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The Nortek 2110-066 is a 41-B-21 sprocket assembly built with a 5/8in ID bearing, identified by manufacturer part number 2110-066. This is a component-level replacement part used in gate operator and access control drive systems that rely on Nortek's 41-chain sprocket hardware.
Manufacturer-published specifications for the 2110-066 (materials, chain pitch tolerances, load ratings, shaft compatibility) are not available in current evidence, so this listing is intentionally kept narrow rather than filled in with assumed values. What is confirmed is the part identity: a 41-B-21 sprocket assembly with a 5/8in bore bearing, sold under MPN 2110-066 (occasionally searched as 2110 066).
This part is currently flagged end-of-life (EOL) in distribution records. Stock may be limited to remaining channel inventory, and lead times or substitutions may apply. If you're sourcing 2110-066 for a repair, confirm current stock status and whether a superseding part number has been issued before finalizing a replacement plan.
Q: Is the Nortek 2110-066 still in production?
A: No — this part is flagged end-of-life in current distribution data. Availability is limited to remaining inventory.
Q: What bearing size does the 2110-066 use?
A: It uses a 5/8in ID bearing as part of the 41-B-21 sprocket assembly.
Q: Will the 2110-066 fit any 41-chain gate operator?
A: Shaft and chain compatibility should be confirmed against your specific Nortek operator model before ordering, since detailed fitment specifications are not published here.
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