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DescriptionThomson Bearing Supports for simple mounting of Thomson ball screw and ball spline assembliesRugged steel constructionScrew must be machined to fit into the block*Not compatible with all 1.5 in screws - See Related Products for full compatibility listDimension[A]42.50 mm (1.673 in)[B]53.00 mm (2.087 in)[C]106.00 mm (4.173 in)[D]15.00 mm (0.591 in)[D3]25.00 mm (0.984 in)[F]30.00 mm (1.181 in)[K]48.00 mm (1.890 in)[L]80.00 mm (3.150 in)[N]4x 11.0 Thru, 17.0 C-Bore x 11[S]50.00 mm (1.969 in)[T]20.00 mm (0.787 in)[U max]20.00 mm (0.787 in)[V min]24.99 mm (0.984 in)[V max]25.00 mm (0.984 in)[W]16.35 mm (0.644 in)[X]1.35 mm (0.053 in)[Y]23.90 mm (0.941 in)