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Q. |
## The frictional torque transmitted by a conical bearing is ____. |

A. | less than that of flat collar bearing |

B. | equal to that of flat collar bearing |

C. | more than that of flat collar bearing |

D. | none of the above |

Answer» C. more than that of flat collar bearing |

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- For uniform pressure the ratio of frictional torque for a flat collar bearing to the frictional torque for conical collar bearing is equal to____. Where ϴ=semi-angle of the cone
- For uniform wear, the ratio of frictional torque for a flat collar bearing to the frictional torque for conical collar bearing is equal to____. Where ϴ=semi-angle of the cone
- In case of flat pivot bearing the frictional torque transmitted for uniform pressure as compared to the frictional torque transmitted for uniform wear_____.
- According to uniform were theory frictional torque transmitted by conical pivot bearing is ________.
- The ratio of frictional torque for a conical collar bearing to that for flat collar bearing is proportional to____. Where ϴ=semi-angle of the cone
- The ratio of friction torque transmitted for uniform pressure to frictional torque transmitted for uniform wear in case of flat pivot, is equal to_______.
- The frictional torque for the same diameter in a conical bearing is ____.
- The frictional torque produced due to friction for same shaft diameter, in conical bearing is____.
- The ratio of frictional torque produced for uniform wear to frictional torque produced for uniform pressure is ____.
- 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 ___.