PSI - Issue 14

348 4

Varatharaj Neelakandan et al. / Procedia Structural Integrity 14 (2019) 345–353 Varatharaj Neelakandan / Structural Integrity Procedia 00 (2018) 000–000

Figure 4: Bearing reaction load free body diagrams

2.2. Input data Lock torque (T): 34 Nm Pinion pitch circle diameter (d): 22.86mm

Pressure angle (ϕ): 20 deg Static safe factor (SF): 2.5

2.3. Bearing load calculation Tangential load F T = 2*SF* T/d = 2*2.5*34/22.86 = 7436.57 N Radial load F R = F T * tan (ϕ) = 7436.57* tan (20) = 2706.69N Pinion load F = Square root of (F R 2 +F T 2 ) = 7913.83 N Static equilibrium equation: R S + R H = F = 7913.83 N Moment equilibrium equation: R S *0 + R H * 61.57 = F *(61.57+55.3) = 7913.83*116.87/61.57 = 15022 N (Positive) From the static equilibrium equations: R S + R H = F = 7913.83; R S = 7107.93N (Negative)