Tapered roller bearings (TRBs) utilize rolling elements that are shaped like a truncated cone (Figure 1), and are constructed so that all tapered surfaces converge at a common apex point on the bearing centerline to yield true rolling motion (Figure 2). Tapered roller bearings are generally used in lower speed, high load applications and are capable of absorbing radial and/or axial loads. The internal angles may be designed to tailor the bearing to the loading demands of a specific application. Tapered roller bearings are a separable two-piece design (cup and cone) (Figure 3); which, allows the end-use to optimize the internal clearance (and life) for each application when the bearing is mounted. PEER primarily manufactures single row (TS), sealed single row (LA), and matched set tapered roller bearings.