Sealed Precision Ball Bearings, Tapered Roller Bearings, Top Hat Bearings
Sealed Precision Ball Bearings: offer an ergonomic solution; reducing friction & rolling resistance and require the least amount of force to start and maintain a rolling load; excellent for both manual mobility & tow line applications. Sealed precision bearings are maintenance Free! Not recommended for side thrust applications.
Tapered Roller Bearings: Heaviest duty type of roller bearings with the added advantage of tapered design. Inner & outer raceways are precision machined and heat treated. This is the best bearing for extreme duty loads & towing applications. Maximizes the weight capacity and mobility of the wheel. Requires periodical lubrication.
Top Hat Bushings: Used with precision ball bearings to provide exact amount of pressure on the inner raceway, prevent over tightening & stability, and adapts bore to desired axle size. May be used with plain bore wheels to provide exact spacing and adapts bore to desired axle size.