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6.1 'n Regtutdrat, met 'n steeksirkeldiameter van 165 mm en 110 tande, word vir 'n rattkas benodig - NSC Mechanical Technology Fitting and Machining - Question 6 - 2022 - Paper 1

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6.1-'n-Regtutdrat,-met-'n-steeksirkeldiameter-van-165-mm-en-110-tande,-word-vir-'n-rattkas-benodig-NSC Mechanical Technology Fitting and Machining-Question 6-2022-Paper 1.png

6.1 'n Regtutdrat, met 'n steeksirkeldiameter van 165 mm en 110 tande, word vir 'n rattkas benodig. Bereken die volgende: 6.1.1 Module. 6.1.2 Buitediameter. 6.2 ... show full transcript

Worked Solution & Example Answer:6.1 'n Regtutdrat, met 'n steeksirkeldiameter van 165 mm en 110 tande, word vir 'n rattkas benodig - NSC Mechanical Technology Fitting and Machining - Question 6 - 2022 - Paper 1

Step 1

6.1.1 Module.

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Answer

To calculate the module (SSD), we can use the formula:

ext{Module} = rac{ ext{SSD}}{T} = rac{165}{110} = 1,5

Thus, the module is 1,5.

Step 2

6.1.2 Buitediameter.

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Answer

The outer diameter (BD) can be calculated using the formula:

extBD=extSSD+2(m)=165+2(1,5)=168extmm ext{BD} = ext{SSD} + 2(m) = 165 + 2(1,5) = 168 ext{ mm}

Therefore, the outer diameter is 168 mm.

Step 3

6.2.1 Maksimum wyte (W) van die swaelstert.

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Answer

To find the maximum width (W) of the counter, we use:

W=120+2(DE)W = 120 + 2(DE)

If we calculate DE:

DE=an30ext°imesAD=17,32extmmDE = an 30^ ext{°} imes AD = 17,32 ext{ mm}

Thus, substituting DE:

W=120+2(17,32)=154,64extmmW = 120 + 2(17,32) = 154,64 ext{ mm}

Step 4

6.2.2 Afstand (m) tussen die presisirollers.

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Answer

To find the distance (m) between the rollers, we calculate:

m=W−2(AC)−2(R)m = W - 2(AC) - 2(R)

Assuming we have calculated AC as:

AC=19,05extmmAC = 19,05 ext{ mm}

Then substituting:

m=154,64−(2(19,05)+2(11))=94,54extmmm = 154,64 - (2(19,05) + 2(11)) = 94,54 ext{ mm}

Step 5

6.3.1 Bereken die indeksering wat benodig word.

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Answer

The scoring can be calculated by:

ext{Indekering} = rac{n}{40} = rac{40}{163}

Thus, simplifying gives:

ext{Indekering} = rac{6}{24}

Step 6

6.3.2 Bereken die wisselratte wat benodig word.

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Answer

Using the formula for the gear ratio:

G_d = rac{(A - n) imes 40}{A}

Substituting A yields:

G_d = - rac{3 imes 40}{160} = -120

Step 7

6.4 Noem TWEE tipe balanseermetodes.

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Answer

  1. Statiese balanseering (still balancing).
  2. Dinamiese balanseering (running balancing).

Step 8

6.5 Noem TWEE voordeel van korrekte balasering.

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Answer

  1. Prevents weak finishing or ensures better finishing.
  2. Improves productivity and accuracy.

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