Hybrid mode: tool + reportCanonical URL onlyAlias: absolute encoder wheelScenario: 6mm bore fit
Encoder wheel fit checker for absolute encoder wheel alias decisions
This single canonical URL serves both encoder wheel and absolute encoder wheel alias intent, with a 6mm bore scenario for fit-stack screening. Use the tool first for immediate fit and signal-risk output, then use the report sections to verify assumptions, source boundaries, tradeoffs, and procurement actions.
Tool-first promise
Input measured encoder wheel fit data, get deterministic result, and move to clear next action.
Report trust layer
Review dated evidence, known/unknown boundaries, and risk mitigation before RFQ lock.
Single URL strategy
Absolute encoder wheel and 6mm bore phrasing stay merged into this canonical page.
Summary: key conclusions and who this applies to
Tool output solves immediate decision needs, while this section summarizes decision-grade conclusions and boundaries.
Core conclusion 1
Measured micrometer-level fit delta is mandatory; nominal 6mm or absolute encoder wheel wording alone is not procurement-safe.
Core conclusion 2
Electrical ceiling shrinks as PPR rises: under a 125 kHz reference, 2048 PPR maps to ~3662 RPM and 5120 PPR maps to ~1465 RPM before model-specific derating.
Core conclusion 3
ISO 3691-4:2023 remains a separate safety verification path, and unknown cross-vendor endurance corpus still requires pilot evidence before volume lock.
Absolute-position boundary
Absolute encoder wheel intent stays on this canonical page for sourcing and pre-screening, but projects that require singleturn/multiturn state retention, SSI/BiSS or industrial network interfaces, or safety-rated feedback need an engineering architecture review before supplier lock.
| Conclusion | Applies to | Boundary / Counter-example | Evidence | Refreshed |
|---|---|---|---|---|
| A nominal 6mm label is insufficient without measured bore/shaft data in micrometers. | Supplier comparison, incoming inspection, and pilot build release. | Nominal-only purchasing can hide interference or excessive clearance conditions. | S1, S2 | 2026-06-07 |
| Absolute encoder wheel searches belong on the encoder wheel canonical page unless the user needs an absolute-position encoder architecture report. | SEO routing, internal links, and buyer triage where alias wording overlaps encoder wheel sourcing intent. | If the user explicitly asks for multi-turn absolute encoder protocols, SSI/BiSS interfaces, or safety-rated absolute position devices, this page should hand off to a specialist architecture discussion rather than pretend to answer every protocol detail. | Alias merge decision, S3, S4 | 2026-06-07 |
| Resolution and accuracy are different decision dimensions, and quadrature decoding choice changes effective count interpretation. | Encoder selection for navigation feedback and stop-position repeatability. | Higher PPR alone does not guarantee higher absolute accuracy, and x4 decode expectations can overload channels if unbudgeted. | S3 | 2026-06-07 |
| Electrical response ceiling falls as PPR rises; at 125 kHz reference, high-PPR designs can hit electrical limits before mechanical RPM limits. | High-speed profiles using 2048 to 5120 PPR where control loops assume large RPM headroom. | 125 kHz is model-level reference, not a universal threshold; each encoder/controller chain still needs model-specific verification. | S3, S4 | 2026-06-07 |
| Cable strategy must separate wiring feasibility from EMC verification boundaries. | Installations with longer cable runs or noisy industrial routes. | Transmission-oriented guidance can be looser than EMC-oriented guidance, so one number cannot be reused as a global pass criterion. | S5 | 2026-06-07 |
| 6 mm sleeve availability is operationally common in AMT-family sourcing channels, but evidence quality is still partial until direct vendor verification is refreshed. | Prototype-to-production transition for AMR/AGV encoder wheel modules. | Catalog availability does not eliminate runout drift, sleeve installation variance, or retention failure risk. | S6, S7 | 2026-06-07 |
| ISO 3691-4 safety verification remains a separate gate; this page cannot be used as final conformance evidence. | AGV/AMR projects where procurement and engineering decisions feed safety documentation. | A passing pre-screen result does not replace formal system-level risk assessment and verification activities. | S8 | 2026-06-07 |
| There is no trusted open cross-vendor endurance corpus for 6mm bore fit reliability under identical duty. | Risk scoring and warranty exposure discussions before PO release. | Pending confirmation / 暂无可靠公开数据 requires pilot validation before large batch decisions. | S9 | 2026-06-07 |
