| Assembly | BM-D |
| Center Distance | 1.8 In. |
| Center distance (in) | 1.75 |
| Center Distance Range | 1" thru 3.25" |
| Gear Drive Reductions, No. of Gear Reductions, Reducer Type | Single |
| Gear Type | Worm |
| Height (in) | 10.50 |
| Housing material | Cast iron |
| HP Range | 1 to 1-1/2 ( |
| Input Bore (C Face), Input Diameter (in) | 0.625 |
| Input Flange, Motor Frame Size, Size | 56C |
| Input HP | 1.239 |
| Input HP, Input HP @ 1750 RPM | 1.625 |
| Input RPM | 1750, 1170 |
| Input Style | Flexible Coupling Input, 3-Piece Coupled |
| Keyway | 3/16 X 3/32 |
| Length (in) | 10.69 |
| Max OHL (Output Shaft), Overhung Load | 1200 |
| Max Thrust Load (Output Shaft) | 976 |
| Model Code | BM818 |
| Mounting Style | Base |
| Output | Left & Right |
| Output Diameter (in) | 0.875 |
| Output HP | 1.466 |
| Output Key | 3/16 X 1.38 |
| Output RPM | 175 |
| Output Shaft Assembly Code, Output Style | D |
| Output Shaft Direction | Double |
| Output Shaft Orientation | LR |
| Output Torque | 528 |
| Output Torque (lb-in) | 592 |
| Output Torque Range | 500 to 1000 in lbs |
| Output type | Solid Shaft |
| Paint/Coating | Blue |
| Product Line, Series | GR Series - Ironman Worm Gear Reducers |
| Product Type | Worm Speed Reducer |
| Ratio | 10 to 1 |
| Ratio Range | 10-1 |
| Reducer, Reducer Style | Worm - Right Angle |
| Series Code | GR |
| Series Style | GR-BM-D |
| Series Type | Cast Iron 800 Worm Gear Reducers |
| Service Factor | 1 |
| Shaft Seal Material | Viton |
| Width (in) | 9.06 |