Description Model 30 Swivel Casters are a step up from swivel caster model G15 in that it features larger swivel, wider wheels, and wheel bearings. The precision machined swivel provides superior performance on both manually moved and mechanically powered machinery. The metal frames are zinc plated for rust resistance, and there are greasing fittings for all moveable parts. Popular options include a face contact wheel brake to lock the wheels and a hand operated swivel lock that converts a swivel caster into a rigid caster for direct line travel. Capacity up to 7,000 pounds per caster. Model 30 features a large swivel and wheel bearing which allows for heavy loads and more arduous service. Benefits include easier swiveling, reduced swivel vibration, and longer trouble free performance. Ideal for shipyard operations, oil and gas equipment, and mining operations. Caster City manufactures this caster and it is also available in 304 Stainless Steel as the SS-30 for wet or corrosive applications. For more info and help placing an order, contact us at 800-501-3808. This Conventional Mold-On Rubber Caster Wheel has a soft rubber tire molded onto a cast iron center for long-lasting performance in demanding environments. Soft rubber provides more desirable operating characteristics than any other wheel material. It is quiet, absorbs shock (prolonging equipment life and protecting cargo), can roll over small objects, protects costly floor surfaces, and minimizes vibration. The “MR” wheel has a tire hardness of 65 to 75 Durometer, Shore A, and an operating temperature range of -20°F to 159°F. The Conventional Mold-On rubber caster wheel falls short of perfection in its limitation under load —” it does not roll easily. Load capacity ratings do not take into account the effort required to manually move a load (drawbar pull measured in pounds). If cargo is to be moved manually, reduce capacity ratings by 50% and select the largest practical wheel diameter. These caster wheels should not be left standing under load for extended periods as the tires may take a permanent “set” or develop flat spots. They can be used on almost any dry factory floor. The bonding agent which holds the rubber tire to its iron center can be affected by exposure to some chemicals, impact, overloading, and the buildup of heat. In practice, employees will load equipment only to the capacity that they can move. For maximum productivity and return on your investment consider our easy rolling Premium rubber caster wheels. Also consider our non-marking Gray Rubber and Super Cushion Rubber caster wheels. Ideal for steel mills, foundry operations, and heavy machinery moving. *This Plate Caster Model 30 contains Conventional Moldon Rubber Wheels and is displayed with the 8″ x 3″ wheel.  For more information and help placing an order, give us a call at 800-501-3808.