Precision-focused cycloidal drive options for repeatable positioning, smooth low-speed output, and controlled lost motion.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Backlash target | Application-specific precision grade | Backlash is the key sourcing filter for precision positioning projects. |
| Torsional stiffness | Matched by size and structure | Stiffness affects settling, vibration, and servo tuning behavior. |
Reference Model Specs
Use these values for first-pass actuator sizing. Final drawing, CAD availability, inspection evidence, and acceptance limits are confirmed during RFQ.
| Model | OD | Ratios | Rated / Peak | Backlash | Stiffness | Weight | Best Fit |
|---|---|---|---|---|---|---|---|
| WF07 / MC-40 | 40 mm | 21:1, 41:1 | 15 Nm / 45 Nm | <= 1 arcmin | 1.1 Nm/arcmin | 0.42 kg | Compact humanoid wrist, elbow, inspection, and light robot axes |
| WF17 / MC-79 | 79 mm | 21:1, 41:1, 61:1 | 50 Nm / 150 Nm | <= 1 arcmin | 6 Nm/arcmin | 0.85 kg | Humanoid elbow/knee, quadruped joints, compact QDD actuators |
| WF25 / MC-107 | 107 mm | 21:1, 31:1, 41:1, 51:1, 81:1 | 110 Nm / 330 Nm | <= 1 arcmin | 24 Nm/arcmin | 2 kg | High-load humanoid, exoskeleton, and compact robot joint axes |
| Decision Point | Choose When | Verify Before Quote | Next Internal Step |
|---|---|---|---|
| Backlash target is the first sourcing filter | Best for engineers comparing cycloidal, harmonic, and planetary reducer tradeoffs. Use this path when backlash target (Application-specific precision grade) is more important than starting from a generic gearbox size. | Backlash is the key sourcing filter for precision positioning projects. Include backlash target and measurement method in the first RFQ packet. | Compare Product Families |
| Mechanical interface risk is visible early | Define backlash measurement method and acceptance threshold. | Unclear backlash test method: Agree the measurement load, direction, and acceptance report format. | Send RFQ Package |
| Sample acceptance must be measurable | Use prototype planning when torsional stiffness must be confirmed against buyer-side machine tests. | Wrong comparison baseline: Compare cycloidal, harmonic, and planetary options against the same duty profile. | Plan Prototype Validation |
| Phase | Engineering / QC Checkpoint | Buyer Output |
|---|---|---|
| Requirement baseline | Backlash target and measurement method; Repeatability and stiffness expectations. Confirm drawing revision, quantity, destination, and timeline in the same packet. | A quote-ready RFQ sheet that separates required performance from preferred options. |
| Engineering fit review | Define backlash measurement method and acceptance threshold. Separate repeatability, lost motion, torsional stiffness, and ratio error. Record open issues before sample cost and lead time are frozen. | A reducer shortlist and issue log for Low Backlash Cycloidal Drive. |
| Prototype or incoming validation | Measure backlash target and torsional stiffness against the agreed method. Agree the measurement load, direction, and acceptance report format. | Inspection and test evidence with pass/fail limits, measured values, and revision actions. |
| Batch control and export readiness | Wrong comparison baseline: tie the control plan to outgoing inspection, packaging, labeling, and shipment records. | Repeat-order package covering drawing baseline, CTQ records, packaging rules, forecast, and Incoterm. |
Manufacturing Evidence Pack
Use this pack to move a reducer inquiry from catalog interest to buyer-reviewable engineering evidence. The current page can frame the evidence path; approved reports, certificates, and drawings still need to come from the actual model-family review.
Scope
Product evidence path
Source
/products/low-backlash-cycloidal-drive
These images support product recognition and envelope review. They are not inspection reports, certificates, or measured test results.
Buyer Review
Tooth profile, pin wheel, eccentric shaft, housing datum, bearing fit, and output interface reviewed as one reducer system.
Artifact to Request
Process photos, CTQ dimension list, approved 2D drawing, CMM or critical-dimension record when available.
Release Status
Requires model-family approval
Buyer Review
Which material route and hardness target apply to this model instead of a generic catalog claim.