| Absolute position feedback is a state-retention architecture choice, not proof that the wheel fit, interface, or safety case is complete. | Projects that use absolute encoder wheel wording because position must be known after restart or shaft movement. | Singleturn can answer position within one revolution; multiturn and controller state handling are needed when turns after power down matter. | S10, S11 | 2026-06-07 |
| Protocol choice is a first-order compatibility gate for absolute encoder wheel projects. | RFQs that mention SSI, BiSS C, CANopen, SAE J1939, EtherCAT, EtherNet/IP, PROFINET, IO-Link, or parallel output. | A mechanically acceptable wheel can still be unusable if the controller cannot poll, decode, certify, or diagnose the selected interface. | S10, S12 | 2026-06-07 |
| Safety-rated absolute position requires explicit certified product and system evidence; "absolute" alone is not a safety claim. | AGV/AMR programs where safe speed, safe position, or axis monitoring becomes part of the safety function. | Use a certified safety encoder path and formal ISO 3691-4 verification when safety functions depend on encoder feedback. | S13, S8 | 2026-06-07 |
Suitable audience
Mechanical engineers, controls teams, and sourcing leads who need fast go/review/redesign decisions with traceable assumptions for encoder wheel and absolute encoder wheel alias requests.
Not suitable audience
Teams expecting final certification or legal compliance sign-off directly from this page without test evidence.
Stage1b research enhance audit
This section records what was strengthened after baseline implementation so evidence and boundary quality are explicit.
| Claim area | Previous gap | Stage1b upgrade | Evidence tag |
|---|---|---|---|
| Absolute encoder wheel alias coverage | The canonical page answered encoder wheel and 6mm bore intent but did not explicitly name absolute encoder wheel as an alias cluster. | Added absolute encoder wheel phrasing in the hero, FAQ, internal anchors, metadata, and JSON-LD while preserving the single canonical route. | Alias merge decision, canonical routing audit |
| Electrical ceiling evidence density | The page mentioned frequency risk but lacked an actionable PPR-to-RPM conversion reference. | Added a reproducible electrical-envelope table (125 kHz reference) so teams can quickly map PPR to maximum electrical RPM. | S3, S4 |
| Cable boundary conflict handling | Long-cable risk existed but lacked explicit conditions and minimum actions. | Added line-by-line cable boundary table with risk triggers, including EMC-oriented hard-stop conditions. | S5 |
| Safety standard freshness | Safety context did not explicitly state the current ISO 3691-4 edition status. | Added standards status table showing ISO 3691-4:2023 current publication and explicit scope boundary. | S8 |
| 6 mm sleeve evidence provenance | 6 mm sleeve references were not clearly labeled as primary vs distribution-layer evidence. | Reclassified sleeve/adapter sourcing evidence as partially known where direct vendor-page capture is still pending. | S6, S7 |
| Unknown reliability corpus visibility | Cross-vendor endurance uncertainty could be overlooked during RFQ comparisons. | Kept unknown corpus as an explicit blocker and tied it to mandatory pilot evidence before batch decisions. | S9 |
| Failure-path execution | Review/redesign outcomes still risked abstract follow-up. | Added explicit minimum actions in fit boundary, cable boundary, and standards scope tables to support immediate next-step execution. | Boundary and standards tables |
| Absolute-position concept boundary | The page said absolute encoder wheel was an alias, but did not clearly separate wheel sourcing from singleturn/multiturn absolute-position requirements. | Added source-backed distinctions for absolute numerical position, power-down retrieval, and when a project needs singleturn or multiturn architecture review. | S10, S11 |
| Protocol and controller compatibility boundary | Protocol-heavy searches such as SSI, BiSS, CANopen, or Industrial Ethernet were only mentioned as a handoff case. | Added protocol evidence and a comparison row showing that absolute encoder interface selection is a controller architecture task, not just a wheel fit task. | S10, S12 |
| Functional-safety overclaim risk | The page warned that compliance was separate, but did not explicitly show that safety-rated absolute encoders require certified product evidence. | Added SICK safety-encoder evidence and a risk row clarifying that "absolute" is not equivalent to SIL/PL certification. | S13, S8 |
Known evidence
S1-S5, S8, and S10-S13 provide direct anchors for fits, signal rules, cable boundaries, current safety-standard context, absolute-position scope, protocols, and safety encoder limits.
