ProTek R/C 8x14x4mm Rubber Sealed Flanged "Speed" Ball Bearings (4)
[PTK-MF148-2RS]

ProTek R/C 8x14x4mm Rubber Sealed Flanged "Speed" Ball Bearings (4)
wade toombs - Rating: 1 of 5 Stars! Verified Owner Sunday, August 26, 2012
I also have these and did not last not 3 tanks. Came apart