Gear Cutting & Power Skiving
Spur and helical teeth with accessible blank geometry.
Custom sun gears, planet gears, ring gears, carriers and spline sleeves for compact reducers. Send the individual drawings and quantities per assembly to quote the parts you need.

A planetary stage combines a central sun gear, planet gears carried around it and an internal ring. The arrangement can deliver compact speed reduction, but the behavior of one component depends on the others. Part drawings should therefore be connected to an assembly reference.
The KERVELD product range includes small and multi-stage planet gears, reducer sun gears, ring gears, planet carriers and connecting sleeves. We supply the specified components; complete reducer performance is defined and validated at assembly level.



Include these details with your drawing so we can assess manufacturing, inspection and quotation requirements.
| Review item | What to define |
|---|---|
| Assembly map | Sun, planet, ring and carrier identities, revisions and supply scope. |
| Gear relationships | Tooth counts, module, ratio reference and mating tooth data. |
| Carrier features | Planet positions, pin interfaces, mounting datums and bearing fits. |
| Matched requirements | Part marking, pairing or assembly checks specified by the buyer. |
| Production definition | Quantity per assembly, material, treatment and required reports. |
Share your dimensions, material, accuracy requirements and order quantity. We confirm the manufacturing options and delivery requirements for your specific part.
A component-set inquiry connects gear cutting and grinding with the machining of carrier and shaft interfaces. The process and measurement plan must reflect the assembly datums, especially where planet positions or ring location influence the finished stage. Include separate drawings for every part in the supply scope.
View inspection and quality documentationSpur and helical teeth with accessible blank geometry.
Journal fits, shoulders and integrated transmission features.
Profile, lead, pitch or other characteristics specified for the part.
Consistency of sun, planet and ring definitions.
Pin location and critical mounting datums.
Part numbers, drawing revisions and any agreed matching records.
Travel and slewing reduction component sets.
View application requirementsCompact motion-control reduction stages.
View application requirementsTransmission components for a defined e-drive layout.
View application requirementsYes. Include a bill of materials and identify quantities per assembly so the quoted scope is clear.
Our range here covers planetary parts. If you need a complete reducer or assembly testing, include those requirements so we can confirm the scope before quotation.
State the mating part numbers, revisions, marking requirements and any agreed assembly-level checks.
Share your drawing, quantity and application. We will review the manufacturing and inspection requirements, then contact you to clarify any details needed for a quotation.