PSI - Issue 80

Simone Messina et al. / Procedia Structural Integrity 80 (2026) 232–243 Simone Messina/ Structural Integrity Procedia 00 (2019) 000–000

234

Fig. 1 Complete transmission system.

Table 1. Transmission Mechanism Data Parameter

Value

Pinion (Gear 1)

25 teeth 99 teeth

Second gear (Gear 2)

Transmission ratio (Stage 1)

≈ 3.96

Third gear (Gear 3) Fourth gear (Gear 4)

28 teeth 75 teeth

Transmission ratio (Stage 2)

≈ 2.6 17.5°

Normal pressure angle

Normal module Helix angle (β)

1.2 25°

Torque transmitted (Stage 1)

141 Nm

Total contact ratio Profile contact ratio Flank contact ratio

≈ 4. 8

2.4 2.4