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5 marksSeals and Lubricants

CAPE Building and Mechanical Engineering Drawing Unit 2 · 2016 · Paper 2 · Question 4(b)

With the aid of a freehand sketch, illustrate the process of pressurized lubrication by means of a lip seal.

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Other parts of this question

  1. 4(a)Draw sectional views to illustrate any THREE of the specified methods for lubricating bearing surfaces.[6 marks]
  2. 4(c)Give TWO side effects of over-lubrication of bearings.[2 marks]
  3. 4(d)Draw diagrams to illustrate the use of TWO of the following typical ball bearings: (i) Radial, (ii) Thrust, (iii) Angular.[4 marks]
  4. 4(e)State THREE factors that should be considered when designing bearing lubrication.[3 marks]

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