Mating planet gears
Confirm the mating tooth count, pitch system and pressure angle rather than identifying the sun gear in isolation.
| Parameter | What to Specify |
|---|---|
| Gear section | Module/DP, pressure angle, tooth count and tooth finish. |
| Shaft journals | Diameters, fits, lengths and surface-finish requirements. |
| Spline / key / thread | Drive and retention features per drawing. |
| Bearing seats | Datum, shoulder and runout relationships. |
| 熱処理 | Controlled with attention to gear and shaft requirements. |
| Inspection | Gear runout plus shaft/spline dimensional and geometric checks as specified. |
These are the questions to close before production.
Confirm the mating tooth count, pitch system and pressure angle rather than identifying the sun gear in isolation.
Define the datum relationship among gear teeth, bore/spline/shaft and bearing seats.
Rated and peak torque, speed, reversals, shock and life influence material/process decisions.
Agree the report content before production when tooth or interface verification is critical.
Integrated gear-and-shaft components for planetary systems where gear teeth, journals, splines and retention features share one datum structure.
For an existing sun gear shaft, measure the complete shaft stack-up including journals, shoulders, spline or key features and their runout to the gear teeth. Photos are useful for context, not dimensional approval.

Send the drawing, tooth data, mating-component information, duty and quantity. We will review the interface before quotation.