A 21-tooth pinion rotating at 1800 rpm meshes with a 33-tooth gear in a spur gear reducer. Both pinion and gear are manufactured to a quality level of 9. A reliability of 0.9 has been specified, and the transmitted tangential load is 2800 lb. Conditions are such that K_m = 1.7. It is proposed that standard 25°, full-depth teeth be used, with both pinion and gear hobbed from an AISI 4140 nitrided steel. The diametral pitch is 6, and the face width 2.000 in. Estimate the number of cycles of bending stress (using the AGMA equations) that the gearset can withstand.