Engineering Materials for Agricultural Machines Quiz
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Questions and Answers

What is the rated life L10 of a bearing?

  • The maximum load a bearing can withstand before failure
  • The number of revolutions or hours at a given constant speed that 90 percent of an apparently identical group of bearings will complete or exceed before the first evidence of fatigue develops (correct)
  • The total number of revolutions a bearing can endure before replacement is necessary
  • The average lifespan of a bearing under normal operating conditions

What is the basic dynamic load rating C of a ball bearing?

  • The minimum load requirement for a ball bearing to function properly
  • The maximum load capacity of a ball bearing
  • The radial load that a ball bearing can withstand for one million revolutions of the inner ring (correct)
  • The load limit for a ball bearing under normal operating conditions

What is the equivalent dynamic load P for a bearing?

  • The total load capacity of a bearing under all operating conditions
  • The average load experienced by a bearing during its rated life L10
  • Constant stationary radial load which, if applied to a bearing with rotating inner ring and stationary outer ring, would give the same life as that which the bearing will attain under the actual conditions of load and rotation (correct)
  • The maximum load a bearing can withstand before deformation occurs

What is a radial load?

<p>Load or force passing through the axis of rotation (C)</p> Signup and view all the answers

What is the most significant advantage of anti-friction bearings?

<p>The starting friction is not very much larger than the operating friction (B)</p> Signup and view all the answers

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