Partially known evidence
S6-S7 are distribution-layer evidence and remain useful for sourcing context, but still require direct vendor-document refresh before final lock.
Unknown evidence
S9 remains unresolved, so pilot proof is required before volume decisions.
Methodology, data sources, and decision boundaries
Report layer for trust: formulas, source states, and limitation markers are shown directly so teams can audit assumptions.
| Method item | Formula / Rule | Why it matters |
|---|---|---|
| Fit delta window | delta_um = (bore_diameter - shaft_diameter) * 1000 | Converts sub-millimeter fit into micrometer scale so clearance/interference risk can be compared directly. |
| Linear resolution | mm_per_pulse = (pi * wheel_OD_mm) / PPR | Links encoder pulse density to traveled distance granularity for route-control decisions. |
| Pulse frequency budget | frequency_hz = (RPM * PPR) / 60 | High-frequency channels can exceed controller or cable integrity limits before mechanical limits are hit. |
| Speed coverage ratio | surface_speed / target_speed | Checks whether wheel-surface kinematics support your commanded motion envelope with margin. |
| Mechanical stability index | runout_term + fit_term + mount_term + vibration_term + temperature_term | Aggregates assembly and environment effects into one pre-screen signal for quick escalation decisions. |
| Signal load percent | (frequency_hz / nominal_limit_hz) * cable_penalty | Expresses electrical margin with respect to output topology and cable burden in one comparable metric. |
| Source | Scope | Date marker | Status | Note |
|---|---|---|---|---|
| ISO 286-1:2010 | Basis of tolerances, deviations, and fits for linear sizes | Edition 2 (2010-04), confirmed in 2021; checked 2026-06-07 | Known | Defines the tolerance system foundation used for hole/shaft fit classification (S1). |
| ISO 286-2:2010 | Tables of tolerance classes and limit deviations for holes/shafts | Edition 2 (2010-06), confirmed in 2021; checked 2026-06-07 | Known | Provides table-based limits used to contextualize 6mm bore tolerance windows (S2). |
| US Digital white paper: Resolution, Accuracy, and Precision | Resolution/accuracy distinction and CPR/PPR interpretation | Page checked 2026-06-07 | Known | Confirms resolution, accuracy, and precision are independent, and quadrature interpretation changes effective count rate (S3). |
| Omron E6C3-C family specification page | Max response frequency, max speed, environment and protection examples | Spec page checked 2026-06-07; page shows 2016-02-09 update and catalog PDF shows 125 kHz reference | Known | Provides model-level electrical and mechanical envelope references for frequency/RPM boundary mapping (S4). |
| Omron rotary encoder precautions for correct use | Cable extension guidance, EMC cable-length boundary, and usage cautions | Page checked 2026-06-07 | Known | Adds cable-length risk boundaries and minimum wiring actions for procurement and field deployment checks (S5). |
| DigiKey highlight: AMT10/AMT10E incremental encoder kits | 2 mm to 8 mm bore adapters and configurable PPR family range summary | Published 2021-11-30; checked 2026-06-07 | Partially known | Useful for fast sourcing context, but distributor summary should be confirmed against the latest vendor primary docs before PO lock (S6). |
| DigiKey product detail: AMT-6MM sleeve kit | 6 mm red sleeve SKU for AMT encoder family | Product detail checked 2026-06-07 | Partially known | Confirms purchasable 6 mm sleeve SKU context, but still requires direct vendor assembly specification confirmation for final process controls (S7). |
| ISO 3691-4:2023 | Safety requirements and verification for driverless industrial trucks and systems | Edition 2 (2023-06), checked 2026-06-07 | Known | Sets the current safety-system frame; this page remains a pre-screen input and cannot replace formal conformance verification (S8). |
| Open cross-vendor 6mm bore endurance dataset | Unified field failure rates by fit class under identical duty | As of 2026-06-07 | Unknown | Pending confirmation / 暂无可靠公开数据: no reliable open dataset found for this exact comparison (S9). |
