4-1/2" x 4" Top Plate
660 lbs Load Capacity

3-7/16" Hollow Kingpin
660 lbs Load Capacity

3/4" Precision Ball Bearing
3500 lbs Load Capacity @ 3 mph

1-7/16" Plain Bore Bearing

570 lbs Load Capacity @ 3 mph

1-3/16" Plain Bore Bearing

570 lbs Load Capacity @ 3 mph

1-15/16" Plain Bore Bearing

670 lbs Load Capacity @ 3 mph

1-7/16" Plain Bore Bearing

500 lbs Load Capacity @ 3 mph

1-3/16" Plain Bore Bearing

500 lbs Load Capacity @ 3 mph

1-1/4" Tapered Roller Bearing

900 lbs Load Capacity @ 3 mph

1" Tapered Roller Bearing

900 lbs Load Capacity @ 3 mph

3/4" Tapered Roller Bearing

900 lbs Load Capacity @ 3 mph

1" Tapered Roller Bearing

670 lbs Load Capacity @ 3 mph

3/4" Tapered Roller Bearing

670 lbs Load Capacity @ 3 mph

1" Straight Roller Bearing

410 lbs Load Capacity @ 3 mph

7/8" Straight Roller Bearing

410 lbs Load Capacity @ 3 mph

3/4" Straight Roller Bearing

410 lbs Load Capacity @ 3 mph

3/4" Straight Roller Bearing

410 lbs Load Capacity @ 3 mph

5/8" Straight Roller Bearing

410 lbs Load Capacity @ 3 mph

1/2" Straight Roller Bearing

410 lbs Load Capacity @ 3 mph