This upper arm (Polar equivalent 230043, 230043a, 246050a) is part of the pull arm assembly (sometimes called a draw arm). It fits the newer models of Polar 115 and Polar 137 paper cutters (115 EMC MON, 115 EMC II, 115 S, 115 E, 115 ED, 115 X, and 115 XT, 137 EMC MON, 137 EMC II, 137 S, 137 E, 137 ED, 137 X, and 137 XT). After approximately 1984, the pull arms changed to this style of single shear bolt pull arms. This is a completely new, non-OEM, aftermarket part. The overall length measures approximately 11-1/2" and it has a LEFT Hand M24 thread. It is machined complete from SAE 1045 steel.
This is supplied as shown in the photo, complete with a new needle bearing installed. (207461, 207461a) A new steel dowel pin (Polar part number 200817a), for the end of travel limit, is also supplied loose.