| Encoder Products Company absolute encoder overview | Single-turn vs multi-turn absolute position retention and interface families | Page checked 2026-06-07; page also flags Model 925/960 limited application support effective 2025-12-31 | Known | Confirms multi-turn absolute encoders store turns-counting information for retrieval after power down and that SSI, BiSS C, CANopen, EtherCAT, EtherNet/IP, PROFINET, SAE J1939, IO-Link, and parallel options are product-family choices rather than one universal interface (S10). |
| ifm absolute encoder technology note | Absolute numerical value per angular position; singleturn/multiturn boundary | Page checked 2026-06-07 | Known | Supports the concept boundary: absolute feedback can remove homing for known angular position, but the project still must decide whether singleturn or multiturn state is required (S11). |
| BiSS Interface / Renishaw BiSS support | BiSS C as a fast synchronous serial interface for absolute encoders | BiSS C protocol document listed 2024-07; pages checked 2026-06-07 | Known | Adds protocol boundary evidence: absolute encoder wheel projects that require BiSS/SSI/controller integration should move from alias sourcing to architecture review (S12). |
| SICK AFS/AFM60S Pro safety encoder family | Functional-safety absolute encoder certification, SIL/PL scope, and safe positioning use case | SICK family page checked 2026-06-07; public page crawled within June 2026 | Known | Shows that safety-rated absolute encoders are explicitly certified products; the word absolute alone does not create SIL/PL evidence for an encoder wheel assembly (S13). |
| Boundary condition | Threshold | Risk if ignored | Minimum action |
|---|---|---|---|
| Bore-to-shaft fit delta (um) | fit: 5-35 | review: -5 to 60 | redesign: outside review range | Slip, wobble, crack risk, or assembly damage from force-fit mismatch. | Measure both bore and shaft lots, then adjust tolerance class or mount strategy before procurement lock. |
| Radial runout | fit: <=0.08 mm | review: <=0.15 mm | redesign: >0.15 mm | Pulse jitter and repeatability drift in low-speed precise positioning. | Rework hub concentricity, fixture method, or mounting stack before field trials. |
| Signal load percent | fit: <=78% | review: <=100% | redesign: >100% | Missed counts, unstable edge detection, or controller-side decode errors. | Lower PPR/RPM demand, shorten cable, or switch to differential line-driver interface. |
| Reference electrical speed ceiling (model example) | check max_rpm <= (max_response_frequency_hz * 60) / PPR, using 125 kHz as a representative example | Controller-side decode can saturate before mechanical speed limits are reached. | Treat 125 kHz as reference only; compute model-specific ceiling before final controller lock. |
| Mechanical stability index | fit: <=3.5 | review: <=5.2 | redesign: >5.2 | Field drift, rework loops, and unplanned maintenance frequency increase. | Improve retention design, tighten runout process control, and validate on representative route vibration. |
| Ambient + long duty stress | review when ambient >=50°C and duty >=18h/day | Retention degradation and long-cycle signal stability issues. | Request supplier thermal endurance evidence or derate mission profile. |
| Cable extension and EMC boundary | review when cable >10 m | redesign/verification gate when cable >30 m without documented EMC compliance path | Edge-shape degradation, residual voltage issues, and field EMC failure risk. | Define output topology early, include cable class in RFQ, and run EMC-oriented validation before deployment approval. |
| Absolute-position architecture boundary | review when power-down position retrieval, shaft movement during power loss, or multi-turn state is required | A wheel that passes mechanical fit can still lose the required position state or need unexpected homing/referencing. | Specify singleturn vs multiturn requirement, power-loss movement assumptions, and controller state handling before RFQ comparison. |
