Find a Service Center
Boston Gear
F721-25-B5-H
700 Series 25:1 Ratio H Assembly Single Reduction Worm Gear Reducer Without Base
Item #101872172
- 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
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Keyway Size | 3/16 x 3/32 |
| Frame | 56C |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Output Bore Shaft Dia. | 1 in |
| Input Configuration | C-Face Quilled |
| Output Torque @ RPM | 790 in lb @ 1150 rpm, 875 in lb @ 1750 rpm |
| Media Mapping Style | F |
| HP @ RPM | 1 hp @ 1800 rpm |
| Motor Frame Size | B556C |
| Motor HP | 1 hp |
| Output RPM @ Input RPM | 70 rpm @ 1750 rpm |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Housing Material | Cast Iron |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Base | No |
| Frame Size | 56C |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Input Motor HP | 1 |
| Input HP @ RPM | 0.72 hp @ 1150 rpm, 1.16 hp @ 1750 rpm |
| Reduction Type | Single |
| Washdown Duty | No |
| Output Shaft | Solid |
| Ratio | 25:1 |
| Box Height | 6 3/8 in |
| Box Width | 5 3/16 in |
| Shaft Assembly Code | H |
| Center Distance | 2.0625 in |
| Bolt Center | 5 in x 2 7/8 in |
| Media Mapping Output | H |
| Style | Right Angle |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Standard | AGMA Service Class I |
| Lubrication | None |
| Output Speed | 70 rpm |
| Output Configuration | Left & Right Output |
| Output Shaft Projection | Solid Double Projecting Output |
| Box Length | 6 in |
| Rated Efficiency | 84% |
| Max. Input HP @ 100 rpm | 0.094 hp |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Torque Out @ 1150 rpm | 790 in lb |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output RPM @ 1750 rpm Input | 70 rpm |
| Base Mounting Attachment | No Base |
| Output (Shaft or Bore) Size | 1 in |
| Series | 700 |
| Input Power Rating | 1.16 hp, 0.865 kW |
| Base to Centerline of Output Shaft | 2.28 in |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Bore Code | B5 |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Fan Cooled | No |
| Torque Out @ 1750 rpm | 875 in lb |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Material | Cast Iron, Standard Paint |
| Input (Shaft or Bore) Size | 5/8 in |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Use With | 721 |
| Worm Position | Universal |
| Center Distance Code | 721 |
| Output Torque | 875 lb-in |
| Motor Application | General Purpose |
| Family Name | F |
| Weight | 24.1 LB |
| EAN or UPC | 781711519677 |
