Parametric cycloidal profile
Generate the disc from ring-pin count, pin radius, pitch circle and eccentricity with the correct lobe count and reduction.
ONLINE CYCLOIDAL GEAR GENERATORBuilt for real geometry
Design the complete cycloidal drive, not only the disc.
Generate cycloidal reducer geometry from pin circle, eccentricity and reduction ratio through to bearings, output pins, shaft interfaces and enclosure parts.
No installation · Guest access available · Free account optional
REAL GEARSUITE WORKSPACELIVE 3D
N−1lobes from ring-pin count
1–3balanced disc configurations
STEPpart and assembly export
FROM CALCULATION TO PARTOne continuous model
A cycloidal generator that understands the surrounding machine
Cycloidal reducers are often reduced to a single profile curve. A working drive also needs an eccentric input, ring pins, output pins, clearances, bearings, a shaft and a housing that keep every moving layer aligned.
GearSuite calculates those relationships as one assembly. It checks the generated disc rim, pin engagement, output-hole motion and bearing seats while the exploded view makes the stack readable before any material is cut.
CAPABILITIESUseful engineering detail
What this generator handles.
Multi-disc balancing
Configure one, two or three discs and inspect their phase, axial stack and remaining unbalance.
Output mechanism
Size output pins, holes, sleeves and bearing options against their real orbital motion.
Bearings and shaft seats
Match catalogue bearings to the eccentric, input, journal and output interfaces with fit-aware geometry.
Housing and motor interface
Build enclosure layers, flanges, fasteners and NEMA motor patterns around the reducer.
Interactive exploded view
Move continuously from assembled to exploded and isolate individual solids before export.
WORKFLOWFour direct steps
Configure. Inspect. Validate. Export.
- 01
Set ratio and envelope
Choose pin count, eccentricity, pin circle and disc thickness or start from a target ratio.
- 02
Resolve the interfaces
Select bearings, shaft bore, output pins, motor frame and enclosure proportions.
- 03
Validate the stack
Inspect clearances, balance, buildability and every functional layer in 3D.
- 04
Export the reducer
Download individual STL or STEP parts and supported manufacturing sets.
QUESTIONSDirect answers
Cycloidal drives FAQ.
How is the cycloidal reduction ratio calculated?+
For the standard fixed ring-pin arrangement, a disc with one fewer lobe than ring pins produces a reduction based on that tooth-count difference. GearSuite reports the exact direction and output speed for the selected configuration.
Can I generate a complete cycloidal gearbox?+
Yes. The workspace includes the disc, ring pins, eccentric input, output mechanism, bearings, shaft features, housing and motor interface.
Can cycloidal parts be exported as STEP?+
Supported cycloidal solids can be exported through GearSuite’s protected STEP service; STL export is also available for mesh workflows.
ONLINE CYCLOIDAL GEAR GENERATOR