Specification: Diameter: 12 mm Length: 500 mm Colour: Silver Feature: Smooth motion Performance: Low noise Bearing Blocks: 4 pieces SBR12UU Rail Shafts: SBR162-500mm Features: Complete Linear Rail Kits: This linear rail set includes 2pcs 500 mm long SBR12 rail shafts and 4pcs SBR12UU blocks. Sliding blocks are used cooperatively with rails, smooth sliding provided by the inside linear bearing .
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