Description:-They usually consist of a lightweight, aluminum housing to provide high strength and stiffness.-Compact design with high load carrying capacity, Linear Motion Bearing Unit is a rolling friction supporting element that usually used for linear motion mechanical parts with small friction.-Coordinate with Linear Motion Shaft, recirculating balls provide unlimited stroke at low friction movement, permit temperature within 80 degrees Celsius.-It is great for 3D printers, CNC, and other applications. Specification:Bearing No.: LMH12LUUBearing Ball Material: Chromium SteelOuter Shell Material: Chromium SteelCage Material: NylonNominal Shaft Diameter (dr): 12mmOuter Diameter (D): 21mmTotal Length (L): 57mmMounting Hole Dia.: 4.5 x 8mm / 0.18" x 0.31" (d1*d2)Mounting Hole Distance: 32mm / 1.26"Flange Size: 42 x 27 x 6mm / 1.
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