talking to der

``` yes

this guy looks familiar

i think i've seen him at US before

or maybe brighton uni

why don't they just do things in metres

    ---------   /----------\
    |       |  = minecraft? |
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    |       |
-----------------
|   |       |   |
|   |       |   |
|   |       |   |
|   |       |   |
|   |       |   |
|---|       |---|
|   |       |   |
-----------------
    |   |   |
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-- | | | |||| | | | || |---|---| _________

why is engine so cold icy engine 🥶

eliot dinner on head?

:nauseated: :face_vomitting:

:der_pac:

:alv.cx:

:fortnitechug:

:rowwiep:

:twinightcreep0:

:zalmon:

:poo_eater:

:snappy_gator36:

:lefbt:

:daniel:

:jrbignon:

:xenethar:

:choccho:

:tirion_lewis:

:benfh003:

:chickenninja95:

:@everyone:

:@everyone: :@everyone: :@everyone: :@everyone: :@everyone: :@everyone: :@everyone: :@everyone: :@everyone: :@everyone:

:@Sergeant Sploinko vc:

  _______________          
  |             |          
  |   _______   |          
  |   |     |   |          
  |   |_____|   |          
  |        _____|          
  |    |\  \               
  |    | \  \              
  |    |  \  \             
  |    |   \  \            
  |    |    \  \           
  |____|     \__\ oblox

vin i am so hungry


</details>

# Gears

- pinion in gear pair is small one
- there are two important stresses in gears: bending and contact stresses

$$\sigma = \frac{W_t}{K_vFmY}$$

where $K_v = \frac{6.1}{6.1+V}$, $W_t = \frac P V$ is transmistted load, $F$ is face width, $m$ is
module, $Y$ is Lewis factor

where $V$ is pitch line velocity

## Gear Trains

A gear train is a collection of two or more gears.

This is used to go beyond the typical limit of two meshing gears (~10:1).

### Simple Gear Train

The train ratio of a simple gear train is always $\frac{N_{input}}{N_{output}}$.

An idler gear may be used to change rotation of the output shaft.

### Compound Gear Trains

Having parallel arrangements leads to the intermediate gears not being cancelled out.

A general formula is

$$m_y = \frac{\Pi N_{driver}}{\Pi N_{driven}}$$


# Belts

flexible and quiet but vulnerable to environmental conditions

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talking to der

2.6 KiB

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