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Boston Gear
721-30-H
700 Series 30:1 Ratio H Assembly Single Reduction Worm Gear Reducer Without Base
Item #101808993
- 1 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
- Use of external guides or supports is strongly recommended for overhead mounting.
| HP @ RPM | 0.75 hp @ 1800 rpm |
| Box Height | 6 3/8 in |
| Base Mounting Attachment | No Base |
| Ratio | 30:1 |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Frame | N/A |
| Box Width | 3 13/16 in |
| Input (Shaft or Bore) Size | 5/8 in |
| Torque Out @ 1150 rpm | 795 in lb |
| Output RPM @ 1750 rpm Input | 58.33 rpm |
| Worm Position | Universal |
| Output Torque @ RPM | 795 in lb @ 1150 rpm, 871 in lb @ 1750 rpm |
| Input Configuration | Shaft Input |
| Bolt Center | 6 3/8 in x 4 11/16 in |
| Output (Shaft or Bore) Size | 1 in |
| Material | Cast Iron, Standard Paint |
| Output Torque | 871 lb-in |
| Center Distance | 2.0625 in |
| Use With | 721 |
| Output Bore Shaft Dia. | 1 in |
| Frame Size | Shaft Input, Not a C-Face |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Family Name | Std Unit |
| Output Shaft Projection | Solid Double Projecting Output |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Box Length | 6 in |
| Motor Application | General Purpose |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Washdown Duty | No |
| Max. Input HP @ 100 rpm | 0.086 hp |
| Center Distance Code | 721 |
| Output Shaft | Solid |
| Reduction Type | Single |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Housing Material | Cast Iron |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Output Speed | 58.3 rpm |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Lubrication | None |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Style | Right Angle |
| Shaft Assembly Code | H |
| Fan Cooled | No |
| Input Power Rating | 0.99 hp, 0.738 kW |
| Output RPM @ Input RPM | 58 rpm @ 1750 rpm |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Input HP @ RPM | 0.62 hp @ 1150 rpm, 0.99 hp @ 1750 rpm |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Output Configuration | Left & Right Output |
| Media Mapping Output | H |
| Series | 700 |
| Standard | AGMA Service Class I |
| Input Motor HP | 1 |
| Torque Out @ 1750 rpm | 871 in lb |
| Rated Efficiency | 81% |
| Weight | 24.1 LB |
| EAN or UPC | 781711516973 |
