# How to Specify DAC30620037 Without Mixing Nearby Parts
Look-alike part numbers are the usual way a stores ticket goes wrong on a industrial-grade hub bearing for small vehicles. Do not substitute DAC30600037 (30×60×37), which is a different outer diameter. A 2 mm change in OD (60 vs 62) is enough to mis-seat the cartridge. Confirm 30×62×37 mm on the product page and the housing.
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The envelope to write on the ticket is 30 × 62 × 37 mm (confirm on the listing; the DAC code encodes this envelope). That geometry belongs to DAC30620037, an industrial-grade hub bearing for small vehicles. Measure the removed part or the housing before you trust a faded stamp.
Review DAC30620037 bearing on the TFL Bearing Made-in-China listing. Shandong TFL Bearing Co., Ltd can confirm stock, packing, and any OEM marking once the drawing or sample is attached.