Dutton-Lainson Dutton Lainson 6500 Series Trailer Wheel Bearing Set 1.0625in x 0.75" Spindle. Trailer Wheel Bearing Set 21811 (Model 6505) features a 1.25" x 0.75" spindle (outer diameter). The inner diameter of the outer hub is 1.781". Compatible with outer bearing cone number LM11949 and inner bearing cone number L44649. Compatible with outer cup number LM11910 and inner cup number L44610. Features of Dutton-Lainson 21811 Dutton Lainson 6500 Series Trailer Wheel Bearing Set 1.0625in x 0.75" Spindle 6500 series wheel bearings Includes 2 bearings with races 1 grease seal and 1 cotter pin Outer Diameter of Spindle: 1.25" x 0.75" Inner Diameter of Outer Hub: 1.781" Compatible with outer bearing cone number LM11949 and inner bearing cone number L44649; Compatible with outer cup number LM11910 and inner cup number L44610 Package Contents: Dutton-Lainson 21811 Dutton Lainson 6500 Series Trailer Wheel Bearing Set 1.0625in x 0.75" Spindle Dutton-Lainson 21811: Dutton Lainson 6500 Series Trailer Wheel Bearing Set 1.0625in x 0.75" Spindle