Caster; Swivel; 3-1/2" x 1-1/4"; TPR Rubber (Gray); Threaded Stem (1/2"-13TPI x 1-1/2"); Zinc; Prec Ball Bearing; 250#; Thread Guard; Total Lock (Shepherd PGT35748ZN-TPR22(GG) / 201431M)
Wheel Diameter: 3-1/2"Tread Width: 1-1/4"Material: Thermoplastized Rubber (Gray)Load Rating (Per Item): 250 poundsFinish: ZincConnector Details: Threaded Stem (1/2"-13TPI x 1-1/2")Bearing: Precision Ball BrngTotal Lock (Trailing)Misc Options: Dust Cover (Mtl)Misc Options: Thread guardsSwivel Locks: Total Lock (Trailing)Load Height: 4-5/8"Swivel Radius: 4-3/8"Shipping Weight: 2 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.