b'GM F/X TRACK-STARTrack-Pro Spindles & Track-Pro Hub Bearing Assemblies: oStrong & Lightweight T1 Steel UprightoCustom Design Hub Utilizing Tapered Roller Bearings = 50%STRONGER Than Any C6/C7 Hub / Rated at 2275# & 2275#o5 x 4.75 Wheel Pattern with ARP 14mm, 3.20 Long WheelStuds Included, but Not Installed + ARP Hub BoltsoThe Narrowest Spindle & Hub Package on the Market oLower Scrub Radius & More Room for Big Brakes oWilwood 13 & 14 & StopTech 14 Brakes Available for this SpindleTech Tip 43: Bearing thrust load capacity, for hard cornering, is defined by several factors. The number of bearings in the unit, size of the bearings, angle of the bearings the race, materials used & contact surface area of the ball or roller bearings to the race.Todays hub bearing assemblies utilize angular contact ball bearing design, which loads the balls at an angle (similar to tapered roller bearings), increasing thrust load capacity over inline ball bearings. These offer lower friction & better fuel mileage than tapered roller bearings.But, they are not as capable of handing high G corner thrust loads we see with top level, high powered, big tired, race cars today. Hub bearing assemblies that utilize tapered roller bearings (like the hubs above) can be over 50% stronger than angular contact ball bearing hub assemblies, due to increased contact area of the roller bearing compared to the ball bearing.937'