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Research Sources and Evidence Boundary

Product facts come first from the uploaded catalogue. Connected Drive searches found other coupling categories but no directly matching NM technical source, so they were not used for ratings. Current web sources inform terminology and market context only.

User evidence firstCompetitor data not substitutedAccessed 2026-08-03
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Orange NM flexible rubber coupling hubs and black flexible ring
Supplied product photograph; bore and keyway are configured by quotation.
VISIBLE SOURCES

Consulted evidence and context

  1. SRC-01 — EVER-POWER GROUP CO., LTD.: NM50-NM214 dimensions, nominal torque, speed, displacement and NBR design. Primary product source; one catalogue page labeled 80.
  2. SRC-02 — User-supplied product photographs: product appearance, four-lobe flexible ring and visible bore/keyway examples. Photographs do not prove hidden material grades, tolerances or certifications.
  3. DRV-01 — Connected Google Drive: Search for company materials. No directly matching NM technical catalogue found; liquid, quick and gear couplings excluded from product facts.
  4. WEB-01 — Finer Power Transmissions: NM terminology and comparison fields. Different ratings from supplied catalogue; never used as EVER-POWER specification.
  5. WEB-02 — Lovejoy / Timken: jaw-coupling taxonomy, applications and element terminology. Competitor product data not copied into EVER-POWER ratings.
  6. WEB-03 — Lovejoy / Timken: coupling comparison dimensions and selection criteria. General selection context only.
  7. WEB-04 — KTR Systems: T-PUR colour and hardness system requested by user. Shows 92A/98A/64D belongs to KTR T-PUR system; not proof of NM standard option.
  8. WEB-05 — Hydraulic Institute: pump coupling selection, installation and maintenance context. General guidance; project manuals govern.
  9. WEB-06 — Indian Pump Manufacturers Association press coverage: India pump, agriculture and water context. Market context only; no product claims.
  10. WEB-07 — Japan Society of Industrial Machinery Manufacturers: Japan industrial machinery context. Current market context only.
  11. WEB-08 — Korea Association of Machinery Industry: South Korea machinery context. Current market context only.
  12. WEB-09 — Association of Equipment Manufacturers: North American equipment manufacturing context. Regional context; no local-presence claim.
  13. WEB-10 — Industria Nacional de Autopartes: Mexico manufacturing and OEM context. Industry context only.
  14. WEB-11 — VDMA: Germany fluid-power and mechanical-engineering context. Industry context only.
  15. WEB-12 — British Pump Manufacturers Association: UK pump-industry context. Industry context only.
  16. WEB-13 — EVOLIS: France pump and fluid-equipment context. Industry context only.
  17. WEB-14 — FEDERMACCHINE: Italy capital-goods and packaging machinery context. Industry context only.
  18. WEB-15 — Fluidex: Spain pump and valve market context. Industry context only.
  19. WEB-16 — ABIMAQ / INFORMAQ: Brazil machinery market context. Industry context only.
  20. WEB-17 — CAFMA: Argentina agricultural machinery context. Industry context only.
  21. WEB-18 — Federation des Industries Mecaniques: France mechanical-industry outlook. Industry context only.
  22. WEB-19 — ISO sample via iTeh: flexible coupling terminology and evidence boundary. Special-purpose standard context; no claim that NM range complies.