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Hi Anselm, The green material in those pinch rollers is (I think) polurethane and it eventually goes the way that yours have. There's no alternative but to replace or have someone like Terry's rebuild using your roller's metal hubs and bearings. One of the problems with replacement pinch rollers these days is manufacturers getting the hardness of the roller's original rubber right. Ideally the hardness should be as per the manufacturers' original specification for that machine/model, but after all this time it may not be so easy to determine that figure, as original samples will have long ago perished in one way or another. After fitting the new/remanufactured pinch roller to the machine, and cleaning and lubing the bearing as needed, it's advised to readjust pinch roller pressure according to the relevent service manual. Tim. ----- Original Message ----- From: "Huelsbergen, Anselm M" <[log in to unmask]> To: <[log in to unmask]> Sent: Saturday, May 25, 2019 12:00 AM Subject: [ARSCLIST] pinch rollers for Studer B67? The pinch rollers on our two Studer B67 machines are disintegrating and I would appreciate suggestions on where to get replacements. I'm putting up a couple of photos of the state of our current rollers in case anyone wants to take a look and tell me what is going on. The machines are not used frequently (once every six months) and playing a tape the other day seems to have started the breakdown or at least made it very evident. The tape plays without incident on a Sony-O-Matic machine (APH version). https://muarchives.missouri.edu/Temp_Pages/b67/b67_pinch_roller_1_20190523.jpg https://muarchives.missouri.edu/Temp_Pages/b67/b67_pinch_roller_2_20190523.jpg Thanks in advance. anselm Anselm Huelsbergen, CA Technical Services Archivist & Interim University Archivist University Archives University of Missouri-Columbia 726 Lewis Hall Columbia, Missouri 65211-4320 Phone: (573) 882-2839 Fax: (573) 884-0027 Web: muarchives.missouri.edu/ Email: [log in to unmask] --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus