Mechanics Chains Quiz Flashcards

1
Q

How do chain drivers operate?

A

Tension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the advantages of chain drives?

A
  1. Versatility - Easily adjustable length
  2. Variety - Limitless Variations (Styles, spacing, and materials)
  3. Flexibility - Ability to bend back while maintaining positive engagement.
  4. Durability - Long operating life
  5. Can Operate in Hostile Environments - Withstand heat, water, oil, corrosion, etc
  6. Unlimited Shelf Life - Little to no deterioration
  7. Generally can be replaced without disturbing other components
  8. Large HP loads/speeds - Large load on large pitch, faster speed on small pitch
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the disadvantages of chain drives?

A
  1. Loud as fuck
  2. Chains wear and elongate over time
  3. Lower speed on large pitch chains
  4. Sprockets tend to need replaced
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

In chain nomenclature, what does 0 denote? (For example, 50)

A

Normal weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

In chain nomenclature, what does 1 denote? (For example, 51)

A

Light weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

In chain nomenclature, what does 2 denote? (For example, 52)

A

Large roller

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

In chain nomenclature, what does 5 denote? (For example, 25)

A

No roller (Only typical of chains below 1/2 pitch)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

In chain nomenclature, what does -# denote? (For example, 50-2)

A

Stranded chain/amount of strands (2 in this case)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In chain nomenclature, what does 20 – denote? (For example, 20 50)

A

Double pitch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

In chain nomenclature, what does H denote? (For example, 50H)

A

Heavy (Link plate is same thickess as the next chain size up)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In chain nomenclature, what does C denote? (For example, C20 50)

A

Conveyor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

In chain nomenclature, what does 3## denote? (For example, 300 50)

A

Stainless (Corrosion resistant, but not harder)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

In chain nomenclature, what does 6## denote? (For example, 600 50)

A

Hardened and Corrosion Resistant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

In chain nomenclature, how do you determine size? (For example, 50)

A

1st number out of 8 (excluding prefixes such as 300, 600, 20, and C). For this example, the chain is 5/8in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is chain pitch?

A

The distance between flexing joints.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How are chains connected?

A

Either Connecting/Master Links or Offset/Half Links

17
Q

What are Connecting/Master Links used for?

A

Even number of teeth on sprocket.

18
Q

What are Offset/Half Links used for?

A

Odd number of teeth on sprocket.

19
Q

How are the chain connectors held on?

A

Spring clip or cotter key/pin.

20
Q

Which clip/pin is required for motion in both directions?

A

Cotter key/pin

21
Q

Should you add lube to a self lubricated chain?

22
Q

How are heavy chains different?

A

The link plate is 1 size thicker. In other words, the link plate is the same thickness as the next chain size up.

23
Q

Why would we use heavy chains?

A

When we need more shock load capabilities but have space limitations.

24
Q

How are double pitch chains constructed?

A

Half the rollers, with double the link plate length.

25
Q

Do double pitch chains transmit less load capacity than normal pitch?

26
Q

How do we size double pitch chains?

A

Same as any other chain because the sprocket size is the same, despite the increased pitch.

27
Q

Identify this chain: C20 62H

A

Conveyor
Double Pitch
3/4
Large Roller
Heavy

28
Q

Identify this chain: 600 50H

A

Hardened/Corrosion Resistant
5/8
Heavy

29
Q

Identify this chain: 304 40

A

Stainless
1/2
Standard Weight

30
Q

Identify this chain: 60-3

A

3/4
Standard Weight
3 Strands

31
Q

Identify this chain: 300 35-4

A

Stainless
3/8
Roller less
4 Stranded