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 LWeight0.274 lbDimensionsDimensionValue[d] Shaft, Nominal Diameter0.375 in[A]1.75 in[A2]1.13 in[B]2.75 in[E1]1.438 in[E1] Tolerance± 0.010 in[E2]2.25 in[E2] Tolerance± 0.010 in[F]0.88 in[F1]0.19 in[G]0.5 in[G1]1.37 in[G2] Access for Lubricationoil lubricant fitting[H]0.5 in[H1]0.94 in[N]0.16 inPerformancePerformanceValueLoad Capacity, Dynamic200 lbf