Home › Forum › Ask A Member › Mercury KF7 Super 10 Bearing Question – UPDATED!! › Re: Mercury KF7 Super 10 Bearing Question
March 23, 2015 at 3:05 pm
#12608
Not a case of Japanese junk. The X following the number on Torrington’s early bearings denoted what later became G prefix units. They are precision ground drawn cup units. Order KOYO GB-912 AND DON’T BE SURPRISED BY THE PRICE. The price could be up to 10 times the price of the B versions. The ones that require it, will be labeled OH signifying Oil Hole. Example would be GB-98-OH. The GB prefix units are several thousandths smaller in diameter than the B prefix versions. R.T.