McqMate

Q. |
## In a multi-collared thrust bearing consisting of 'n' collars and subjected to axial load W, load sheared by each collar is _______. |

A. | w |

B. | w/n |

C. | w/(n-1) |

D. | none of these |

Answer» B. w/n |

1.7k

0

Do you find this helpful?

7

View all MCQs in

Theory of MechanicsNo comments yet

- A thrust bearing having collars of external and internal diameter as 40 cm and 20 cm respectively, carries an axial load of 3000 N. The co-efficient of friction is 0.09 and shaft runs at 420 rpm. The power lost in friction is to be determined. The corresponding value of friction torque would be ____.
- A thrust bearing having collars of external and internal diameter as 40 cm and 20 cm respectively, carries an axial load of 3000 N. The co-efficient of friction is 0.09 and shaft runs at 420 rpm. The power lost in friction would be equal to ____.
- When the axial load carried by the shaft in case of flat collar bearing, is large; a number of collars are provided on the shaft. This is done____.
- The number of collars are provided to carry a fixed axial force in a flat collar bearing _______.
- 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
- 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 purpose of providing multiple collars on a flat collar pivot bearing is to ____.
- Following are the details pertaining to thrust bearing 1) External and internal dia of contacting surfaces-320 mm and 200 mm resp. 2) Axial load-80 kN 3)Pr. Intensity-350 kN/m2 4) shaft speed-400 rpm 5)coefficient of friction-0.06 Calculate power lost in overcoming friction. the frictional torque and power lost in frictional
- Torque required to overcome the friction between shaft and bearing surface in case of multiple flat collar bearing is ___________.