Zinc plated double ball bearing light-medium duty caster. This series comes with a 1/2" kingpin and a wide selection of wheel types. Polyolefin is a light weight injection molded wheel that has high shock and impact resistance. This highly versatile wheel is non-marking, abrasion resistant, and resists chemicals and solvents. wheel diameter: | 4" | capacity: | 300 | wheel material: | Polyolefin | caster type: | Swivel | bearing: | Plain bore | category: | Plate | tread width: | 1-1/4" | overall height: | 5-1/8" | swivel radius: | 3-1/2" | overall plate/stem: | 2-3/8" x 3-5/8" | bolt holes: | 1-3/4" x 2-7/8" to 3" & centered x .238 | mounting bolt: | 5/16" | durometer: | 65-70 shore (D) | temperature range: | -45 deg to 180 deg F | option: | Top Lock Brake |
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