the stock NTN front bearing is good for the front,,
EDITED) to add, some 5 years ago I replaced my Hyper 50 bearings, I bought an SKF AND a NTN rear bearings, I found the SKF rear bearing to be smoother!!!!!, but I used a NTN on the front, I have never heard any one saying they had a problem with their NTN front bearing, I flew the OS 50 Heli engines for 16 years, I too never had a problem with the NTN front bearings,, I say just use the stock NTN on the front
Jim,
Last edited by the Wasp; 10-14-2019 at 10:46 AM.