Tangential Force In Sliding Contact Bearing Calculator

Formula Used:

\[ P = \mu_o \times A_{po} \times \frac{V_m}{h} \]

Dynamic viscosity of oil:

Pa·s

Area of moving plate on oil:

m²

Velocity of Moving Plate on Oil:

m/s

Oil film thickness:

Tangential force on moving plate:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Tangential Force in Sliding Contact Bearing?

Tangential force on moving plate is the force that acts on a moving plate that is sliding onto a oiled surface in sliding contact bearings. It represents the frictional resistance that must be overcome to maintain motion between the sliding surfaces.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P = \mu_o \times A_{po} \times \frac{V_m}{h} \]

Where:

\( P \) — Tangential force on moving plate (N)
\( \mu_o \) — Dynamic viscosity of oil (Pa·s)
\( A_{po} \) — Area of moving plate on oil (m²)
\( V_m \) — Velocity of Moving Plate on Oil (m/s)
\( h \) — Oil film thickness (m)

Explanation: The formula calculates the tangential force based on the oil's viscosity, contact area, sliding velocity, and oil film thickness between the moving surfaces.

3. Importance of Tangential Force Calculation

Details: Accurate calculation of tangential force is crucial for designing efficient sliding contact bearings, determining power requirements, and ensuring proper lubrication for reduced wear and friction in mechanical systems.

4. Using the Calculator

Tips: Enter dynamic viscosity in Pa·s, area in m², velocity in m/s, and oil film thickness in m. All values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is dynamic viscosity of oil?
A: Dynamic viscosity of oil is the resistance to movement of one layer of fluid over another, measured in Pascal-seconds (Pa·s).

Q2: How does oil film thickness affect tangential force?
A: Thinner oil films generally result in higher tangential forces due to increased shear stress, while thicker films reduce the force but may lead to other issues like leakage.

Q3: What are typical values for dynamic viscosity?
A: Typical engine oils range from 0.01 to 0.5 Pa·s, with specific values depending on oil grade and temperature.

Q4: When is this calculation most applicable?
A: This calculation is most accurate for laminar flow conditions in well-lubricated sliding bearings with constant oil film thickness.

Q5: How does temperature affect the calculation?
A: Temperature significantly affects oil viscosity, which directly impacts the tangential force. Higher temperatures typically reduce viscosity and thus decrease the tangential force.