Find a Service Center
Boston Gear
F721-5-B7-G
700 Series 5:1 Ratio G Assembly Single Reduction Worm Gear Reducer Without Base
Item #101810905
- 2 Input Motor hp
- 700 Series
- 2.06 in Center Distance
- Single Reduction
description
- Our standard 700 Series - the heart of Boston Gear's speed reducer product line - has been serving many industries reliably for over 40 years. Its proven modular design has set the industry standard for performance and is the most imitated product in today's worm gear speed reducer market.
features
- Large oil reservoir provides efficient heat dissipation and lubrication for longer life
- Housing is straddle milled top and bottom for precise alignment
- Internal baffles ensure positive, leak-free venting
- Rugged housing fabricated of fine-grained cast iron for maximum strength and greater precision during worm and gear alignment
- Bronze worm gear is straddle mounted between heavy-duty tapered roller bearings to increase thrust and load capacities on size 713 to 760
- High strength steel output shaft ensures capacity for high torque
- Pipe plugs allow easy fill, level and drain in any mounting position
- Super finished oil seal diameters on both input and output shafts extend seal life
caution
- Must be filled to the proper level with the recommended lubricant for your application before operation
| Base Mounting Attachment | No Base |
| Motor HP | 2 hp |
| Input Configuration | C-Face Quilled |
| Frame | 140TC, 180C |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Reduction Type | Single |
| Box Length | 6 in |
| Torque Out @ 1750 rpm | 620 in lb |
| Motor Frame Size | B7140TC180C |
| Lubrication | None |
| Box Width | 5 3/16 in |
| Output Torque | 620 lb-in |
| Use With | 721 |
| Bolt Center | 5 in x 2 7/8 in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Input Power Rating | 3.66 hp, 2.729 kW |
| Bore Code | B7 |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Output (Shaft or Bore) Size | 1 in |
| Output Shaft Projection | Solid Left Output |
| Media Mapping Style | F |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Max. Input HP @ 100 rpm | 0.3 hp |
| Output Shaft | Solid |
| Output RPM @ 1750 rpm Input | 350 rpm |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Base to Centerline of Output Shaft | 2.28 in |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Motor Application | General Purpose |
| Torque Out @ 1150 rpm | 575 in lb |
| Output Torque @ RPM | 575 in lb @ 1150 rpm, 620 in lb @ 1750 rpm |
| Ratio | 5:1 |
| Housing Material | Cast Iron |
| Input HP @ RPM | 2.33 hp @ 1150 rpm, 3.66 hp @ 1750 rpm |
| Material | Cast Iron, Standard Paint |
| Series | 700 |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Input Motor HP | 2 |
| Center Distance Code | 721 |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Output Configuration | Left Output |
| Media Mapping Output | G |
| Shaft Assembly Code | G |
| Base | No |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Input (Shaft or Bore) Size | 7/8 in |
| Family Name | F |
| Worm Position | Universal |
| Output RPM @ Input RPM | 350 rpm @ 1750 rpm |
| Box Height | 6 3/8 in |
| Center Distance | 2.0625 in |
| Style | Right Angle |
| Standard | AGMA Service Class II |
| Frame Size | 140TC, 180C |
| Rated Efficiency | 94% |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| HP @ RPM | 3 hp @ 1800 rpm |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Fan Cooled | No |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Output Speed | 350 rpm |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Washdown Duty | No |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Output Bore Shaft Dia. | 1 in |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Weight | 24.1 LB |
| EAN or UPC | 781711519516 |
