ANSI #41 carbon steel roller chain loop, 60 pitches, continuous loop configuration, for Genie commercial door operators. This is a genuine Genie OEM replacement part designated Genie 111584.0060.S, classified as Roller Chain Loop. Material: Carbon steel. Dimensions: 60 pitches x 0.500 in pitch = 30.000 in loop length; roller dia 0.306 in; inner width 0.250 in. Mounting: Closed loop over operator drive sprocket and driven sprocket; master link provided for installation.
A: ANSI #41 specifies a 0.500 in (1/2 in) pitch, 0.306 in roller diameter, and 0.250 in inner width per ANSI B29.1.
A: 60 pitches at 0.500 in each gives a total loop circumference of 30.000 in. This closed loop is joined with a master link.
A: 'Loop' means the chain is supplied as a continuous closed loop via a master link, ready for installation directly over the operator drive and driven sprockets without field cutting or joining.
A: For open-ended linear applications, refer to 111584.3059.S (59-pitch no-loop). The loop variant is for continuous-loop sprocket drive systems.
A: ANSI #41 chain is lighter and narrower than #40 chain and not interchangeable. Always confirm the operator's sprocket is rated for #41 chain before installation.
