For DIY 2Pcs SBR12-1500mm Linear Shaft Rail,4× SBR12UU Square Type Bearings
Product Features: Diameter: 12mm Material: Carbon Steel Performance: Smooth motion, low noise Rail Shafts: 2Pcs SBR12-1500mm Bearing Blocks: 4Pcs SBR12UU Rail shaft length: 1500mm/59.1 inch Rail Shafts: SBR12, 59 in / 1500 mm Diameter: 12 mm Item Weight: 4997 Grams Bearing Type: Ball Bearing Rail Shafts: 2 × SBR12-1500mm Dynamic load per block: 600 N Static load per block: 1020 N Optical axis hardness: RC58-60 Accuracy optical axis: G6 Colour: Silver .