Rexnord Thomas DBZ disc couplings are legacy general purpose high-speed, high-torque couplings. Typical applications include mixers, compressors, agitators, blowers & fans, centrifugal pumps, and conveyors. DBZ couplings are available in three configurations to maximize application flexibility:DBZ: Both hubs are inverted inside the disc pack for minimal shaft-to-shaft spacingDBZ-A: One hub is extended to accommodate taper bores and larger shaft gapsDBZ-B: Both hubs are extended for maximum shaft-to-shaft spacingDBZ couplings are available in 13 sizes ranging from size 50 through 451, and are designed to accommodate maximum continuous torque loads up to 43,400 (lb-in) and shaft diameters up to 4.63 inches.
| Applicable Materials | Alloy Steel, Carbon Steel and Cast Iron |
| Cutting Depth | 5XD |
| Cutting Direction | Left Hand |
| Cutting Edge Material | HSS |
| Drill Diameter Measurement System | Imperial |
| Drill Size - Decimal Inch | 0.055 in |
| Drill Size - Wire | #54 |
| Finish | Bright |
| Flute Length | 7/8 in |
| Flute Type | Left Spiral |
| Material | HSS |
| Number of Flutes | 2 |
| Overall Length | 1-7/8 in |
| Point Angle | 118 deg |
| Point Type | Radial |
| Series | 150L |
| Shank Size | 0.055 in Dia x 1 in L |
| Shank Type | Straight |
| Style | 150L |
| Surface Condition | Bright |
| Through Coolant (Yes/No) | No |
| Tool Size | #54 |