2,000 lbs Trailer Axle Spindle with 4-4" Bolt Circle Hub 1 1/4" Diameter, 4" long shaft, BT8 1" spindle. Spindle includes spindle nut, spindle washer, and cotter pin. 4-4" BT8 hub pre raced and studded. Hub includes inner and outer bearing L44643, seal, grease cap, and lug nuts. Rated at 1000 lbs. per spindle, two will hold 2,000 lbs.