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747-400 MAINTENANCE MANUAL
D. Procedure - Bearing Rotational Torque on Spherical Bearing Check S 226-016
(1) To do the rotational preload torque checks, measure the torque necessary to turn one race with the other race held.
NOTE: The bearing must not have lubricants or other contamination.
____
NOTE: Measure the breakaway torque before you do the rotational
____ torque checks. For rotational torque tests, you must turn the bearing through two or three full turns immediately before you measure the torque. Do the tests at room temperature.
NOTE: See Table 601 for permitted rotational preload torque
____
values.
NOTE: Some part numbers in Table 601 have more than one bearing
____ I.D.
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747-400 MAINTENANCE MANUAL
~............................................................................... | BEARING PERMITTED LIMITS FOR ROTATIONAL PRELOAD TORQUE - TABLE 601 | ................................................................................. | SELF-LUBRICATED SPHERICAL BEARINGS | ................................................................................. | Part Number | Bearing | Torque | Part Number | Bearing | Torque | | | ID | Lb-In. | | ID | Lb-In. | .................................................................................
| 10-60545-100 | 0.2500 | 1 to 5 | 10-60545-130 | 0.7500 | 2 to 6 |
| 10-60545-101 | 0.3125 | 1 to 5 | 10-60545-134 | 1.3765 | 20 to 60 |
| 10-60545-102 | 0.3750 | 1 to 5 | | 1.3745 | |
| 10-60545-103 | 0.4375 | 1 to 5 | 10-60545-135 | 0.7500 | 1 to 5 |
| 10-60545-104 | 0.5000 | 1 to 5 | 10-60545-136 | 0.2500 | 1 to 8 |
| 10-60545-105 | 0.5625 | 1 to 5 | 10-60545-137 | 1.2500 | 20 to 60 |
| 10-60545-106 | 0.6250 | 1 to 5 | 10-60545-138 | 2.5003 | 40 to 60 |
| 10-60545-107 | 0.7500 | 1 to 5 | | 2.4994 | |
| 10-60545-108 | 0.8750 | 2 to 6 | 10-60545-143 | 3.5000 | 20 to 60 |
| 10-60545-109 | 1.0000 | 2 to 6 | 10-60545-144 | 0.5000 | 1 to 5 |
| 10-60545-110 | 0.1900 | 5 to 15 | 10-60545-145 | 1.5630 | 5 to 15 |
| 10-60545-122 | 0.2500 | 3 to 9 | 10-60545-147 | 1.0000 | 2 to 6 |
| 10-60545-123 | 0.7500 | 40 to 80 | 10-60545-148 | 0.875 | 1 to 8 |
| 10-60545-124 | 1.2500 | 20 to 60 | 10-60545-149 | 0.625 | 0.5 to 5 |
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