Find a Service Center
Boston Gear
721-50-G
700 Series 50:1 Ratio G Assembly Single Reduction Worm Gear Reducer Without Base
Item #101807786
- 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
- Must be filled to the proper level with the recommended lubricant for your application before operation
| Center Distance | 2.0625 in |
| Frame | N/A |
| HP @ RPM | 0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm |
| Media Mapping Output | G |
| Series | 700 |
| Style | Right Angle |
| Fan Cooled | No |
| Max. Input HP @ 100 rpm | 0.057 hp |
| Family Name | Std Unit |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Output Torque | 857 lb-in |
| Use With | 721 |
| Output (Shaft or Bore) Size | 1 in |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Washdown Duty | No |
| Housing Material | Cast Iron |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Worm Position | Universal |
| Output RPM @ 1750 rpm Input | 35 rpm |
| Output Speed | 35 rpm |
| Reduction Type | Single |
| Input (Shaft or Bore) Size | 5/8 in |
| Lubrication | None |
| Rated Efficiency | 72% |
| Output Torque @ RPM | 750 in lb @ 1150 rpm, 857 in lb @ 1750 rpm |
| Bolt Center | 6 3/8 in x 4 11/16 in |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Ratio | 50:1 |
| Output Configuration | Left Output |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output Shaft Projection | Solid Left Output |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Output Shaft | Solid |
| Output Bore Shaft Dia. | 1 in |
| Standard | AGMA Service Class II |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Output RPM @ Input RPM | 35 rpm @ 1750 rpm |
| Input Power Rating | 0.66 hp, 0.492 kW |
| Input HP @ RPM | 0.38 hp @ 1150 rpm, 0.66 hp @ 1750 rpm |
| Frame Size | Shaft Input, Not a C-Face |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Box Height | 6 3/8 in |
| Input Configuration | Shaft Input |
| Box Length | 6 in |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Torque Out @ 1750 rpm | 857 in lb |
| Shaft Assembly Code | G |
| Input Motor HP | 0.50 |
| Center Distance Code | 721 |
| Material | Cast Iron, Standard Paint |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Motor Application | General Purpose |
| Base Mounting Attachment | No Base |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Torque Out @ 1150 rpm | 750 in lb |
| Box Width | 3 13/16 in |
| Weight | 24.1 LB |
| EAN or UPC | 781711517024 |
