Some Experimental and Simulation Results on the Dynamic Behaviour of Spur and Helical Geared Transmissions with Journal Bearings

Table 2

Shaft data.

	Pinion shaft	Gear shaft
Outer diameter (mm)	70	90
Inner diameter (mm)	30	30
Shaft length (mm)	1280	1415
Bearing distance to pinion/gear: 𝐸𝑝 (mm)	640 max–320 min
Young’s modulus (MPa)	210 000
Poisson’s ratio	0.3
Density (kg/m^3)	7 800
Thrust bearing stiffness (N/m)	4 × 10^7	6 × 10^7 N
Elastic coupling stiffness (N/m)	1 × 10^7