Analysis of Dynamic Characteristics of Grease-Lubricated Tapered Roller Bearings

Table 2

Relationships between grease physical properties and temperature [26].

Grease	Temperature/°C	Yield stress τy/Pa	Plastic viscosity φ/Pa·s^n	Power law exponent n
Polyurea	15	501.7	11.87	0.7731
	30	351.8	8.44	0.7196
	50	305.5	6.16	0.6621
	70	188.5	6.10	0.7378
Lithium	15	904.5	54.35	0.3053
	30	805.2	46.23	0.3125
	50	710.4	41.13	0.3151
	70	339.8	52.96	0.3203
Calcium	15	990.8	64.82	0.3349
	30	649.5	49.23	0.5344
	50	336.1	30.59	0.5256
	70	296.0	35.88	0.4356