Trapezoidal threaded nut 20x4 R gunmetal with aluminum housing Through the aluminum housing with two mounting threads, the mechanical complexity, e.g can be significantly reduced when building a CNC or rapid prototyping machine. The case is perfect for combining with the offered linear bearings SCE25UU, SCJ25UU and SBR25UU and TBR25UU Linear Bearings Features:. length housing: 40,4mm overall length: 40,4mm width: 76mm (W) height: 51,5mm (H) distance shaft center - mounting surface: 26mm (h) threaded : M8 x 18 (S x I) thread distance: 54mm (J) case material: natural aluminum anodised The trapezoidal threaded nut is a German quality product . material: Phosphor bronze 7Zn (Rg7), material no. 2.1090 spindle diameter: 20mm pitch: 4mm right-hand thread Contrary to the picture is the mother of a little shorter than the housing!
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