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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.
| Material | Cast Iron, Standard Paint |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Input HP @ RPM | 0.62 hp @ 1150 rpm, 0.99 hp @ 1750 rpm |
| Ratio | 30:1 |
| Media Mapping Output | H |
| Housing Material | Cast Iron |
| Family Name | Std Unit |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Frame | N/A |
| Input Motor HP | 1 |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Input Configuration | Shaft Input |
| Motor Application | General Purpose |
| Output Bore Shaft Dia. | 1 in |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Center Distance Code | 721 |
| Frame Size | Shaft Input, Not a C-Face |
| Output Shaft | Solid |
| Output Torque | 871 lb-in |
| Output Torque @ RPM | 795 in lb @ 1150 rpm, 871 in lb @ 1750 rpm |
| Shaft Assembly Code | H |
| Output Speed | 58.3 rpm |
| Use With | 721 |
| Box Length | 6 in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Base Mounting Attachment | No Base |
| Box Height | 6 3/8 in |
| Output (Shaft or Bore) Size | 1 in |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Washdown Duty | No |
| Output RPM @ Input RPM | 58 rpm @ 1750 rpm |
| Box Width | 3 13/16 in |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Output Configuration | Left & Right Output |
| Input (Shaft or Bore) Size | 5/8 in |
| Output Shaft Projection | Solid Double Projecting Output |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Torque Out @ 1750 rpm | 871 in lb |
| Series | 700 |
| Reduction Type | Single |
| Worm Position | Universal |
| Rated Efficiency | 81% |
| Fan Cooled | No |
| Bolt Center | 6 3/8 in x 4 11/16 in |
| Lubrication | None |
| HP @ RPM | 0.75 hp @ 1800 rpm |
| Style | Right Angle |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Torque Out @ 1150 rpm | 795 in lb |
| Center Distance | 2.0625 in |
| Input Power Rating | 0.99 hp, 0.738 kW |
| Standard | AGMA Service Class I |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Output RPM @ 1750 rpm Input | 58.33 rpm |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Max. Input HP @ 100 rpm | 0.086 hp |
| Weight | 24.1 LB |
| EAN or UPC | 781711516973 |
