aft with spline HKH HKM On request D On request B3-SV13-B Bevel-helical speed reduction gearbox B3

Flender/Flender Gear Units/Bevel-helical speed reduction gearbox B3

of work hardening factor Designation Formula No. Work hardening factorZW1:2HB where: HBBrinell hardness of the softer member only ZW1 for the harder member ZW1 if pinion and wheel are of the same hardness ZW1.2 for HB <1; ZW1.0 for HB >4(4.4.2 Load Capacity Calculation 1 Bevel slip factor S1,2 The slip factor considers the inuence of specic sliding of the tooth anks on the permissible contact stress. It is determined as function of the mid-zone factor -. Linear interpolation of Sis applied for 0.95, provided optimum conditions in terms of material and manufacturing quality are met. In the static stress range ( <, the life factor is set at 1.6. Interpolations are made between these two values for the static and endurance strengths. Hypoid factor Hyp The hypoid factor Hypconsiders the effects of the offset- induced lengthwise sliding component in hypoid gears, when compared to bevelTable 4.3 Calculation of bevel slip factor Designation Formula No. Slip factor ZS1:1 ;ZS2:0f ZMB<0:9 (4. ZS1:0;ZS2:1 for ZMB>1:0 (4. Fig. 4.2 Life factor NTfor pitting (see Fig. 4.2 for abbreviations)1 4 Load Capacity and Efciency gears, in reducing load capacity. value of Hyp1 applies for bevel gears (Table 4.. 4.2.5.3 Safety Factor Again