sun planet gear

Our gear category supplies the quality parts to fit your vehicle and its sun planet gear desired performance. Searching or shop for bands and pinions, aspect gears, planetary band and sunlight gears, and differential pinion gears, plus spur and, powerful gears. AxleTech offers individual carrier parts, such as gear sets, to address specific servicing requirements. Our durable gears are genuine, OE-quality parts created to specs for demanding duty. Shop now to have confidence in the part you utilize for your repair.

We stock the product quality Ever-Power gears that meet the needs of a range of commercial, industrial and military applications, both off-highway and on-highway. Our Gears inventory features the band and pinion product line from Ever-Power. They are vital parts in your stock of carrier parts. At Ever-Power, you will discover rings and pinions with OE quality that are designed for durability and reliability. Each set is manufactured to aid your vehicle’s optimal performance. The ring and pinions are mated during production and warmth treated for the precise hardness the application demands. These important pieces of hardware keep your automobiles moving. When a repair or replacement is necessary, you can look to Ever-power to provide the precise component required. The ring and pinions we share are built with the materials and procedures to meet OE specifications. As real replacement gears, they’re produced to the same criteria as the manufacturer’s parts. Compromising a component could mean compromising performance. And there’s you don’t need to do that when you’re able to look to our comprehensive gear inventory.
Gear Sets for Commercial Vehicles

Ever-Power new planetary reducers employ a floating sun gear rather than a set position one.
The word ”There’s nothing new beneath the sun’ certainly pertains to planetary reducers. And, while floating sunlight gears have been around quite a while, some engineers might not be aware of the huge benefits this unusual gear style can offer.
Traditionally, planetary reducers possess used a set sun gear, where in fact the centre gear is mounted on or machined into the shaft. When this set 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 concept, the sun may be the driver, or pinion, in the apparatus set,’Ever-Power design engineer Scott Hulstein said. ‘Because sunlight 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 however, a sun equipment which is securely set upon a shaft will intermittently have more load using one planet gear than on another equipment Hulstein explained. ‘By allowing the sun gear to float, it centres itself among the three planets and produces constant, equal load sharing.’
Equal load posting is just one of the benefits of this design. The floating sun gear provides ‘true involute actions,’ according to Hulstein. Accurate involute action happens when the rolling motion between your mating gears is as complete as possible. The advantage of this full meshing of gears is longer reducer lifestyle, since less internal equipment slippage means fewer damaged gear teeth.
That also means lower noise amounts. When sunlight gear is allowed to completely roll into the world gears, there’s much less ‘rattling’ as the teeth mesh. In place, the Ever-Power product provides ‘designed out’ the apparatus mesh noise by allowing sunlight gear to float into place.
So why use a fixed sun gear at every? ‘Fixed sun gears are often used in true servo applications,’ Greg Pennings, Ever-Power Consumer Advocate, explained. ‘A fixed sun gear is necessary when exact positioning and low backlash are an integral part of the app.’ 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 sunlight gears were designed 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 are able to exceed the torque ratings of similar sized and larger sized parallel shaft reducers, yet maintain a lesser noise levels.
Sun, Ring and Planet
The most basic type of planetary gearset is shown in the figures above. The figure at remaining shows a three-dimensional view while the figure at correct offers a cross-section. In this geartrain, inputs and result can be taken from the carrier, ring and sunlight gears, and just the earth experiences epicyclic motion. This is the many common type of planetary gearset (apart from the differential) and it finds application in rate reducers and automated transmissions. Invest the aside a cordless drill, you’ll probably find this type of planetary gearset right behind the drill chuck.
Two Suns – Two Planets gearset
Cross-sectional view
Two Suns, Two Planets
The gearset shown above has two sun gears, and the two planet gears (the yellow gears) rotate as an individual unit. The sun gears (green and brownish) can rotate independently of one another. The inputs and result can be selected from either sun gear and/or the carrier. Very high speed reductions can be achieved with this unit, nonetheless it can suffer from low efficiency if not really designed correctly.
Reddish sun input – purple sun fixed
Purple sun input – reddish 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 remaining and counterclockwise in the computer animation at right – despite the fact that the sun rotates counterclockwise in both cases.
The Differential
The gearset proven above is different from the preceding gearsets for the reason that it is composed of miter gears rather than spur (or helical) gears. The ‘sun’ gears are the ones that do not undergo the epicyclic motion experienced by the planet. And the differential can be utilized to measure the difference in velocity between two shafts for the purpose of synchronization. Furthermore, the differential is often used in auto drive trains to conquer the difference in wheel swiftness when a car encircles a corner.