Roller bearings, compared with equivalent sized ball bearings, can handle generally higher loads, at generally lower limiting speeds.Also, given the same load rating, roller bearings are generally more compact than ball bearings.The Enduro roller bearings listed here are of two types:1. MR series, with their corresponding MI series inner rings.2. Various track roller types MI series inner ringsDesigned to work with both MR series outer races, as well as SRF series track rollers.The advantage that MI series rings offers is that when the bearing is worn, only the inner ring, rather than the entire shaft, needs to re replaced.Also the wide range of sizes allows for flexibility of design; the same inner ring can be combined with various outer raceroller assemblies, and vice versa. All MI series inner rings incorporate oil holes and grooves for lubrication systems that are designed as part of the shaft.Track Roller TypesCam followers and Yoke roller (CF, CFE, CFH, CYR, KR, NUTR, and SRF) are all track roller types.Outer races of these bearings run directly on a track or other wear surface.Bearings are not designed to be pressed into a housing. Cam follower types (CF, CFE, CFH, KR) do incorporate re-lubrication features into the integral shaft. Cam followers and yoke rollers are used in a wide range of industries: material handing and conveying, industrial trucks, food processing, textiles and general machinery. The preferred set up for Enduro cam followers is sealed with a internal hex recess (SB suffix)Yoke rollers are delivered sealed as wellUnsealed versions are available, as well as other options such as special coatings, special dimensions, OD profiles etc.