Specifications: Type: #84 Capacity: 1,750 lb Style: Round Trailer Spindle A= Shaft Diameter: 1.75 in B= Shank Length: 3.5 in C= Overall Length: 8.25 in Inner Bearing: 1.375 in Outer Bearing: 1.063 in Seal Area: 1.72 in Additional Information: Spindle Assembly includes the spindle, castle nut, washer, and cotter pin. Most Sizes are available with Posi Lube ( EZ Lube ).