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Table 2 Correlation coefficients between the thermal deformation and the temperature changing values

From: Thermal Error Compensation of the Wear-Depth Real-Time Detecting of Self-Lubricating Spherical Plain Bearings

Detecting point name

Correlation coefficient

1-Base of the bearing fixture

γ1→0.922

2-Heel block

γ2→0.871

3-Spherical plain bearing

γ3→0.841

4-T-type plate

γ4→0.900

5-Platform of the test bench

γ5→0.896

6-Measuring sleeve

γ6→0.927

7-Detecting frame

γ7→0.940

8-Slender pole

γ8→0.936

9-Environmental temperature

γ9→0.943 (maximum)

10-Base of the hydraulic station

γ10→0.537 (minimum)