The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft and $$\tan \varphi $$ = Coefficient of friction between the shaft and bearing)?

$${\text{r}}\sin \varphi $$
$${\text{r}}\cos \varphi $$
$${\text{r}}\tan \varphi $$
$$\frac{{\text{r}}}{2}\cos \varphi $$

LohaHridoy

15 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 1

Let'

15 views Answered 2022-09-01 13:21

Related Questions

A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the?

1 Answers 6 Views

When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel and $$\varphi $$ = Pressure angle)?

1 Answers 14 Views

The efficiency of a screw jack is maximum, when (where $$\alpha $$ = Helix angle and $$\varphi $$ = Angle of friction)?

1 Answers 6 Views

The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing and R = Radius of bearing surface)?

1 Answers 5 Views

The maximum efficiency of spiral gears is (where $$\theta $$ = Shaft angle and $$\varphi $$ = Friction angle)?

1 Answers 5 Views

The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is (Where μ = Coefficient of friction, W = Load over the bearing, R = Radius of bearing)?

1 Answers 5 Views

A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where $$\mu $$ = $$\tan \varphi $$ = Coefficient of friction between the plane and the body)?

1 Answers 6 Views

For a shoe brake, the equivalent coefficient of friction is equal to (where $$\mu $$ = Actual coefficient of friction and $$\theta $$ = Semi-block angle)?

1 Answers 5 Views

The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)?

1 Answers 10 Views

Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)?

1 Answers 6 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)