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Equipment reference / Denco operator sprocket labels and bores

Denco operator sprocket labels and bores

Compare exact supplier numbers, stated bores, explicitly documented tooth counts and keyways without decoding missing specifications.

US source scopeReference updated 2026-09-13

Identification details & limits

Reference identifier: Denco operator sprocket labels and bores. Compare each listed detail with the exact product and the source document. Do not submit a personal serial number or access code to this website.

Identification and scope details from the cited sources; each row retains its source locator.
Exact supplier identifierCOA 50B40-1-1/4
COA 50B40-1-1/4The title labels the sprocket 50B40 and states a 1 1/4-inch bore.
COA 50B40-1-1/4The description specifies #50 chain and 40 teeth.
Exact supplier identifierCOA 50B40
COA 50B40The title labels the sprocket 50B40 and states a 1-inch bore.
COA 50B40The description specifies #50 chain and 40 teeth.
Exact supplier identifierCOA 50B301-1/4
COA 50B301-1/4The title labels the sprocket 50B30 and states a 1 1/4-inch bore.
Exact supplier identifierCOA 50BS30HT1
COA 50BS30HT1The title labels the sprocket 50B30 and states a 1-inch bore.
COA 50BS30HT1The description specifies #50 chain and 30 teeth.
Exact supplier identifierCOA 50BS24HT
COA 50BS24HTThe title labels the sprocket 50B24 and states a 1 1/4-inch bore.
Exact supplier identifierCOA 105270
COA 105270The title labels the sprocket 50B24 and states a 1-inch bore.
COA 105270The description specifies #50 chain and 24 teeth.
COA 105270The description also gives a 1/4-inch keyway.
Exact supplier identifierCOA 50B18-1B
COA 50B18-1BThe title labels the sprocket 50B18 and states a 1-inch bore.
COA 50B18-1BThe description specifies #50 chain and 18 teeth.
COA 50B18-1BThe description also gives a 1/4-inch keyway.
Exact supplier identifierCOA 50B12
COA 50B12The title labels this sprocket 50B12 and gives a 1-inch bore.
COA 50B12The description states #50 chain, 12 teeth and a 1/4-inch keyway.
Exact supplier identifierCOA 41B36-1-1/4
COA 41B36-1-1/4The title labels this sprocket 41B36 and gives a 1 1/4-inch bore.
COA 41B36-1-1/4The description states #41 chain, 36 teeth and a 1/4-inch keyway.
Exact supplier identifierCOA 41B36
COA 41B36The title labels this sprocket 41B36 and gives a 1-inch bore.
COA 41B36The description states #41 chain, 36 teeth and a 1/4-inch keyway.
Exact supplier identifierCOA 100160
COA 100160The title labels this sprocket 41B30 and gives a 1-inch bore.
COA 100160The description states #41 chain, 30 teeth and a 1/4-inch keyway.
Exact supplier identifierCOA 41B24
COA 41B24The title labels this sprocket 41B24 and gives a 1-inch bore.
COA 41B24The description states #41 chain, 24 teeth and a 1/4-inch keyway.
Exact supplier identifierCOA 41B18
COA 41B18The title identifies a 41B18 sprocket with a 1-inch bore.
COA 41B18The description states #41 chain, 18 teeth and a 1/4-inch keyway.
Source scope and missing specificationsThe manufacturer field is N. The supplier SKU remains separate from the title designation. No named opener model, working load or chain pitch is established.
Source scope and missing specificationsNo separate description supplies chain size or tooth count; those values are not decoded from the title designation.
Source scope and missing specificationsThe manufacturer field is N. No named opener model, chain pitch or rated load is specified. Preserve the exact supplier SKU separately from the sprocket label.
Source scope and missing specificationsThe description misspells bore as boer; the title independently states the 1-inch bore.
Source scope and missing specificationsThe manufacturer field is N. No chain pitch, rated load or named opener fitment is given; preserve the supplier SKU separately from the sprocket label.

Sources & review dates

  1. Denco operator source: COA 50B40-1-1/4Denco · US · checked 2026-09-13
  2. Denco operator source: COA 50B40Denco · US · checked 2026-09-13
  3. Denco operator source: COA 50B301-1/4Denco · US · checked 2026-09-13
  4. Denco operator source: COA 50BS30HT1Denco · US · checked 2026-09-13
  5. Denco operator source: COA 50BS24HTDenco · US · checked 2026-09-13
  6. Denco operator source: COA 105270Denco · US · checked 2026-09-13
  7. Denco operator source: COA 50B18-1BDenco · US · checked 2026-09-13
  8. Denco operator source: COA 50B12Denco · US · checked 2026-09-13
  9. Denco operator source: COA 41B36-1-1/4Denco · US · checked 2026-09-13
  10. Denco operator source: COA 41B36Denco · US · checked 2026-09-13
  11. Denco operator source: COA 100160Denco · US · checked 2026-09-13
  12. Denco operator source: COA 41B24Denco · US · checked 2026-09-13
  13. Denco operator source: COA 41B18Denco · US · checked 2026-09-13

This independent reference preserves the source’s stated scope. It does not report an Anderson installation inspection, product test or safety clearance.

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The cited sources define the product details shown here; comparison does not establish fitment. Anderson’s repair service covers its listed Connecticut communities; this national reference does not imply nationwide service.

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