This E.R. Wagner plate caster has a polyurethane on polyolefin wheel, a flat 2-3/4" x 3-3/4" plate with four 11/32" x 13/32" holes for bolting or welding to an object, and a rigid design to allow movement in a back-and-forth motion. The plate caster's wheel consists of a red polyurethane tread molded to a gray polyolefin core. The wheel rolls with ease, provides quiet operation, resists abrasion and impact, and protects floors, and is suitable for bearing light to heavy loads on carpeted and hard-surfaced floors. The medium-soft polyurethane tread is non-marking and resistant to water, oil, and most acids, and it has a tread hardness of 50 to 60 Shore D. The wheel's recommended operating temperature range is -20 to 180 degrees F. The thread guard prevents loose threads from winding around the axle. The flat plate has 1-3/4" x 2-7/8" to 3" hole spacing and a zinc-plated finish that helps resist corrosion. The caster's roller bearing has a grease Zerk fitting for applying lubricant.
Plate casters are wheeled mechanisms used to support and maneuver objects such as carts, racks, and dollies. Plate casters are named for their mounting system: they have a flat plate, usually with four bolt holes, that forms the top of the caster and attaches to the object. Plate casters vary in their maneuverability. Some are rigid and only roll at a fixed angle, while other casters swivel to allow a 360-degree change in direction. Plate casters may have brakes, and swivel casters may have locks to set them to a fixed angle. Casters may have single or twin (dual) wheels made from a variety of materials. Generally, wheels with hard tread material have a higher load capacity and roll easier than soft tread wheels, which provide quieter operation and cushioning. Load capacity for plate casters is also affected by tread width and wheel diameter. Plate casters are used on furniture, carts, shelving, appliances, scrap bins, production dollies, and utility trucks for material handling applications in a variety of industries.
E.R. Wagner manufactures casters, wheels, hinges, stampings, and tubular products. The company, founded in 1900, is headquartered in Milwaukee, WI.