Linear Ball Bearings, LMF20UU 20mm Round Flange Linear Motion Bushing Double Side Rubber Sealed for 20mm Linear Shaft CNC Machine 3D Printer 4 Pack

Linear bearings are widely used in electronic equipment, tensile testing machines and digital three-dimensional coordinate measuring equipment and other precision equipment, as well as multi-axis machine tools, punch presses, tool grinding machines, automatic gas cutter, printers and other industrial machinery sliding.

Feature: Made of Carbon Steel material, Double Side Rubber Seal Linear Motion Ball Bearing Bushing.

Great for linear motion on 3D printer, CNC, and other applications.

These ball bearing are fitted with two rubber dust sealed to prevent ingress of dirt, water and foreign matter.

Coordinate with Linear Motion Shaft, recirculating balls provide unlimited stroke at low friction movement, permitting temperature within 80 degrees Celsius.

Smooth moving, low friction, high rigidity, and long life.

Economical, easy to maintain replace.