Find a Service Center
Boston Gear
F7721-30-B5-J
700 Series 30:1 Ratio J Assembly Single Reduction Worm Gear Reducer Without Base
Item #101856455
- 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
- Must be filled to the proper level with the recommended lubricant for your application before operation
| Fan Cooled | No |
| Output Speed | 58.3 rpm |
| Output (Shaft or Bore) Size | 1 in |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Base Mounting Attachment | No Base |
| Max. Overhung Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Base to Centerline of Output Shaft | 2.28 in |
| Torque Out @ 1750 rpm | 871 in lb |
| Input Configuration | C-Face Quilled |
| Box Width | 5 3/16 in |
| Family Name | F |
| Motor HP | 3/4 hp |
| Frame Size | 56C |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Input Motor HP | 1 |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Max. Thrust Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Rated Efficiency | 81% |
| Output Shaft Projection | Solid Right Output |
| Material | Cast Iron, Standard Paint |
| Output RPM @ Input RPM | 58 rpm @ 1750 rpm |
| Output Torque @ RPM | 871 in lb @ 1750 rpm, 795 in lb @ 1150 rpm |
| Output RPM @ 1750 rpm Input | 58 rpm |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Input Power Rating | 0.99 hp, 0.738 kW |
| Box Length | 6 in |
| Ratio | 30:1 |
| Reduction Type | Single |
| Motor Application | General Purpose |
| Base | No |
| Input (Shaft or Bore) Size | 5/8 in |
| Media Mapping Style | F |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Shaft Assembly Code | J |
| Output Configuration | Right Output |
| Max. Input HP @ 100 rpm | 0.086 hp |
| Housing Material | Cast Iron |
| Style | Right Angle |
| Worm Position | Universal |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Center Distance | 2.0625 in |
| Input HP @ RPM | 0.99 hp @ 1750 rpm, 0.62 hp @ 1150 rpm |
| Torque Out @ 1150 rpm | 795 in lb |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Output Torque | 871 lb-in |
| Standard | AGMA Service Class I |
| Lubrication | None |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Washdown Duty | No |
| Bolt Pattern | 5 x 2.88 |
| Series | 700 |
| Bore Code | B5 |
| Frame | 56C |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Output Bore Shaft Dia. | 1 in |
| HP @ RPM | 0.75 hp @ 1800 rpm |
| Motor Frame Size | B556C |
| Use With | 721 |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Box Height | 6 3/8 in |
| Bolt Center | 5 in x 2 7/8 in |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Center Distance Code | 721 |
| Media Mapping Output | J |
| Output Shaft | Solid |
| Weight | 24.1 LB |
| EAN or UPC | 781711519714 |
