Splined Sun Gear Interfaces: What to Measure
De vertanding kan net zo belangrijk zijn als de tandwielen zelf. Een correct zonnewiel moet zowel in de planeetwielen grijpen als op de aandrijfas of naaf passen.
Spline identity
State the governing spline standard or provide a complete tooth definition, not only the major diameter.
Fit and datum
Spline fit, effective length, runout to the gear teeth and axial shoulder locations influence assembly.
Inspectie
Define whether spline gauges, over-pin measurements or runout reports are required.
Use the drawing as the controlled record
A technical guide can explain which variables matter, but the final sun gear must be approved from the actual drawing and operating requirement.
If a value is missing, identify it for confirmation instead of copying a dimension or material from a different supplier or gear family.
RFQ checklist
Send the sun gear drawing or measured tooth data, mating planet/ring information, interface dimensions, material/process requirements, duty, quantity and destination.
Deeper buyer guidance
A spline adds a second tooth system to the part, so fit, effective length and concentricity must be controlled independently from the external gear mesh.
For new designs, use the complete planetary geometry and functional datums before deciding the process route. For replacement work, use photos and equipment references for context but let measured tooth and interface data control the new part.
What to control on the RFQ or drawing
| Item | What to define |
|---|---|
| Planetary mesh | Sun, planet and ring tooth data plus planet count when known. |
| Center interface | Bore, key, spline or shaft features with functional datums. |
| Operating duty | Rated/peak torque, speed, reversals/shock, life and environment. |
| Material/process | Controlled material, heat treatment, finish and coating requirements. |
| Acceptance | Gear/runout/dimensional checks and required documentation. |
Veelgestelde vragen
Can a visual match confirm interchangeability?
No. Similar outside dimensions can hide different pitch systems, pressure angles, profile shift or interface fits.
Should mating gear data be included?
Yes whenever available, because planetary geometry is easier to verify as a system.
What if a value is unknown?
Mark it as open and provide the available sample, mating component or application data rather than guessing.
Offerte aanvragen / Offerteaanvraag versturen
Stuur ons de tekening, tandgegevens, informatie over de aansluitende componenten, de belasting en de hoeveelheid. We zullen de interface beoordelen voordat we een offerte uitbrengen.