| Protocol/controller compatibility boundary | review whenever SSI, BiSS C, CANopen, SAE J1939, EtherCAT, EtherNet/IP, PROFINET, IO-Link, or parallel output is named | Supplier responses may be mechanically comparable but electrically or diagnostically incompatible with the controller stack. | Lock interface, data update rate, diagnostics, connector/cable, and controller module support as RFQ fields. |
| Functional-safety evidence boundary | mandatory safety review when encoder feedback contributes to safe position, speed, direction, or axis monitoring | Teams can accidentally treat a non-certified absolute encoder wheel as evidence for a safety function. | Require certified safety encoder documentation and route final evidence through ISO 3691-4 system verification. |
Electrical envelope quick map (reference model)
Derived from the formula `RPM = (response frequency * 60) / PPR` using a 125 kHz model-level reference. Use it as a fast screening map, then replace with model-specific limits before release.
| PPR | Max electrical RPM @ 125 kHz | Decision read | Counter-limit | Evidence |
|---|---|---|---|---|
| 1024 | 7324 | Electrical ceiling remains above 5000 RPM model speed example, so mechanical limits may dominate first. | Still not universal: output topology, decode mode, and controller limits can lower practical headroom. | S3, S4 |
| 2048 | 3662 | Electrical ceiling can become the first bottleneck for high-speed duty. | If quadrature decode assumptions change, effective channel load changes as well. | S3, S4 |
| 3600 | 2083 | Mid-high PPR quickly compresses allowable RPM envelope. | Model-specific response frequency and controller decoding architecture still decide final pass/fail. | S3, S4 |
| 5120 | 1465 | High-PPR profiles require early speed derating or architecture change. | Do not copy this envelope to other encoder families without direct vendor evidence. | S3, S4 |
| Cable scenario | Observed boundary | Risk if ignored | Minimum action | Evidence |
|---|---|---|---|---|
| Standard industrial route with cable <=10 m | Generally manageable with clean wiring and grounded routing. | Assuming cable is irrelevant can hide future edge-shape and noise margin erosion. | Record cable class, shielding, and grounding assumptions in RFQ for reproducible build quality. | S5 |
| Extended cable run >10 m | Signal integrity becomes topology-sensitive and should not be treated as nominal wiring. | Missed counts and unstable edge detection may appear only after installation. | Use differential-friendly architecture and add cable-length validation as explicit pilot gate. | S5 |
| EMC-sensitive deployment boundary >30 m | Omron precautions call out 30 m as an EMC-oriented boundary condition. | Pre-compliance surprises can block release even if bench communication appears stable. | Treat >30 m as mandatory EMC verification path with documented mitigation and test records. | S5 |
| Standard | Status / date | Scope boundary | Minimum action | Evidence |
|---|---|---|---|---|
| ISO 3691-4 | Current published edition listed as 2023-06 (Edition 2) | Covers safety requirements and verification for driverless industrial trucks and their systems. | Use this page as pre-screen input only; route final safety evidence through formal system-level verification workflow. | S8 |
| ISO 286-1 / ISO 286-2 | Current editions used here: 2010 references confirmed in 2021 | Defines limits/fits framework and tabulated deviations, but does not validate your field endurance under mission duty. | Map measured lot data to fit classes, then close durability risk with pilot endurance evidence. | S1, S2, S9 |
| IEC 61800-5-2 safety-function context | Referenced through SICK safety encoder materials checked 2026-06-07 | Relevant when encoder feedback supports safe motion functions; not automatically triggered by ordinary wheel speed feedback. | If the wheel encoder participates in a safety function, require safety-rated encoder evidence and system-level validation records. | S13, S8 |
Comparison, risks, and scenario walkthroughs
This section helps teams choose architecture direction and understand failure modes before spending tooling budget.
