Chain Drives Flashcards

1
Q

How are chain drives operated?

A

With tension (teeth on driving sprocket engage chain)

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2
Q

How many theeth are required for effective engagement?

A

Only a few

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3
Q

Advantages of chain drives?

A

can easily be cut to length

Available in limitless different variations

Positive engagement - No slipping between driving and driven shaft

Flexibility

Long operating life

Operate in hostile environments

Unlimited shelf life

Can replace without disturbing the equipment

Can handle large HP loads and large speeds

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4
Q

Disadvantages of chain drives?

A

Higher operating noise levels then belts

Will eventually wear out and potential for chain to stretch

Lower speeds then belts

Have to change sprocket with the chain

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5
Q

What does pin link plate connect?

A

Outside plate connects pins together

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6
Q

What does roller link plate connect?

A

Roller to roller

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7
Q

What is pitch?

A

Center line of pin to center line of next pin

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8
Q

The larger the pitch is relation to what?

A

Larger link size and higher load rating but slower speeds

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9
Q

Smaller the pitch is related to what?

A

Less load more speed quite operations

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10
Q

What is a multi strand small pitch chain used for?

A

High speed high load

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11
Q

What locking device does a master link use?

A

Spring clip ( closed end towards rotation)

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12
Q

What locking device does a half link use?

A

Cotter pin (long side bended at 45)

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13
Q

Do self lube roller chains need lubricant?

A

No will wash out the lube that is already there

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14
Q

How do you know it’s heavy chain?

A

Link plate thickness equal to next size larger.

Bigger diameter pin equal to next size bigger of chain

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15
Q

Where do you use heavy chain?

A

Space and weight limitations prohibit the use of larger size.

Also has higher working load rating and withstand higher shock loads

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16
Q

What is significant about double pitch roller chains?

A

Same as standers roller chain except pitch is doubled making it lighter and cheaper.

Suitable for long center distance applications

17
Q

What does 0 stand for in chain identification?

A

Standard chain

18
Q

What does 1 stand for in chain identification?

A

Light weight

19
Q

What does 2 stand for in chain identification?

A

Big roller

20
Q

What does 5 stand for in chain identification?

A

Roller less

21
Q

-#- stand for?

A

How many strands / multi strand

22
Q

H - stand for in chain identification?

A

Heavy

23
Q

35

A

3/8 “ pitch roller less

24
Q

41

A

1/2” pitch lightweight

25
Q

50

A

5/8” pitch standard

26
Q

30060

A

Stainless 3/4 standard

27
Q

60040H

A

Zink or nickel 1/2” pitch Heavy

28
Q

C2082H

A

Conveyor double pitch 1” big roller Heavy

29
Q

50-4

A

5/8” pitch standard 4 strand