Three bearings have respective film arcs of 120°, 180°, and 360°. The diameter is 62 mm and length is 100 mm. Speed= 1200 rpm, r/c ratio is 1000, and load is 1.4 MPa of the projected journal area. SAE 10 oil is used. Find the film temperature for each bearing if the minimum film thickness is 0.015 mm. This problem illustrates the fact that, when the angle is reduced, the bearing must be operated at a lower temperature if the film thickness is to be maintained.
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