Johnson/Evinrude Roller and Sleeve p/n 397499

prusaprinters

<p>I did not want to spend $27 for a tiny roller so I took measurements with a caliper and duplicated the part. The only difference is that this is not two pieces with a clear roller over an inner ring, it is a single part. Functionally it works identically.&nbsp;</p><p>Print in PETG for chemical resistance, and use 100% infill. PLA is <strong>not </strong>fuel/oil resistant.&nbsp;</p><p>I printed with .07mm layer height to ensure the smoothest possible surface and still sanded slightly when it was done, particularly over the start/end seams.&nbsp;</p><p>Fit on the shaft is nearly identical to the OEM part. A drop of light machine oil and it glides extremely smoothly.&nbsp;</p>