I can always trust SweepScrub to have the part I need at a great price.
Drive Hub - 9.5 x 1.25 in. (Fits Tennant: 5200; Nobles Speed Scrub 2001, WB-20E, WB-20, 5500, 5520, 5540, 5560, BA-2000, FS-2000, Speed Scrub 2001HD, Speed Scrub 2401, Speed Scrub 2601, Speed Scrub 2701, 3301 (replaces 230672)
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