Product #

WZ1-30UA
WZ1-30UA-TLK
WZ1-30UB
WZ1-30UC

WZ1-42UC

WZ1-49UC

Outside Dimensions*

With tire pressure 2.5 psi at
sea level and at a
temp range of
75-80°F
(24-26.5°C)

11.8x7"
(30x18 cm)

16.5x7.9"
(42x20 cm)

19.3x9"
(49x23 cm)

Width at
Bushing/Bearing

7.3"
(18.5 cm)

7.8"
(19.8 cm)

7.8"
(19.8 cm)

Bushing
Diameter

PU Wheel Bushings/Bearings are interchangeable.

WZ1-30UA
1/2" bushing

WZ1-30UA-TLK
1/2" bushing with Twist Lock Knob

WZ1-30UB
3/4" bearing

WZ1-30UC
1"bearing

1" bearing
(25 mm)

1" bearing
(25 mm)

Tire Material

Polyurethane

Polyurethane

Polyurethane

Hub Color/Hub Material

Gray/Polypropylene

Gray/Polypropylene

Gray/Polypropylene

Max. Payload/Wheel

121 lbs
(55 kg)

176 lbs
(80 kg)

264 lbs
(120 kg)

Pressure Range

Low Pressure
2–4 psi
(0.14-0.28 bar)

Low Pressure
2–4 psi
(0.14-0.28 bar)

Low Pressure
2–4 psi
(0.14-0.28 bar)

Ideal & Ship Pressure

2.5 psi
(0.17 bar)

2.5 psi
(0.17 bar)

2.5 psi
(0.17 bar)

Temperature Range

5 to 167 F
(-15 to 75 C)

5 to 167 F
(-15 to 75 C)

5 to 167 F
(-15 to 75 C)

Wheel Weight

2.91 lbs
(1.32 kg)

5.5 lbs
(2.5 kg)

6.1 lbs
(2.78 kg)