An 8″ heavy duty swivel caster pairing a round tread TPU wheel with a premium zinc non heat treated yoke on a 4″ x 4-1/2″ top plate. It carries 1,500 lb, stands 9-1/2″ tall, and turns on a 1/2″ steel dual precision bearing, operating from -30°F to 140°F.
| Product Series | |
|---|---|
| Series Type | Heavy Duty |
| Caster Type | |
| Wheel Part No | W850820URC |
| Wheel Diameter | |
| Wheel Tread Width | |
| Wheel Profile | |
| Wheel Tread Material | TPU |
| Wheel Core Material | Aluminum |
| Wheel Durometer | |
| Wheel Color | |
| Bearing Type | |
| Bearing Material | |
| Bearing Size | |
| Axle Size | |
| Load Capacity | |
| Operating Temp | |
| Overall Height | |
| Caster Finish | |
| Threadguard | |
| Attachment Method | |
| Mount Size | 4" x 4 1/2" |
| Warranty Duration | |
| Conductivity | Antistatic |
Where it fits. Thermoplastic polyurethane is the general-purpose upgrade tread. It is non-marking, resists oils and most mild chemicals, and carries more load than rubber at the same diameter without the noise of a hard tread. TPU holds its shape under sustained static load, so carts parked loaded overnight are less prone to flat spots. This swivel model rotates a full 360 degrees and is normally specified two per cart with two rigid casters at the opposite end, or four per cart where the equipment has to move sideways in tight aisles.
Construction. The yoke is formed from premium zinc-plated steel for corrosion resistance. It mounts on a 4″ x 4-1/2″ top plate. A 1/2″ steel dual precision bearing rides on a 1/2″ axle for smooth, low-effort rolling.
Load and duty. The 1,500 lb rating is per caster. Standard practice is to size a four-caster set assuming three casters carry the load, so this model supports roughly a 4,500 lb cart with margin for shock loading and uneven floors. Continuous operating range is -30°F to 140°F.
About Series 50. Series 50 is our heavy duty line, designed for challenging environments and loads up to 5,000 lb. These casters are engineered for towing operations, high shock and impact loads, maximum capacity at minimal mount height, and high capacity combined with floor protection.
