Torque required to overcome the friction between shaft and bearing surface in case of multiple flat collar bearing is ___________.

Related MCQs

• Torque required to overcome the friction between shaft and bearing surface in case of multiple flat collar bearing is ___________.
• 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
• A conical pivot supports a load of 20 kN, and its semicone angle is 41.81 degree. The friction coefficient is 0.06 and shaft runs at 200 rpm. The torque required to overcome friction and power lost in friction 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
• 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____.
• A flat footstep bearing 10 cm radius supports a load of 3 kN. The shaft runs at 600/π r.p.m. and co-efficient of friction is 0.1.The friction torque and frictional power in watts with uniform pressure are respectively.
• A flat footstep bearing 10 cm radius supports a load of 3 kN. The shaft runs at 600/π r.p.m. and co-efficient of friction is 0.1. The friction torque and frictional power in watts with uniform wear are respectively.
• 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 ____.
• For flat and conical pivots, the ratio of friction torque with uniform wear to friction torque with uniform pressure is ____.