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3 years ago

If a tapered roller bearing is adjusted to loose, the bearing will bind and overheat.

Engineering

1 answer:

ad-work [718]3 years ago

8 0

Answer:

If the tapered roller bearing clearance is too tight, the components will bind and overheat due to increased pressure and because the rollers squeeze out too much grease, making the lubricating film too thin.

Explanation:

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S= d/t
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2 years ago

For a fluid with a Prandtl Number of 1000.0, the hydrodynamic layer is thinner than the thermal boundary layers. a) True b) Fals

kvv77 [185]

Answer:

(b)False

Explanation:

Given:

Prandtl number(Pr) =1000.

We know that $Pr=\dfrac{\nu }{\alpha }$

Where $\nu$ is the molecular diffusivity of momentum

$\alpha$ is the molecular diffusivity of heat.

Prandtl number(Pr) can also be defined as

$Pr=\left (\dfrac{\delta }{\delta _t}\right )^3$

Where $\delta$ is the hydrodynamic boundary layer thickness and $\delta_t$ is the thermal boundary layer thickness.

So if Pr>1 then hydrodynamic boundary layer thickness will be greater than thermal boundary layer thickness.

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So hydrodynamic layer will be thicker than the thermal boundary layer.

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3 years ago

This problem has been solved!

lisov135 [29]

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Explanation:

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Vinil7 [7]

Answer:

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