You are designing a countershaft system for a specific application, and you need to select a suitable 03-series cylindrical roller bearing for supporting the countershaft. The bearing will be installed using an indirect mounting method. The radial bearing loads are determined by adding 9.5 kN to the last digit of your student ID. The axial load is calculated similarly by adding 3.5 kN to half of the last digit of your student ID. The shaft rotates at a speed of 450 revolutions per minute (rev/min), and the desired operational life of the shaft is 6 years, considering a workweek of 5 days and 8 hours per day. The primary objective is to achieve a combined reliability of 98.5% for the selected bearing. Using an application factor of 1.1 and assuming that the outer ring rotates, design analysis the following:

a) Evaluate the equivalent radial load subjected to the cylindrical roller bearing.

b) Design a suitable 03-series cylindrical roller bearing that can effectively handle the

given radial and axial loads while meeting the expected life, and reliability goals..

c) Determine the reliability of the final selected bearing. Justify whether the selected

bearing is suitable for application with 98.5% reliability.

d) Designation of finally selected bearing according to the International Organization for

Standardization (ISO) standards.

Mechanical design

Answer rating: 100% (QA)

To design the countershaft system and select a suitable cylindrical roller bearing well follow the given specifications and perform the necessary calc... View the full answer