Caster; Swivel; 4x1-1/4; TPR (Gray); Threaded Stem (1/2-13TPI x 1-1/2); Nylon; Precision Ball Brng; 275#; Thread guards; Total Pedal Lock (MedCaster NG-04QDP-125-TL-TS03)
Wheel Diameter: 4"Tread Width: 1-1/4"Material: Thermoplastized Rubber (Gray)Load Rating (Per Item): 275 poundsFinish: Nylon (Gray)Connector Details: Threaded Stem (1/2"-13TPI x 1-1/2")Bearing: Precision Ball BrngTotal Lock (Trailing)Misc Options: Thread guardsSwivel Locks: Total Lock (Trailing)Load Height: 5-7/16"Swivel Radius: 4-7/16"Shipping Weight: 1.45 lbs.Usually Ships in: 24 hours (may be affected by quantity ordered)
Thermoplastic Rubber (TPR) wheels are precision molded and mechanically locked to a durable polyolefin core to provide an economical wheel for many applications. They provide a smooth, cushioned ride and can overcome small debris and obstacles on the floor. They offer floor protection, are non-marking and non-conductive. These often have various brand names by various manufacturers and can be flat or crowned.
TPR are considered soft wheels which may experience flat-spotting even when loaded within the acceptable weight limits. Flat-spotting is more noticeable in warmer weather. The flat-spotting will roll-out and dissipate after a few minutes of rolling, depending on the size of the standing load and extent of the flat-spotting. This is a normal occurrence of these wheels and is not a product failure. If your application cannot tolerate this temporary condition, another material type may be preferable.