Selden 60mm cheek, roller bearing block 3300 lbs 406-201-07r

12mm-7/16" line max, 3300 lbs load, 6600 lbs break, aluminum annodized sheave with torlon roller bearings and acetal ball bearings for side loads, machined annodized aluminum cheeks. All stainless parts are isolated from the aluminum to prevent corrosion. 3- M6 bolts required