Find a Service Center
Boston Gear
F721-30-B5-H
700 Series 30:1 Ratio H Assembly Single Reduction Worm Gear Reducer Without Base
Item #101835126
- 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
- Must be filled to the proper level with the recommended lubricant for your application before operation
| Worm Position | Universal |
| Bolt Center | 5 in x 2 7/8 in |
| Media Mapping Output | H |
| Motor Frame Size | B556C |
| Output Configuration | Left & Right Output |
| Base Mounting Attachment | No Base |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Input Configuration | C-Face Quilled |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Motor Application | General Purpose |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| HP @ RPM | 0.75 hp @ 1800 rpm |
| Housing Material | Cast Iron |
| Center Distance Code | 721 |
| Family Name | F |
| Output (Shaft or Bore) Size | 1 in |
| Series | 700 |
| Box Length | 6 in |
| Box Height | 6 3/8 in |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Box Width | 5 3/16 in |
| Output Bore Shaft Dia. | 1 in |
| Use With | 721 |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Style | Right Angle |
| Torque Out @ 1150 rpm | 795 in lb |
| Output Torque @ RPM | 795 in lb @ 1150 rpm, 871 in lb @ 1750 rpm |
| Material | Cast Iron, Standard Paint |
| Input Power Rating | 0.99 hp, 0.738 kW |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Ratio | 30:1 |
| Output Shaft Projection | Solid Double Projecting Output |
| Fan Cooled | No |
| Washdown Duty | No |
| Center Distance | 2.0625 in |
| Input (Shaft or Bore) Size | 5/8 in |
| Output RPM @ 1750 rpm Input | 58.33 rpm |
| Lubrication | None |
| Media Mapping Style | F |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Output Speed | 58.3 rpm |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Rated Efficiency | 81% |
| Input HP @ RPM | 0.62 hp @ 1150 rpm, 0.99 hp @ 1750 rpm |
| Shaft Assembly Code | H |
| Motor HP | 3/4 hp |
| Output RPM @ Input RPM | 58 rpm @ 1750 rpm |
| Bore Code | B5 |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Standard | AGMA Service Class I |
| Reduction Type | Single |
| Frame Size | 56C |
| Input Motor HP | 1 |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Base to Centerline of Output Shaft | 2.28 in |
| Frame | 56C |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output Torque | 871 lb-in |
| Max. Input HP @ 100 rpm | 0.086 hp |
| Torque Out @ 1750 rpm | 871 in lb |
| Keyway Size | 3/16 x 3/32 |
| Output Shaft | Solid |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Base | No |
| Weight | 24.1 LB |
| EAN or UPC | 781711519707 |
