Custom Epicyclic Gear Set
Matched sun, planet and internal ring gear scope for a drawing-led epicyclic transmission RFQ.
Product family
Planetary Gear Sets
Matched sun, planet and ring-gear projects reviewed as a complete epicyclic mesh system. RFQs should identify the input, output and restrained member, duty cycle, envelope, interfaces, material controls and inspection expectations.
Category overview
Define the complete engineering context
Planetary gear sets must be reviewed as one coordinated mesh system. Tooth geometry, planet spacing, carrier support, member roles and inspection methods affect the complete assembly rather than one isolated gear.
- Controlled tooth and mating-part data
- Installation datums and interface envelope
- Duty cycle, environment and acceptance method
RFQ product range
Planetary Gear Sets products
Select a product family to review its drawing inputs, mating relationships, duty questions and inspection planning.
Sun and Planet Gears
External sun and planet gears reviewed for mesh compatibility, carrier support and duty.
Application context
Where this product family is used
Servo and automation axes
Compact coaxial drives for reversing, indexing and positioning duties where motor inertia, torsional behavior and interface accuracy must be considered together.
Mobile and material-handling drives
Travel, wheel, swing and drum functions that require shock-load, sealing, bearing support and installation-envelope review.
Process machinery
Mixers, packaging lines, indexing tables and custom production equipment requiring compact multi-stage reduction.
Selection variables to include in the RFQ
| Data group | Information to provide |
|---|---|
| Member relationship | Identify the input, output and restrained member for every operating mode. |
| Ratio and stages | State target ratio, allowable stages, rotation direction and available axial/radial envelope. |
| Tooth system | Provide module or DP, pressure angle, tooth counts, face width, profile/lead controls and mating data. |
| Carrier and pins | Clarify whether the carrier, planet pins, bearings and retention features are inside the supplier scope. |
| Duty | Describe continuous, peak, reversing, shock and emergency events with speed ranges. |
| Acceptance | Define backlash, contact, runout, gear inspection and assembly records required at release. |
Category FAQ
Can a ratio be quoted without assigning the member roles?
No reliable configuration can be selected from ratio alone. State which member is driven, which delivers output and which is fixed or controlled.
Should the gears be quoted as a matched set?
When tooth-thickness allocation, planet spacing or contact behavior is controlled at assembly level, the RFQ should identify the gears as a matched set and define the acceptance basis.
Is the carrier part of the gear-set scope?
It can be included or excluded, but the RFQ must state the boundary. Planet-pin support, bearings, retention and carrier stiffness still influence the gear review.
Engineering enquiry
Send the category-specific RFQ inputs
Attach the drawing or assembly sketch and identify the controlled geometry, interfaces, operating duty and required inspection records.