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Boston Gear
F7721-20-B5-J
700 Series 20:1 Ratio J Assembly Single Reduction Worm Gear Reducer Without Base
Item #101834490
- 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
| Family Name | F |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Motor HP | 1 hp |
| Max. Thrust Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Input (Shaft or Bore) Size | 5/8 in |
| Center Distance | 2.0625 in |
| Torque Out @ 1750 rpm | 892 in lb |
| Output Torque @ RPM | 892 in lb @ 1750 rpm, 782 in lb @ 1150 rpm |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Box Length | 6 in |
| Box Height | 6 3/8 in |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Torque Out @ 1150 rpm | 782 in lb |
| Series | 700 |
| Lubrication | None |
| Base | No |
| Washdown Duty | No |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Style | Right Angle |
| Bolt Pattern | 5 x 2.88 |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Output RPM @ 1750 rpm Input | 88 rpm |
| Center Distance Code | 721 |
| Media Mapping Style | F |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Standard | AGMA Service Class II |
| Output Shaft | Solid |
| Base Mounting Attachment | No Base |
| Max. Overhung Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Reduction Type | Single |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Motor Application | General Purpose |
| Ratio | 20:1 |
| Input Configuration | C-Face Quilled |
| Output Torque | 892 lb-in |
| Output Shaft Projection | Solid Right Output |
| Frame | 56C |
| Motor Frame Size | B556C |
| Shaft Assembly Code | J |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Housing Material | Cast Iron |
| Output (Shaft or Bore) Size | 1 in |
| Output Bore Shaft Dia. | 1 in |
| HP @ RPM | 1 hp @ 1800 rpm |
| Output Speed | 87.5 rpm |
| Base to Centerline of Output Shaft | 2.28 in |
| Bolt Center | 5 in x 2 7/8 in |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Rated Efficiency | 88% |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Worm Position | Universal |
| Input Power Rating | 1.4 hp, 1.044 kW |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Max. Input HP @ 100 rpm | 0.11 hp |
| Fan Cooled | No |
| Frame Size | 56C |
| Use With | 721 |
| Material | Cast Iron, Standard Paint |
| Bore Code | B5 |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Input Motor HP | 1 |
| Media Mapping Output | J |
| Box Width | 5 3/16 in |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Input HP @ RPM | 1.4 hp @ 1750 rpm, 0.86 hp @ 1150 rpm |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Output Configuration | Right Output |
| Weight | 24.1 LB |
| EAN or UPC | 781711519653 |
