HEAVY DUTY
Sun Gears for Construction & Heavy Machinery
Travel, hub and planetary drives in mobile equipment can expose sun gears to shock, contamination and high peak torque. Replacement work should begin from drawings or measured mating components.
DutyInterfaceInspection
Application-specific RFQ checklist
| Parameter | What to Specify |
|---|---|
| Duty data | Peak torque, shock events, starts under load, reversals, operating hours and contamination. |
| Geometry | Mating planet and ring gear data, especially for replacement components. |
| Interface | Hub, shaft or spline dimensions plus axial retention and bearing relationships. |
| Risk point | Shock and edge loading can make material, case depth and tooth contact decisive. |
Confirm the whole planetary interface
For mobile drives, tooth strength must be reviewed together with spline or shaft support, lubrication, shock loading and the way the carrier distributes load across the planets.
If the original drawing is unavailable, measure the sun gear together with at least one mating planet and record the ring-gear tooth count, carrier arrangement and any hub or shaft interface.
RFQ
Request a Quote / Send RFQ
Send photos of the drive, sun gear measurements, mating-gear data, peak torque or machine model, operating environment and required quantity.
MOQFlexible by product type and total order value.
SamplesNew customers may request 1-5 pieces when the part and process are suitable.
Mixed ordersDifferent sun gear or related planetary-component models can be combined when the total order value is around USD 1,500 or above.
Small ordersOrders from 1-2 pieces can be discussed, normally with a higher unit cost.
DeliveryStandard parts: 10-25 working days. Custom components: 20-45 working days. Project equipment: 45-120 working days.
Trade termsEXW, FOB, CIF and DAP are commonly supported. FCA, CFR, CPT, CIP and DDP can be discussed case by case.
