The minimum life of the bearing is the life which 90% of the bearings will reach or exceed before fatigue failure. Select one: True False
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Q: Identify the term which is meant for 107 during fatigue testing. a. Rating life b. Infinite number…
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Q: True
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Q: What is the bore diameter of a ball bearing having bearing number 6310? 50 mm 40 mm 10 mm 12 mm
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Q: What is the bore diameter of a ball bearing having bearing number 6301? Select one 12 mm 10 mm 5…
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Q: What is the bore diameter of a ball bearing having bearing number 6301? 1 mm 12 mm 5 mm 10 mm
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- The minimum bearing life is the life that 10% of bearings will achieve or exceed before they fail due to fatigue. Select one: True Falseis defined as the number of revolutions that 90 per cent of a group of bearings will complete before the first evidence of fatigue develops Select one: O a. Life of the bearing Ob. Rating life Axial Load Od. Total load hpRolling contact bearings are also known as anti-friction bearings. Select one: True False
- A. PROBLEM ON TOPIC "KEYS AND COUPLINGS": A coupling with material AISI C1045 as rolled transmits 65.5 HP at 1750 rpm. The material of the 1.75 inch shaft... is also AISI C1045 as rolled and the key is cold drawn AISI C1020. N= 2.5. Determine the following: 1. Size of bolt (dia.) if there are 6 bolts made of AISI C1045 as rolled at a bolt circle of 5 inches. Note: Select standard bolt diameter from AT14 of DOME by Faires (see Lecture on fasteners for this Table) Calculated Dia: Standard Size to use: 2. Required b and t if a flat or rectangular key is used: Answer: 3. Required length of key, if a flat or rectangular key is used: Note: Calculate for two type of stresses on key, then select your answer. Length Based on shear length Based on compression: Length to use: 4. Required bif a square key is used: Answer: 5. Required length of key, if a square key is used: Note: Calculate for two type of stresses on kev, then select your answer. Length Based on shear length Based on compression:…Identify the term which is meant for 107 during fatigue testing. a. Rating life b. Infinite number of cycles c. Life in working hours d. The life of an individual ball bearingThe average bearing life is the life that 90% of bearings will achieve or exceed before they fail due to fatigue. Select one: O True O False
- Question 3 The design of journal bearings usually involves two suitable combinations of variables: variables under control and dependent variables or performance factors. As such, a full journal bearing has a shaft journal diameter of 27 mm with a unilateral tolerance of 20.01 mm. The bushing bore has a diameter of 27.04 mm with a unilateral tolerance of 0.03 mm. The //d ratio is unity. The bushing load is 1.03 kN, and the journal rotates at 1153 rev/min. You are required to analyze the minimum clearance assembly if the average viscosity is 50 mPa.s to find the minimum oil film thickness, the power loss, and the percentage of side flow.The rated life (L10 life) of a group of apparently identical ball bearings is that group the actual life of an individual ball bearing in none of the above more than equal to less thanof life. The life of the bearing, in hours, when the A ball bearing operating at a load Fhas 8000 hours t life The life of the bearing, in hours, when the load is doubled to 2Fis (a) 8000 (c) 4000 (b) 6000 (d) 1000
- Select a single row deep groove ball bearing with the operating cycle listed below, which will have a life of 15 000 hours. Fraction of cycle Type of load Radial Thrust Speed (R.P.M.) Service factor (N) (N) 3/10 Heavy shocks 2000 1000 200 3.0 4/10 Light shocks 1000 1000 200 1.5 3/10 Moderate shocks 2000 2000 100 2.0 Assume radial and axial load factors to be 1.0 and 1.5 respectively and inner race rotates.....A roller bearing is subjected to an equivalent dynamic load of 1200 N. If the rating life is 25 x 106 revolutions, which of the following is its dynamic load rating? Group of answer choices 5483 N 3000 N 3152 N 3509 NWhich one is defined as the ratio of the number of bearings which have successfully completed L' million revolutions to the total number of bearings under test. Select one: O a. Failure rate O b. Life of bearing Reliability Od. Efficiency