How 'bout some more info? I just found their website. Their "street max" T.O. has very VERY little info including what they fit!! Google the part no, Jegs, Summit does NOT come up!!
PowerTrain Technology Products
PTT Street-MAX Hydraulic Release Bearing for Street Stock Clutches
https://www.powertraintech.com/Files/PDFs/HRB's.pdf
RS7201 is the "street max"