Boston Gear F721-5-B7-G WORM SPEED REDUCER
700 Series 5:1 Ratio G Assembly Single Reduction Worm Gear Reducer Without Base
| Output Configuration | Left Output |
| Style | Right Angle |
| Motor Frame Size | B7140TC180C |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Base to Shaft Center Height w/Vert. “J” Base Kit | 3.94 in |
| Frame | 140TC, 180C |
| Input Power Rating | 3.66 hp, 2.729 kW |
| Fan Cooled | No |
| Output Speed | 350 rpm |
| Washdown Duty | No |
| Series | 700 |
| Base to Centerline of Output Shaft | 2.28 in |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Bore Code | B7 |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Material | Cast Iron, Standard Paint |
| Family Name | F |
| HP @ RPM | 3 hp @ 1800 rpm |
| Rated Efficiency | 94% |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Housing Material | Cast Iron |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Output Torque | 620 lb-in |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Frame Size | 140TC, 180C |
| Shaft Assembly Code | G |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Input HP @ RPM | 2.33 hp @ 1150 rpm, 3.66 hp @ 1750 rpm |
| Output RPM @ Input RPM | 350 rpm @ 1750 rpm |
| Base | No |
| Worm Position | Universal |
| Max. Input HP @ 100 rpm | 0.3 hp |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Output Torque @ RPM | 575 in lb @ 1150 rpm, 620 in lb @ 1750 rpm |
| Base Mounting Attachment | No Base |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Bolt Center | 5 in x 2 7/8 in |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Use With | 721 |
| Box Height | 6 3/8 in |
| Box Length | 6 in |
| Torque Out @ 1150 rpm | 575 in lb |
| Media Mapping Style | F |
| Input (Shaft or Bore) Size | 7/8 in |
| Ratio | 5:1 |
| Media Mapping Output | G |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Output Shaft | Solid |
| Center Distance | 2.0625 in |
| Bolt Centers w/ Vertical “J” Base Kit (in) | 8.63 x 2.63 |
| Input Motor HP | 2 |
| Output Bore Shaft Dia. | 1 in |
| Reduction Type | Single |
| Motor HP | 2 hp |
| Output (Shaft or Bore) Size | 1 in |
| Output Shaft Projection | Solid Left Output |
| Input Configuration | C-Face Quilled |
| Box Width | 5 3/16 in |
| Lubrication | None |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Torque Out @ 1750 rpm | 620 in lb |
| Motor Application | General Purpose |
| Output RPM @ 1750 rpm Input | 350 rpm |
| Standard | AGMA Service Class II |
| Center Distance Code | 721 |
| Weight | 24.1 LB |
| EAN or UPC | 781711519516 |









