A wheel hub with two different Timken TS series tapered roller bearings in arranged in a direct mount rotates on an axle as shown. The wheel rotates at 3200 rpm. The shaft carries an external transverse force of 1200 lb and an external axial force of 800 lb. 20'in 0.75 in F Bearing A Answers (a) Cone PN, A Cup PN, A Cone PN, B Cup PN, B 6 in (b) EBS (in) (c) Fra (lb) FrB (lb) (d) Pr (N) PTB (N) (e) LA (E6 rev) LB (E6 rev) (f) LA (hours) LB (hours) 1200 lb 800 lb ++ (a) What are the cone and cup part numbers for the two bearings? (b) What is the effective bearing spread, EBS, (mm) for this shaft? (c) Use the EBS to determine the radial reactions on the bearings. (d) Determine the equivalent radial load on the bearings. (e) What is the life in revolutions that can be expected for the bearings? (f) What is the life in hours that can be expected for the bearings? A reliability of 95.5% is required. Light impact is expected (use the middle of recommended range for the load application factor). The bearings are lubricated with clean grease (use an appropriate life modification factor). 8 in -EBS 2.0 in Fe Bearing B 0.9375 in