We offer 3d Printer Linear Bearings.Structure: Deep Groove Type: Ball Brand Name: Language Bore Size: 1 - 100 mm Outside Diameter: 8 - 140 mm Model Number: L-C-02-002, L-C-02-005 Precision Rating: P0, P6, P5 , P4 , P2, Seals Type: Open or Sealed Number of Row: single or double row