sun planet gear

Our gear category supplies the quality parts to fit your vehicle and its desired performance. You can search or shop for rings and pinions, part gears, planetary ring 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 needs. Our durable gears are authentic, OE-quality parts created to specifications for demanding duty. Store now to trust the part you utilize for your repair.

We stock the product quality sun planet gear Ever-power gears that meet up with the needs of a variety of commercial, industrial 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 elements. At Ever-Power, you can find rings and pinions with OE quality that are designed for durability and reliability. Each set is manufactured to support your vehicle’s optimal performance. The ring and pinions are mated during manufacturing and temperature treated for the exact hardness the application demands. These important pieces of hardware keep your vehicles moving. When a repair or replacement is required, you can look to Ever-power to supply the exact component required. The ring and pinions we share are designed with the materials and procedures to meet up OE specifications. As authentic replacement gears, they’re produced to the same requirements as the manufacturer’s parts. Compromising a component could mean compromising performance. And there’s no need to do that when you can look to our extensive 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 become aware of the benefits this unusual gear design can offer.
Traditionally, planetary reducers possess used a fixed 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 motion 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 sun equipment? ‘In the planetary idea, the sun may be the driver, or pinion, in the gear set,’Ever-Power style engineer Scott Hulstein stated. ‘Because the sun gear is in continuous connection with the planets, it’s important that it’s flawlessly centred among the three planets in order to provide equal load sharing among itself and all three planets.’
Because of normal manufacturing tolerances nevertheless, a sun gear which is securely fixed on a shaft will intermittently have more load on one planet gear than on another equipment Hulstein explained. ‘By permitting the sun gear to float, it centres itself among the three planets and generates continuous, equal load sharing.’
Equal load posting is just one of the advantages of this design. The floating sun gear provides ‘true involute action,’ according to Hulstein. True involute action occurs when the rolling movement between the mating gears is as complete as possible. The benefit of this total meshing of gears is certainly longer reducer life, since less internal equipment slippage means fewer damaged gear teeth.
That also means lower noise levels. When sunlight gear is permitted to completely roll in to the world gears, there’s much less ‘rattling’ as one’s teeth mesh. In place, the Ever-Power product offers ‘designed out’ the apparatus mesh noise by allowing the sun gear to float into place.
So why make use of a set sun gear at every? ‘Fixed sun gears tend to be used in true servo applications,’ Greg Pennings, Ever-Power Client Advocate, explained. ‘A fixed sun gear is essential when precise positioning and low backlash are an intrinsic part of the application.’ Ever-Power engineers, nevertheless, were less worried about low backlash and more interested with higher torque and/or lower sound applications.
Our planetary reducers with floating sun gears were made to contend with parallel shaft reducers, where backlash was less critical,’ Pennings said.
Utilizing the floating sun gear concept, the Ever-Power planetary reducers can easily exceed the torque ratings of similar sized and larger sized parallel shaft reducers, yet maintain a lower noise levels.
Sun, Ring and Planet
The most basic kind of planetary gearset is demonstrated in the figures above. The figure at remaining shows a three-dimensional view as the figure at correct offers a cross-section. In this geartrain, inputs and output can be extracted from the carrier, ring and sunlight gears, and only the planet experiences epicyclic motion. This is the most common kind of planetary gearset (apart from the differential) and it finds application in speed reducers and automatic transmissions. Invest the aside a cordless drill, you’ll 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 shown above has two sun gears, and both planet gears (the yellow gears) rotate as a single unit. Sunlight gears (green and brown) can rotate independently of one another. The inputs and output can be selected from either sun equipment and/or the carrier. High speed reductions may be accomplished with this unit, but it can have problems with low efficiency if not really designed correctly.
Red sun input – purple sun fixed
Purple sun input – red 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 computer animation at remaining and counterclockwise in the animation at right – even though sunlight rotates counterclockwise in both instances.
The Differential
The gearset proven above is different from the preceding gearsets in that it is composed of miter gears instead of spur (or helical) gears. The ‘sun’ gears are those that do not go through the epicyclic movement experienced by the planet. And the differential can be used to gauge the difference in speed between two shafts for the purpose of synchronization. In addition, the differential is frequently used in auto drive trains to conquer the difference in wheel quickness when a car goes around a corner.

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