Description Width of Groove : 7/8″ Depth of Groove: 7/16″ Rigid Plate Model 30 is a step up from the rigid casters shown on Model G15. These Rigid casters have wider wheels, large wheel bearings, a higher load capacity rating, and a larger mounting plate than the caster that is shown on G15. It features superior performance on both hand powered and mechanically moved machinery. The Model 30 frames are plated in zinc for rust resistance. There are grease fittings for the bearings in the wheel. Rigid casters are usually attached to machinery at the opposite end of the push handle and where casters with swivels are attached. This enables the person pushing the equipment to be able to control the line of travel. It should also be stressed that Rigid casters have two legs perpendicular to the mount plate, therefore they can not move sideways. Equipment with two rigid casters and two swivel casters must be handled into position. Capacity up to 7,000 pounds per plate caster. Model 30 features a large swivel and wheel bearing which allows for heavy loads and more arduous service. This caster is also available in 304 Stainless Steel as the SS-30 for wet or corrosive applications. For more information and assistance placing an order, contact us at 800-501-3808. V-groove caster wheels are designed to guide equipment by rolling on inverted angle iron track. Elevated track minimizes problems caused by floor debris. The relief groove at the base of the “V” equalizes the load on each face of the angle. Ductile steel V-groove wheels are selected due to their ductility and tensile strength of 45,000 psi, which allows them to absorb shocks and impacts without failure. These solid steel wheels are incredibly durable in normal service. Caster City manufactures all of our steel wheels with a lubrication fitting in the hub. We offer Ductile steel V-groove wheels with a variety of bearing choices for optimal performance in different applications. V-groove wheels are available with 7/8″ groove width for 1″ angle iron or 1-3/8″ groove depth for 1.5″ angle iron. Ductile steel V-groove caster wheels can withstand high temperatures up to 700°F depending upon the application. At temperatures above 400°F continuous, steel roller bearings and spanner bushings can start to anneal – please consult our engineering department for further assistance. Ideal for industrial oven and furnace carts, turbine handling, and nuclear facility equipment.