A pair of bevel gear with 20° pressure angle consists of a 20 teeth pinion meshing with a 30 teeth gear. The module is 4 mm, while the face width is 20 mm. The material for pinion and gear is steel 50C4(σut=750 N/mm2). The surface hardness of gear is 400 BHN. The pinion rotates at 500 rpm and receives2.5 kW power from the electric motor. The service factor is 1.5. Determine the factor of safety against bending failure and against pitting failure.
Answers
Answer:
pair of bevel gear with 20° pressure angle consists of a 20 teeth pinion meshing with a 30 teeth gear. The module is 4 mm, while the face width is 20 mm. The material for pinion and gear is steel 50C4(σut=750 N/mm2). The surface hardness of gear is 400 BHN. The pinion rotates at 500 rpm and receives2.5 kW power from the electric motor. The service factor is 1.5. Determine the factor of safety against bending failure and against pitting failure.
Explanation:
pair of bevel gear with 20° pressure angle consists of a 20 teeth pinion meshing with a 30 teeth gear. The module is 4 mm, while the face width is 20 mm. The material for pinion and gear is steel 50C4(σut=750 N/mm2). The surface hardness of gear is 400 BHN. The pinion rotates at 500 rpm and receives2.5 kW power from the electric motor. The service factor is 1.5. Determine the factor of safety against bending failure and against pitting failure.