Find a Service Center
Boston Gear
F7721-50-B5-G
700 Series 50:1 Ratio G Assembly Single Reduction Worm Gear Reducer Without Base
Item #101805906
- 0.5 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
- Mounting of speed reducers in overhead positions may be hazardous
- Use of external guides or supports is strongly recommended for overhead mounting.
| Output Bore Shaft Dia. | 1 in |
| Torque Out @ 1150 rpm | 750 in lb |
| Box Length | 6 in |
| Shaft Assembly Code | G |
| Material | Cast Iron, Standard Paint |
| Style | Right Angle |
| Motor Frame Size | B556C |
| Worm Position | Universal |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output Shaft | Solid |
| Torque Out @ 1750 rpm | 857 in lb |
| Ratio | 50:1 |
| Fan Cooled | No |
| Use With | 721 |
| Base Mounting Attachment | No Base |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Rated Efficiency | 72% |
| Bore Code | B5 |
| Input (Shaft or Bore) Size | 5/8 in |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Output Configuration | Left Output |
| Max. Input HP @ 100 rpm | 0.057 hp |
| Family Name | F |
| Center Distance Code | 721 |
| HP @ RPM | 0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Input Configuration | C-Face Quilled |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Motor Application | General Purpose |
| Box Height | 6 3/8 in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Washdown Duty | No |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Input HP @ RPM | 0.38 hp @ 1150 rpm, 0.66 hp @ 1750 rpm |
| Frame | 56C |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Frame Size | 56C |
| Media Mapping Output | G |
| Base | No |
| Reduction Type | Single |
| Series | 700 |
| Center Distance | 2.0625 in |
| Lubrication | None |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Box Width | 5 3/16 in |
| Bolt Center | 5 in x 2 7/8 in |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output Speed | 35 rpm |
| Standard | AGMA Service Class II |
| Output (Shaft or Bore) Size | 1 in |
| Output RPM @ Input RPM | 35 rpm @ 1750 rpm |
| Base to Centerline of Input Shaft | 4.34375 in |
| Input Motor HP | 0.50 |
| Output RPM @ 1750 rpm Input | 35 rpm |
| Motor HP | 1/2 hp |
| Housing Material | Cast Iron |
| Media Mapping Style | F |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Output Torque @ RPM | 750 in lb @ 1150 rpm, 857 in lb @ 1750 rpm |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Output Torque | 857 lb-in |
| Input Power Rating | 0.66 hp, 0.492 kW |
| Base to Centerline of Output Shaft | 2.28 in |
| Output Shaft Projection | Solid Left Output |
| Weight | 24.1 LB |
| EAN or UPC | 781711519752 |
