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| Bearing Number | Bore Dia | Outer DIa | Width | Size |
|---|---|---|---|---|
| 8-345 NBR90 B 102.31X111.61X1.93 N90 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.438 Inch / 11.125 Millimeter |
| 8-243 NBR90 B 104.92X110.92X1.25 N90 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.359 Inch / 9.119 Millimeter |
| 8-343 NBR90 B 95.83X105.13X1.93 N90 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.276 Inch / 7 Millimeter |
| 8-241 NBR90 B 98.58X104.58X1.25 N90 NBR BACKUP RING | 8 mm | Rubber-covered steel | 0.03 lbs | Straight lip |
| 8-344 NBR90 B 99X108.3X1.5 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.25 Inch / 6.35 Millimeter |
| 8-342 NBR90 B 92.66X101.96X1.93 N90 NBR BACKUP RING | 0.276 in | Steel | 0.05 lbs | Helix-CW from air side |
| 8-240 NBR90 B 95.4X101.4X1.25 N90 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.276 Inch / 7 Millimeter |
| 8-154 NBR90 B 95.71X100.08X1.35 N90 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.812 Inch / 20.625 Millimeter |
| 8-153 NBR90 B 89.36X93.7X1.14 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.394 Inch / 10 Millimeter |
| 8-341 NBR90 B 89.48X98.78X1.5 N90 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.812 Inch / 20.625 Millimeter |
| 8-239 NBR90 B 92.2X98.2X1.25 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.75 Inch / 19.05 Millimeter |
| 8-339 NBR90 B 83.1X92.4X1.5 NBR BACKUP RING | Seal | 31411705 | Oil Seals | 0.719 Inch / 18.263 Millimeter |