Our gear category supplies the quality parts to suit your vehicle and its desired performance. You can search 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 individual carrier elements, such as for example gear sets, to address specific servicing needs. Our heavy duty gears are legitimate, OE-quality parts built to specifications for demanding duty. Store now to trust the part you use for your repair.

We stock the quality Ever-Power gears that meet the needs of a range of commercial, commercial and military applications, both off-highway and on-highway. Our Gears inventory features the ring and pinion product line from Ever-Power. They are vital parts within our stock of carrier parts. At Ever-Power, you will discover bands and pinions with OE quality that are built for toughness and reliability. Each arranged is manufactured to aid your vehicle’s optimal performance. The ring and pinions are mated during production and warmth treated for the specific hardness the application demands. These essential pieces of equipment keep your automobiles moving. When a repair or substitute is necessary, you can look to Ever-power to provide the specific component required. The ring and pinions we share are designed with the materials and processes to meet up OE specifications. As genuine replacement gears, they’re manufactured to the same standards as the manufacturer’s parts. Compromising a component could mean compromising sun planet gear functionality. And there’s no need to perform that when you can look to our comprehensive gear inventory.
Gear Sets for Commercial Vehicles

Ever-Power new planetary reducers employ a floating sun equipment rather than a fixed position one.
The word ”There’s nothing new under the sun’ certainly applies to planetary reducers. And, while floating sunlight gears have already been around quite a while, some engineers may not be aware of the 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 into the shaft. When this set sun equipment revolves, it turns the planet gears to create motion and/or power. Ever-Power new planetary reducers, however, are employing a floating sun equipment rather than a fixed position sun gear.
Why a floating sun equipment? ‘In the planetary idea, the sun is the driver, or pinion, in the gear set,’Ever-Power design engineer Scott Hulstein said. ‘Because the sun gear is in constant connection with the planets, it’s important that it is perfectly centred among the three planets to be able to provide equal load posting among itself and all three planets.’
Due to normal manufacturing tolerances nevertheless, a sun equipment which is securely fixed upon a shaft will intermittently have more load using one planet gear than on another gear Hulstein explained. ‘By allowing the sun gear to float, it centres itself among the three planets and produces constant, equal load sharing.’
Equal load sharing is merely one of the benefits of this design. The floating sunlight gear provides ‘accurate involute actions,’ according to Hulstein. Accurate involute action occurs when the rolling motion between your mating gears is really as complete as feasible. The benefit of this comprehensive meshing of gears is definitely longer reducer lifestyle, since less internal gear slippage means fewer damaged gear teeth.
That does mean lower noise levels. When sunlight gear is permitted to completely roll into the planet gears, there’s less ‘rattling’ as the teeth mesh. In effect, the Ever-Power product has ‘designed out’ the gear mesh sound by allowing the sun gear to float into place.
So why use a fixed sun gear at almost all? ‘Fixed sun gears are often used in accurate servo applications,’ Greg Pennings, Ever-Power Client Advocate, explained. ‘A set sun gear is essential when precise positioning and low backlash are an integral part of the program.’ Ever-Power engineers, nevertheless, were less concerned with low backlash and more interested with higher torque and/or lower sound applications.
Our planetary reducers with floating sunlight gears were designed to compete with parallel shaft reducers, where backlash was less critical,’ Pennings said.
By using the floating sun equipment concept, the Ever-Power planetary reducers have the ability to exceed the torque rankings of similar sized and larger sized parallel shaft reducers, and yet maintain a lower noise levels.
Sun, Ring and Planet
The most basic type of planetary gearset is shown in the figures above. The figure at left shows a three-dimensional watch as the figure at right provides a cross-section. In this geartrain, inputs and result can be extracted from the carrier, ring and sun gears, and just the planet experiences epicyclic motion. This is the most common type of planetary gearset (apart from the differential) and it discovers application in speed 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
Cross-sectional view
Two Suns, Two Planets
The gearset proven above has two sun gears, and the two planet gears (the yellow gears) rotate as an individual unit. Sunlight gears (green and dark brown) can rotate independently of 1 another. The inputs and result can be chosen from either sun equipment and/or the carrier. Very high speed reductions may be accomplished with this unit, but it can suffer from low efficiency if not 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 sunlight as input and the other sunlight fixed. Note that the carrier rotates clockwise in the animation at left and counterclockwise in the computer animation at right – even though sunlight rotates counterclockwise in both cases.
The Differential
The gearset demonstrated above differs from the preceding gearsets for the reason that it is composed of miter gears instead of spur (or helical) gears. The ‘sun’ gears are the ones that do not go through the epicyclic motion experienced by the earth. And the differential can be used to measure the difference in swiftness between two shafts for the purpose of synchronization. Furthermore, the differential is often used in auto drive trains to overcome the difference in wheel acceleration when a car encircles a corner.