Closed Pillow blocks are for use with END supported shafting.For use with Class L shaftingBall Bushing Bearings are included and factory installed in each Pillow BlockAluminum is black anodized (not pictured)The -XS adds black anodized. May consider the part number without the -XS.SpecificationsSpecificationsValueAdjustable/Not AdjustableNot AdjustableBlack OxideBlack AnodizeClosed/OpenClosedMaterialAluminum; Plastic; RubberNumber of Ball Circuits4Self AlignmentSelf-aligningSingle/TwinTwinTemperature Max185 °FUse with shafting ClassClass LWeight0.205 lbDimensionsDimensionValue[d] Shaft, Nominal Diameter0.25 in[A]1.63 in[A2]1 in[B]2.5 in[E1]1.313 in[E1] Tolerance± 0.010 in[E2]2 in[E2] Tolerance± 0.010 in[F]0.75 in[F1]0.19 in[G]0.44 in[G1]1.25 in[G2] Access for Lubricationoil lubricant fitting[H]0.437 in[H1]0.81 in[N]0.16 inPerformancePerformanceValueLoad Capacity, Dynamic120 lbf