- Size SM21A Parallel Reducer
- 2.75:1 Ratio
- 140TC Frame
- 7/8" C-Face Quilled Input
- 1 1/8" Parallel Shaft Output
| Box Length | 6 1/8 in |
| Box Height | 9 5/8 in |
| Ratio | 2.75:1 |
| Bolt Centers w/ Std. Base Kit (in) | 5 x 6 1/2 |
| Output (Shaft or Bore) Size | 1 1/8 in |
| Box Width | 7 3/4 in |
| Output Configuration | Parallel Shaft Output |
| Unit Size | SM21A |
| Output RPM @ 1750 rpm Input | 636 rpm |
| Base to Shaft Center Height w/Std. Base Kit | 3 1/2 in |
| Input (Shaft or Bore) Size | 7/8 in |
| Input Configuration | C-Face Quilled |
| Frame | 140TC |
| Weight | 55.0 LB |
| EAN or UPC | 887726176246 |

