Timken 25577 (Ford 8M-4221) Tapered Bearing Cone. Bearing is Single Cone; 1.6880" Straight Bore; 1" Wide; 0.140" Maximum Shaft Fillet Radius; Standard Tolerance. This sale is for one bearing. BRAN:TIMKEN MADE USA Package Includes : One (1) Timken 25577 Tapered Bearing Cone