| TRAC REGULATORS INC | 55378 |
| TRAC REGULATORS INC | 55378 |
| A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see BEARING, BALL, DUPLEX. Excludes BEARING, BALL, AIRFRAME. |
