Description: LFR bearings are specially guide wheel and pulley wheel for 3D printer extrude, textile machine and press machine. Single-row, pre-lubricated, normal accuracy, low noise and smooth. With small friction and high-limit speed, these u groove pulley bearings are cost-effective and require little maintenance. Chromium Steel (GCr15) made with heat treating, provides high and uniform hardness, good wear resistance, and high contact fatigue performance. Suitable for furniture hardware accessories, mobile doors, glass sliding doors, aluminum doors and windows, shower pulleys and drawers, etc. Specification:Model: LFR5204-16Shield Type: Double Shielded (KDD)Inner Race/Outer Race Material: Chrome SteelCage Material: SteelInner Diameter: 20mmOuter Diameter: 52mmOuter Race Thickness: 20.6mmInner Race Thickness: 22.6mmFit for Shaft Dia.: 16mmAccuracy Class: P0 (ABEC-1)Noise Level: Z1Number of Pack: 1 Pcs
