1780/1730 Tapered Roller Bearing 0.980" x 2.243" x 0.785"1780 1730 Tapered Roller Bearing 0. 980 inch x 2. 243 inch x 0. 785 inch 1780 1730 Tapered Roller Bearing 0. 980 inch x 2. 243 inch x 0. 785 inch One Set (Cone+cup) 1780 1730 Single row, Tapereded roller wheel bearing. This bearing is designed to carry radial and axial loads simultaneously in one direction (cone & cup). Manufactured from chrome steel, this bearing has an inner diameter of 0. 980 inch, outer diameter is 2. 243 inch and width is 0. 785