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Boston Gear
F721-20-B5-H
700 Series 20:1 Ratio H Assembly Single Reduction Worm Gear Reducer Without Base
Item #101809817
- 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
| Input Motor HP | 1 |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Family Name | F |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Output RPM @ 1750 rpm Input | 87.5 rpm |
| Ratio | 20:1 |
| Output Shaft | Solid |
| Max. Input HP @ 100 rpm | 0.11 hp |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Torque Out @ 1750 rpm | 892 in lb |
| Output Bore Shaft Dia. | 1 in |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Box Width | 5 3/16 in |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Base to Centerline of Output Shaft | 2.28 in |
| Base | No |
| Center Distance | 2.0625 in |
| Media Mapping Output | H |
| Output (Shaft or Bore) Size | 1 in |
| Motor Application | General Purpose |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Box Height | 6 3/8 in |
| Fan Cooled | No |
| Input Power Rating | 1.4 hp, 1.044 kW |
| Motor HP | 1 hp |
| Output Torque @ RPM | 782 in lb @ 1150 rpm, 892 in lb @ 1750 rpm |
| Reduction Type | Single |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Washdown Duty | No |
| Input (Shaft or Bore) Size | 5/8 in |
| HP @ RPM | 1 hp @ 1800 rpm |
| Use With | 721 |
| Keyway Size | 3/16 x 3/32 |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Bolt Center | 5 in x 2 7/8 in |
| Worm Position | Universal |
| Frame | 56C |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Torque Out @ 1150 rpm | 782 in lb |
| Rated Efficiency | 88% |
| Lubrication | None |
| Bore Code | B5 |
| Input HP @ RPM | 0.86 hp @ 1150 rpm, 1.4 hp @ 1750 rpm |
| Output Torque | 892 lb-in |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output Shaft Projection | Solid Double Projecting Output |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Style | Right Angle |
| Housing Material | Cast Iron |
| Standard | AGMA Service Class II |
| Output Configuration | Left & Right Output |
| Series | 700 |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Media Mapping Style | F |
| Output Speed | 87.5 rpm |
| Frame Size | 56C |
| Box Length | 6 in |
| Base Mounting Attachment | No Base |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Input Configuration | C-Face Quilled |
| Material | Cast Iron, Standard Paint |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Center Distance Code | 721 |
| Motor Frame Size | B556C |
| Shaft Assembly Code | H |
| Weight | 24.1 LB |
| EAN or UPC | 781711519646 |
