Open Pillow blocks are for use with CONTINUOUS supported shaftingFor use with Metric class Shafting.Ball Bushing Bearings are included and factory installed in each Pillow BlockSpecificationsSpecificationsValueBlack OxideBlack AnodizeClosed/OpenOpenMaterialAluminum; Plastic; RubberNumber of Ball Circuits8Self AlignmentSelf-aligningSingle/TwinTwinTemperature Max185 °FWeight1.8 kgDimensionsDimensionValue[d] Shaft, Nominal Diameter30 mm[A]87 mm[A1]43.5 mm[A1] Tolerance± 0.020 mm[Alpha]55 °[B]152 mm[E1]68 mm[E1] Tolerance± 0.1 mm[E2]106 mm[E2] Tolerance± 0.1 mm[G2] Access for LubricationM6 X1[H]35 mm[H] Tolerance±0.020 mm[H1]60 mm[N]8.40 mmPerformancePerformanceValueLoad Capacity, Dynamic16600 NStatic Load Rating18200 N