In this design, two rows of rollers operate in separate raceways ground into the inner ring with a guide rib to guide the rollers. The outer ring has a single spherical raceway, thus allowing the inner ring and rollers to freely compensate for angular errors due to inaccurate machine components or due to elastic deflection of the shaft or housing under loads. As a result of the line contact, a large number of rollers, and the substantial contact angle, these bearings have large radial and thrust load capacity. They are suitable for heavy shock and impact loads. Series 22200K•1/12 Tapered Bore. This type of bearing must have an adapter sleeve when in use.