The Genie 086563.0005.S is an OEM Genie replacement replacement sprocket. 18-tooth #25 chain 1/4 inch pitch variable-bore OEM replacement sprocket for Genie openers. Construction: Steel or sintered iron per #25 chain (1/4 inch pitch) sprocket standard. Key dimensions: Pitch diameter approx 1.43 in (18T at 1/4 in pitch); bore dimension variable - consult Genie documentation for specific shaft fit. Order by Genie part number 086563.0005.S for exact OEM fitment.
A: The 'X B' notation in the title suggests a variable or unspecified bore dimension. Contact Genie or consult model-specific documentation to confirm the correct bore size before ordering.
A: 18 teeth on a 1/4 inch pitch sprocket yields a pitch diameter of approximately 1.43 inches, making it larger than the 14-tooth variant in the same 086563 family and suitable for a driven or intermediate role.
A: This is part of the Genie 086563 sprocket family, which also includes the 086563.0001.S (14-tooth, 1/2 in bore). Both use #25 chain with 1/4 inch pitch but differ in tooth count and bore.
A: #25 chain with 1/4 inch pitch is appropriate for lighter-duty or secondary drive functions within a Genie opener, such as auxiliary drives or lower-load trolley systems.
A: Yes, as always when replacing a drive sprocket, inspect and replace the mating #25 chain and check the opposing sprocket for wear to ensure the drive system performs correctly.