| Option | Best for | Repeatability | Assembly speed | Cost signal | Main risk |
|---|---|---|---|---|---|
| Clamp hub + line-driver output | General AGV/AMR indoor route feedback | High when fit window and runout are controlled | Medium | Medium | Torque-shock loosening if clamp torque and prep are inconsistent |
| Set-screw hub + single-ended output | Fast prototype loops with short cable runs | Medium | Fast | Low | Localized shaft damage and weaker vibration robustness |
| Keyway + clamp + line-driver output | Higher shock lanes and heavier duty cycles | High | Slow | High | Higher machining and assembly complexity |
| Adhesive bond + single-ended output | Low-speed fixed modules with controlled environment | Low to Medium | Medium | Medium | Serviceability and thermal aging uncertainty |
| Absolute encoder + serial/bus interface | Restart-aware position feedback, controller-native absolute data, or multi-axis diagnostics | Depends on sensor accuracy, mounting, and protocol timing | Slow | High | Controller/protocol mismatch, singleturn vs multiturn confusion, and overclaiming safety without certified evidence |
| Risk | Trigger | Impact | Mitigation |
|---|---|---|---|
| Intent mismatch risk: reading absolute encoder wheel as a full protocol spec | Visitor needs absolute-position protocol selection, but lands on this wheel fit and signal pre-screen page | Medium | State that this is the canonical encoder wheel route for alias coverage, then direct protocol-heavy projects to engineering review. |
| Misuse risk: interpreting nominal 6mm as guaranteed fit | No measured bore/shaft lot data in RFQ package | High | Require lot-based measurement evidence and tolerance callout mapping before PO approval. |
| Signal integrity risk at high frequency | High PPR and RPM paired with long cable and single-ended interface | High | Run frequency budget check and move to line-driver or lower electrical load envelope. |
| Cost risk from repeated rework | Pilot failures discovered after tooling release | Medium | Gate tooling release behind pilot pass criteria on runout, pulse quality, and retention checks. |
| Scenario mismatch risk | Lab validation only on smooth bench conditions | Medium | Include representative route vibration and contamination classes in pilot protocol. |
| Procurement comparability risk | Suppliers use different assumptions for tolerance and signal output | Medium | Standardize RFQ template with required assumptions, units, and evidence attachments. |
| Standard-version drift risk | Project teams reference outdated safety-standard editions in release discussions | Medium | Pin safety discussions to current ISO 3691-4 publication status and keep pre-screen evidence separate from formal verification records. |
| Compliance interpretation risk | Teams treat this page as certification output | High | Use as pre-screen only; final compliance and safety sign-off remains with designated owners. |
| Absolute-state retention risk | Power-down position, shaft movement while off, or multi-turn count is required but not specified | High | Specify singleturn/multiturn behavior, restart assumptions, and controller position-retention handling before supplier selection. |
| Protocol lock-in risk | RFQ names "absolute encoder wheel" but omits SSI/BiSS/CANopen/Ethernet interface and controller module requirements | Medium | Make interface, update rate, diagnostics, cable, connector, and controller compatibility mandatory RFQ fields. |
| Functional safety overclaim risk | A non-safety absolute encoder is used as evidence for safe position, speed, or direction monitoring | High | Require certified safety encoder documentation and keep the wheel checker output separate from SIL/PL evidence. |
Scenario examples (tool replay)
FAQ by decision intent
Grouped for procurement and engineering workflows, not generic glossary filler.
