this finish meshing of gears is usually longer reducer life, since less internal equipment slippage means fewer broken gear teeth.
That also means lower noise levels. When sunlight gear is allowed to completely roll in to the world gears, there’s less ‘rattling’ as the teeth mesh. In place, the Ever-Power product offers ‘designed out’ the gear mesh sound by allowing sunlight gear to float into place.
So why use a fixed sun gear at all? ‘Fixed sun gears tend to be used in accurate servo applications,’ Greg Pennings, Ever-Power Customer Advocate, explained. ‘A set sun gear is necessary when precise positioning and low backlash are an integral part of the software.’ Ever-Power engineers, nevertheless, were less concerned with low backlash and more interested with higher torque and/or lower noise applications.
Our planetary reducers with floating sun gears were made to contend with parallel shaft reducers, where backlash was less critical,’ Pennings said.
By using the floating sun equipment concept, the Ever-Power planetary reducers can easily exceed the torque ratings of similar sized and bigger sized parallel shaft reducers, and yet maintain a lower noise levels.
Sun, Ring and Planet
The most basic kind of planetary gearset is proven in the figures above. The figure at still left shows a three-dimensional view as the figure at right offers a cross-section. In this geartrain, inputs and output can be extracted from the carrier, band and sun gears, and only the planet experiences epicyclic motion. That is the many common kind of planetary gearset (apart from the differential) and it discovers application in rate reducers and automatic transmissions. If you take apart a cordless drill, you will most probably find this type of planetary gearset directly behind the drill chuck.
Two Suns – Two Planets gearset
Two Suns, Two Planets
The gearset proven above has two sunlight gears, and both planet gears (the yellow gears) rotate as a single unit. Sunlight gears (green and brown) can rotate independently of 1 another. The inputs and result can be chosen from either sun equipment and/or the carrier. High speed reductions may be accomplished with this unit, nonetheless it can suffer from low efficiency if not really designed correctly.
Reddish colored sun input – purple sun fixed
Purple sun input – reddish colored sun fixed
The animations above show the ‘two suns – two planets’ gearset with one sun as input and the other sunlight fixed. Note that the carrier rotates clockwise in the animation at still left and counterclockwise in the animation at right – even though the sun rotates counterclockwise in both instances.
The gearset proven above differs from the preceding gearsets for the reason that it is made up of miter gears instead of spur (or helical) gears. The ‘sun’ gears are the ones that do not undergo the epicyclic movement experienced by the planet. And the differential can be used to measure the difference in rate between two shafts for the purpose of synchronization. Furthermore, the differential is often used in automotive drive trains to conquer the difference in wheel acceleration when a car encircles a corner.