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## A flat foot step bearing 225 mm in diameter supports a load of 7500 N. If the co-efficient of friction is 0.09 and the shaft rotates at 60 rpm, calculate the power lost in frictional torque and frictional power in watts with uniform pressure is ___. |

A. | 50.62 n-m and 317.92 watt |

B. | 60.62 n-m and 320.92 watt |

C. | 57.68 n-m and 321.92 watt |

D. | 55.50 n-m and 410.12 watt |

Answer» A. 50.62 n-m and 317.92 watt |

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