Intent and route scope
Fit mechanics and signal boundaries
Decision workflow, risks, and procurement
Sources and traceability
Time-sensitive entries include explicit checked dates to support repeatable decision review.
| Tag | Title | Publisher | Published / version | Checked | Link |
|---|---|---|---|---|---|
| S1 | ISO 286-1:2010 Geometrical product specifications - basis of tolerances and fits | ISO | Edition 2 (2010-04), confirmed in 2021 | 2026-06-07 | Open |
| S2 | ISO 286-2:2010 tolerance classes and limit deviations for holes and shafts | ISO | Edition 2 (2010-06), confirmed in 2021 | 2026-06-07 | Open |
| S3 | Resolution, Accuracy, and Precision of Encoders (white paper) | US Digital | Technical white paper page (web) | 2026-06-07 | Open |
| S4 | E6C3-C family specification page (incremental rotary encoder) | Omron Industrial Automation | Page states model-level frequency/speed/protection parameters; page shows 2016-02-09 update | 2026-06-07 | Open |
| S5 | Precautions for Correct Use of Rotary Encoder | Omron Industrial Automation | Engineering precautions page (cable extension and EMC-oriented usage notes) | 2026-06-07 | Open |
| S6 | AMT10 / AMT10E Incremental Encoder Kits product highlight | DigiKey + Same Sky Devices | Distributor highlight page published 2021-11-30 (includes 2 mm to 8 mm adapters and PPR family range) | 2026-06-07 | Open |
| S7 | AMT-6MM adapter sleeve product page | DigiKey + Same Sky Devices | SKU page labels AMT-6MM as red 6 mm sleeve accessory for AMT family | 2026-06-07 | Open |
| S8 | ISO 3691-4:2023 Driverless industrial trucks and their systems | ISO | Edition 2 (2023-06), safety requirements and verification | 2026-06-07 | Open |
| S9 | Stage1b open-data audit note for 6mm bore endurance corpus | AGV Drive Wheel research note | Audit checkpoint: 2026-06-07 (pending confirmation / 暂无可靠公开数据) | 2026-06-07 | Open |
| S10 | Absolute Encoders: single-turn, multi-turn, and interface options | Encoder Products Company | Web product overview; includes 2025-12-31 limited-support notice for Model 925/960 | 2026-06-07 | Open |
| S11 | Absolute encoders in a nutshell | ifm | Technology note describing absolute numerical values, singleturn, and multiturn scope | 2026-06-07 | Open |
| S12 | BiSS C protocol support for absolute encoders | Renishaw / BiSS Interface | BiSS C protocol document listed 2024-07; Renishaw support page checked 2026-06-07 | 2026-06-07 | Open |
| S13 | AFS/AFM60S Pro safety encoder family | SICK | Absolute encoder for functional safety, certified up to SIL 3 / PL e | 2026-06-07 | Open |
Reliability boundary: public cross-vendor endurance evidence for identical 6mm bore fit duty profiles is still incomplete as of 2026-06-07. Use this page to prioritize decisions, then close gaps with pilot and supplier test evidence. Safety conformance still follows the formal ISO 3691-4 system verification path.
Stage1c review self-heal gate
Review result after self-heal pass: blocker and high severity items are cleared before SEO/GEO handoff.
Blocker
0
High
0
Medium
2
Low
3
Fixed in this pass
Tool-first viewport, deterministic result interpretation, alias wording, and source date markers are explicit.
Deferred (non-blocking)
Additional vendor-specific endurance datasets can be added later when open evidence quality improves.
Related engineering resources
Continue with adjacent drivetrain checks, source-boundary review, and direct RFQ actions.
