Oven Rack Casters are one of the most frequently used and abused Casters compared to many other types of Casters and Wheels on the market. Many companies that buy our High Temperature Oven Casters and Wheels are used 24 hours a day up to 7 days a week. We always recommend rotating the mobile oven racks so the wheels are not used 24/7 but some companies have no choice depending on their product demand as well as quantity of racks at their disposal. Luckily, here at Caster Headquarters we have amazing clients which allow us to test multiple wheel material options within their application to determine which wheel is the safest to use while holding up to the high temperatures and harsh environments for the longest periods of time. We have tested the top 3 high temperature wheel materials and came to the determination that the Green High Temperature Epoxy Resin Wheels out perform any other high temperature wheel on the market specifically for bakery and oven applications.
High Temperature Wheels Tested in a walk-in oven:
High Temperature Glass Filled Nylon Wheels - Great for smooth non-grated floor and shorter baking times. These wheels need a cool down period otherwise they develop flat-spots if used for longer periods of time.
High Temperature Phenolic Wheels - Great for smooth non-grated floor and short baking times. These wheels need a cool down period otherwise they develop flat-spots if used for longer periods of time. Phenolic Wheels are also not meant for humid or wet environments so these should never be washed down as the wheel can become brittle and fall apart.
High Temperature Green Epoxy Resin Wheels - WINNER! - This wheel is the true winner when it comes to baking times, temperatures, wash-downs, and even floor types. We have tested this fully loaded running non-stop on steel grated floors which are very rough and this wheel continues to hold up the longest and out-perform the other high temperature wheels on the market. This wheel has a patent to protect the specific wheel material makeup and is a proprietery product that took years of engineering to perfect. Don't be fooled by copy-cat or look-a-like versions that are on the market. There is no other green high temp epoxy wheels that perform as well as this specific high temp wheel used in industrial ovens.
The most common oven rack caster would have a wheel diameter of 4 inches and a wheel tread width of 1-1/2". Typically if you buy our industry standard bakery caster it should fit 95% of bakery racks as majority of the OEM's manufacture their racks to fit this specific size caster and wheel. The mounting plate is typically a 3-1/8" x 4-1/8" overall plate size with a bolt hole pattern of 3-1/8″ X 2-1/16″. The overall height of this Caster from the bottom of the wheel to the top of the mounting plate is 5-1/8" and the bore of this wheel is very specific which is a 5/16" axle that runs through the wheel. We do offer this same wheel with a 1/2" bore and a 3/8" bore if your specific caster or wheel is not the industry standard 5/16" version. Our green high temp epoxy wheels can withstand up to 500 lbs of weight capacity per caster and has a temperature range of -20° F to 550°F. Our bearing setup comes standard with Dual 5/16" Sealed Quad Precision Bearings which allows your bakery rack to roll smooth, quietly and almost effortlessly across any floor type.