PU office chair caster wheels brake with pin

PU office chair caster wheels brake with pin
Bracket Material:Iron
Wheels Material: PU
Bearing: ball

Model                        Wheel size       Load height    Thread size   Capacity
TCO-30031B-P      D50 x W24mm        65mm          11 x 22mm      40KG
TCO-30032B-P      D63 x W24mm        82mm          11 x 22mm      55KG
TCO-30033B-P      D75 x W24mm        95mm          11 x 22mm      70KG