AT POINTS A AND B$,$ ARE LOCATED BEARINGS THAT SOMEHOW FIX THE SHAFT.

FIX THE SHAFT. AT POINT $($B$)$ AND $($C$)$ THERE ARE DIAMOND PULLEYS AT POINTS A AND B$,$ THERE ARE BEARINGS THAT SOMEHOW FIX THE SHAFT.

FIX THE SHAFT. AT POINT $($B$)$ AND $($C$)$ THERE ARE PULLEYS OF DIAMETERS $($DB$=16")$ AND $($DC$=12").$

THE OBSERVED FORCES ACT ON THE SURFACE OF THE PULLEYS AND REPRESENT THE BELT TENSIONS.

REPRESENT THE BELT TENSIONS. THE SHAFT WILL BE MADE IN A CAST IRON OF

ASTM STEEL GRADE $25$ USING A DESIGN FACTOR nd$=3\mathrm{.}0....$

WHAT DIAMETER SHOULD BE USED FOR THE SHAFT. THE OBSERVED FORCES ACT ON THE SURFACE OF THE PULLEYS AND REPRESENT THE BELT TENSIONS.

REPRESENT THE BELT TENSIONS. THE SHAFT WILL BE MADE IN A CAST IRON OF

ASTM STEEL GRADE $25$ USING A DESIGN FACTOR nd$=3\mathrm{.}0....$

WHAT DIAMETER SHOULD BE USED FOR THE SHAFT.z