Find a Service Center
Boston Gear
F7721-25-B5-J
700 Series 25:1 Ratio J Assembly Single Reduction Worm Gear Reducer Without Base
Item #101836245
- 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
| Housing Material | Cast Iron |
| Output (Shaft or Bore) Size | 1 in |
| Series | 700 |
| Motor HP | 1 hp |
| Output Speed | 70 rpm |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Center Distance | 2.0625 in |
| Base | No |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Family Name | F |
| Output Configuration | Right Output |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Shaft Assembly Code | J |
| Box Length | 6 in |
| Output Torque @ RPM | 790 in lb @ 1150 rpm, 875 in lb @ 1750 rpm |
| Input Power Rating | 1.16 hp, 0.865 kW |
| Ratio | 25:1 |
| Media Mapping Style | F |
| Lubrication | None |
| Box Width | 5 3/16 in |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| HP @ RPM | 1 hp @ 1800 rpm |
| Input (Shaft or Bore) Size | 5/8 in |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Input Configuration | C-Face Quilled |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Output RPM @ Input RPM | 70 rpm @ 1750 rpm |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Media Mapping Output | J |
| Output Shaft | Solid |
| Frame | 56C |
| Frame Size | 56C |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Box Height | 6 3/8 in |
| Worm Position | Universal |
| Base Mounting Attachment | No Base |
| Input Motor HP | 1 |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Output Shaft Projection | Solid Right Output |
| Motor Frame Size | B556C |
| Use With | 721 |
| Bore Code | B5 |
| Reduction Type | Single |
| Base to Centerline of Output Shaft | 2.28 in |
| Style | Right Angle |
| Keyway Size | 3/16 x 3/32 |
| Input HP @ RPM | 0.72 hp @ 1150 rpm, 1.16 hp @ 1750 rpm |
| Center Distance Code | 721 |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Torque Out @ 1750 rpm | 875 in lb |
| Bolt Center | 5 in x 2 7/8 in |
| Washdown Duty | No |
| Torque Out @ 1150 rpm | 790 in lb |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Max. Input HP @ 100 rpm | 0.094 hp |
| Output RPM @ 1750 rpm Input | 70 rpm |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Output Bore Shaft Dia. | 1 in |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Fan Cooled | No |
| Standard | AGMA Service Class I |
| Material | Cast Iron, Standard Paint |
| Rated Efficiency | 84% |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Motor Application | General Purpose |
| Output Torque | 875 lb-in |
| Weight | 24.1 LB |
| EAN or UPC | 781711519684 |
