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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
| Base Mounting Attachment | No Base |
| Motor Application | General Purpose |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Output RPM @ Input RPM | 35 rpm @ 1750 rpm |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Output Shaft Projection | Solid Left Output |
| Torque Out @ 1750 rpm | 857 in lb |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Box Width | 3 13/16 in |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Input Motor HP | 0.50 |
| Series | 700 |
| Worm Position | Universal |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Input Configuration | Shaft Input |
| Style | Right Angle |
| Housing Material | Cast Iron |
| Rated Efficiency | 72% |
| Shaft Assembly Code | G |
| Fan Cooled | No |
| Torque Out @ 1150 rpm | 750 in lb |
| HP @ RPM | 0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Family Name | Std Unit |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Center Distance Code | 721 |
| Frame Size | Shaft Input, Not a C-Face |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output Configuration | Left Output |
| Output Shaft | Solid |
| Reduction Type | Single |
| Output (Shaft or Bore) Size | 1 in |
| Box Height | 6 3/8 in |
| Output Torque @ RPM | 750 in lb @ 1150 rpm, 857 in lb @ 1750 rpm |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Media Mapping Output | G |
| Washdown Duty | No |
| Center Distance | 2.0625 in |
| Material | Cast Iron, Standard Paint |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Input HP @ RPM | 0.38 hp @ 1150 rpm, 0.66 hp @ 1750 rpm |
| Output Torque | 857 lb-in |
| Input (Shaft or Bore) Size | 5/8 in |
| Bolt Center | 6 3/8 in x 4 11/16 in |
| Standard | AGMA Service Class II |
| Max. Input HP @ 100 rpm | 0.057 hp |
| Use With | 721 |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Box Length | 6 in |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Output RPM @ 1750 rpm Input | 35 rpm |
| Ratio | 50:1 |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Input Power Rating | 0.66 hp, 0.492 kW |
| Output Bore Shaft Dia. | 1 in |
| Output Speed | 35 rpm |
| Lubrication | None |
| Frame | N/A |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Weight | 24.1 LB |
| EAN or UPC | 781711517024 |
