Heavy Duty Clamp-Type Shaft Collars
These feature a larger cross-section, greater width, and bigger clamp screws to provide far greater axial and torsional holding power than standard size collars.
| STAFFORD HEAVY-DUTY CLAMP-TYPE SHAFT COLLARS - ONE PIECE- TWO PIECE STEEL | |||||||
| BORE SIZE | DIMENSIONS | ONE PIECE STEEL | TWO PIECE STEEL | ||||
| Inches | O.D. | Width | Screw | Old Stafford | New Stafford | Old Stafford | New Stafford |
| Part No. | Part No. | Part No. | Part No. | ||||
| 1 | 2-1/4 | 5/8 | 5/16-24 | HD16L | 1L100HD | HDSPL 16L | 2L100HD |
| 1-1/8 | 2-3/8 | 5/8 | 1L102HD | 2L102HD | |||
| 1-3/16 | 2-3/8 | 5/8 | 1L103HD | 2L103HD | |||
| 1-1/4 | 2-1/2 | 5/8 | 1L104HD | 2L104HD | |||
| 1-3/8 | 2-3/4 | 5/8 | 1L106HD | 2L106HD | |||
| 1-7/16 | 2-3/4 | 5/8 | 1L107HD | 2L107HD | |||
| 1-1/2 | 2-3/4 | 5/8 | 5/16-24 | HD24L | 1L108HD | HDSPL 24L | 2L108HD |
| 1-11/16 | 3-1/4 | 3/4 | 1L111HD | 2L111HD | |||
| 1-3/4 | 3-1/4 | 3/4 | 1L112HD | 2L112HD | |||
| 1-15/16 | 3-1/2 | 3/4 | 1L115HD | 2L115HD | |||
| 2 | 3-1/2 | 3/4 | 5/16-24 | HD32L | 1L200HD | HDSPL 32L | 2L200HD |
| 2-3/16 | 3-3/4 | 3/4 | 1L203HD | 2L203HD | |||
| 2-1/4 | 3-3/4 | 3/4 | 1L204HD | 2L204HD | |||
| 2-7/16 | 4-1/4 | 1 | 1L207HD | 2L207HD | |||
| 2-1/2 | 4-1/4 | 1 | 1L208HD | 2L208HD | |||
| 2-15/16 | 4-3/4 | 1 | 1L215HD | 2L215HD | |||
| 3 | 4-3/4 | 1 | 1L300HD | 2L300HD | |||
| 3-1/4 | 5 | 1 | 1L304HD | 2L304HD | |||
| 3-1/2 | 5-1/4 | 1 | 1L308HD | 2L308HD | |||
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