Product Overview The Wincor Nixdorf V2CU Card Reader Roller 1770031909 / 01770031909 is a replacement roller for the Wincor Nixdorf V2CU Card Reader, part number 01750173205. This component is used in the card reader's card transport mechanism, helping guide and move cards through the reader during card insertion and processing. A worn or damaged roller may affect card transportation and contribute to card feeding problems. Replacing the relevant roller during routine