SKF RM30 Imperial Bearing 3-3/4″ ID 12:1 Tapered Bore x 8-1/4″ OD x 1-3/4″
SKF Self Aligning Ball Bearing 3-3/4″ ID to 4″ ID Nominal Tapered Bore (1:12) x 8-1/4″ OD. Type: Self-aligning double row ball bearing tapered bore. Bore: 3.75″ nominal (tapered 1:12, 4″ at the mouth).