Machine Design
For unequal width of butt straps, the thicknesses of butt straps are

0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside
0.625 t for both the straps on the inside and outside
0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside
0.75 t for both the straps on the inside and outside

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Machine Design
The creep in the belt is due to

Effect of temperature on belt
Stresses beyond elastic limit of belt material
Unequal extensions in the belt due to tight and slack side tensions
Material of belt

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Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Move towards right of the bearing making no metal to metal contact
Move towards left of the bearing making metal to metal contact
Move towards right of the bearing making the metal to metal contact
Have contact at the bottom most of the bearing

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