Genie 080837.0272.S is a Genie OEM replacement ansi #41 roller chain - open-ended strand (ANSI #41 Open-Ended Roller Chain Strand, 27 Pitches). This variant has the following dimensions: Pitch: 0.500 in - Pitch count: 27P - Total length: 13.5 in (27 x 0.500 in) - Roller dia: 0.306 in - Roller width: 0.306 in - Pin dia: 0.141 in - Plate height: 0.475 in. Construction: Carbon steel roller chain construction with standard finish; inner and outer link plates, hardened rollers, and case-hardened pins per ANSI #41 chain specification. For use with Genie commercial chain-drive door operators requiring ANSI #41 roller chain and Genie GCO series commercial door operators. Selecting the correct chain ANSI size, pitch count, and configuration (open-ended vs. loop) is critical for proper installation and operator function.
| Feature | Specification |
|---|---|
| Model | Genie 080837.0272.S |
| Item Type | ANSI #41 Roller Chain - Open-Ended Strand |
| Materials | Carbon steel roller chain construction with standard finish; inner and outer link plates, hardened rollers, and case-hardened pins per ANSI #41 chain specification |
| Dimensions | Pitch: 0.500 in - Pitch count: 27P - Total length: 13.5 in (27 x 0.500 in) - Roller dia: 0.306 in - Roller width: 0.306 in - Pin dia: 0.141 in - Plate height: 0.475 in |
| Mounting | Installed as an open-ended drive chain segment in Genie commercial door operators; connected via a master link or connecting link; sprocket engagement at operator drive sprocket and door trolley or jackshaft sprocket |
A: This chain is an open-ended strand, meaning it has two free ends and is not formed into a closed loop. It is designed to be installed as a drive chain segment in Genie commercial door operators and is connected using a master link or connecting link at the operator.
A: ANSI #41 roller chain has a pitch of 0.500 in. With 27 pitches, the total length of this strand is 27 x 0.500 in = 13.5 in. This is a short drive segment intended for specific Genie operator configurations.
A: ANSI #41 chain has a 0.500 in pitch, a 0.306 in roller diameter, and a 0.306 in roller width. It is a light-duty industrial chain, lighter than #50 (0.625 in pitch) but heavier than #35 (0.375 in pitch), with a tensile strength in the range of approximately 2,320 to 2,700 lbf.
A: The 080837 series from Genie uses the last digit of the suffix to indicate chain size: a suffix ending in 2 denotes ANSI #41 chain, and a suffix ending in 4 denotes ANSI #50 chain. The middle digits of the suffix encode the pitch count. For this part, 0272 indicates 27 pitches of #41 chain.
A: If your Genie operator requires a longer #41 chain strand, other variants in the 080837 series include 080837.0292.S (#41 x 29P, 14.5 in), 080837.0572.S (#41 x 57P, 28.5 in), and 080837.1092.S (#41 x 109P, 54.5 in). For #50 chain requirements, see the 080837 suffix-4 variants.