CBT-1 1/2 CS Flange Ball Transfer 1-1/2 Main Ball Mounted BearingCBT 1 1 2 CS Flange Mounted Ball Transfer Unit 1 1 2" Main Ball Proudly made in the USA CBT 1 1 2 CS Flange Mounted Ball Transfer Unit, Main Ball is 1 1 2" Inch, 1 1 2" Main ball rotates on (90) 3 16" support balls, CBT 1 1 2 CS is flange mounted ball transfer is a heavy duty ball transfer unit, capable of supporting as many as 250 pounds (per unit). CBT 1 1 2 CS Bearing Ball Transfer unit Ball Material: Stainless Housing Material: Carbon Steel Load