Optimal Design of Cash Circulation Module Gear for Financial Machinery Based on Tribology

Table 4

Effect of testing time on gear wear rate and single tooth wear quality.

Working hours (h)	Wear rate (%)		Wear quality of single tooth (mg)
	Gear with a pressure angle of 20°	Gear with a pressure angle of 35°	Gear with a pressure angle of 20°	Gear with a pressure angle of 35°
1000	0.08 ± 0.01	0.06 ± 0.01	0.06 ± 0.01	0.07 ± 0.01
2000	0.23 ± 0.01	0.19 ± 0.01	0.28 ± 0.01	0.21 ± 0.01
3000	1.03 ± 0.01	0.52 ± 0.01	0.86 ± 0.01	0.58 ± 0.01
3925	2.57 ± 0.01	0.88 ± 0.01	2.13 ± 0.01	1.01 ± 0.01