Artifact to Request
Material route note, heat-treatment target, hardness inspection field, and sample-lot traceability scope.
Release Status
Do not assume one route for every model
Buyer Review
Backlash method, run-in state, no-load torque, stiffness expectation, noise observation, and smooth low-speed motion.
Artifact to Request
Backlash measurement method, sample acceptance table, no-load torque check, run-in note, and buyer limits.
Release Status
Needs measured sample data
Buyer Review
Envelope, motor pilot, hollow bore, output flange, fastener access, tolerances, and NDA needs before STEP release.
Artifact to Request
Closest reference STEP or PDF, revision note, restricted-drawing release rule, and engineering contact path.
Release Status
Released by engineering check
Buyer Review
Inspection fields, packing method, destination paperwork, batch labeling, sample scope, and repeat-order controls.
Artifact to Request
Outgoing QC checklist, packaging/export record example, batch traceability field, and approved shipping constraints.
Release Status
Align before PO
| Evidence Area | Buyer Review | Artifact to Request | Release Status |
|---|---|---|---|
| Machining route | Tooth profile, pin wheel, eccentric shaft, housing datum, bearing fit, and output interface reviewed as one reducer system. | Process photos, CTQ dimension list, approved 2D drawing, CMM or critical-dimension record when available. | Requires model-family approval |
| Material and heat treatment | Which material route and hardness target apply to this model instead of a generic catalog claim. | Material route note, heat-treatment target, hardness inspection field, and sample-lot traceability scope. | Do not assume one route for every model |
| Backlash and motion check | Backlash method, run-in state, no-load torque, stiffness expectation, noise observation, and smooth low-speed motion. | Backlash measurement method, sample acceptance table, no-load torque check, run-in note, and buyer limits. | Needs measured sample data |
| Drawing and revision control | Envelope, motor pilot, hollow bore, output flange, fastener access, tolerances, and NDA needs before STEP release. | Closest reference STEP or PDF, revision note, restricted-drawing release rule, and engineering contact path. | Released by engineering check |
| Outgoing QC and export pack | Inspection fields, packing method, destination paperwork, batch labeling, sample scope, and repeat-order controls. | Outgoing QC checklist, packaging/export record example, batch traceability field, and approved shipping constraints. | Align before PO |
No certificate or test result should be displayed until approved. Keep the page useful by showing the review path, then attach real evidence during RFQ or after factory approval.
CAD / STEP Data Pack
Use this reducer family request when your team needs a model file, envelope drawing, or engineering data before committing layout space. We verify the target family, revision, and release constraints first so buyers do not design around the wrong CAD file.
Confirm released model files, closest reference family, and file-release constraints before CAD freeze.
Align motor pilot, output flange, hollow bore, cable route, bolt circle, and axial envelope early.
Request backlash method, run-in note, inspection fields, and sample acceptance data for the selected family.
Inquiry Email
Best for sending NDA terms, drawings, or a specification sheet.
Instant Chat
+8618857971991
Best for quick model availability and file-release checks.
Submit the minimum engineering context needed for model-file screening and revision-safe follow-up.
Direct RFQ
The form keeps this product family attached to the inquiry so sales engineering can review ratio, torque, backlash, interface, quantity, and delivery assumptions in one thread.
No. The right choice depends on ratio, torque density, shock load, backlash, package size, life, and budget.
Yes. Provide the required target, test method, duty profile, and prototype acceptance plan.
Engineering Route
Low Backlash Cycloidal Drive should lead to a clear application review, DFM check, prototype evidence plan, and RFQ handoff instead of stopping at a catalog comparison.
Check reducer architecture, model family, envelope class, and CAD availability before the quote is treated as final.
Review the machine or robot axis context so torque, shock, backlash, stiffness, and validation risk stay tied to real use.
Move from fit review into DFM, sample validation, inspection records, packaging, and repeat-order control.
Use these links when the buyer is ready to send requirements, compare directories, or review sourcing guidance.
Inquiry Email
Include ratio, torque, backlash, interface drawings, quantity plan, and destination terms.
Instant Chat
+8618857971991
Use chat for quick routing; drawings and technical details can move to email.
