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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
| Center Distance | 2.0625 in |
| Base Mounting Attachment | No Base |
| Bolt Pattern | 5 x 2.88 |
| Max. Thrust Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Reduction Type | Single |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Style | Right Angle |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Series | 700 |
| Base | No |
| Box Width | 5 3/16 in |
| Bolt Center | 5 in x 2 7/8 in |
| Output RPM @ 1750 rpm Input | 88 rpm |
| Max. Input HP @ 100 rpm | 0.11 hp |
| Output Configuration | Right Output |
| Box Height | 6 3/8 in |
| Frame Size | 56C |
| Motor Frame Size | B556C |
| Lubrication | None |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Base to Centerline of Output Shaft | 2.28 in |
| HP @ RPM | 1 hp @ 1800 rpm |
| Input Configuration | C-Face Quilled |
| Output Torque @ RPM | 892 in lb @ 1750 rpm, 782 in lb @ 1150 rpm |
| Motor HP | 1 hp |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Output Bore Shaft Dia. | 1 in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Worm Position | Universal |
| Rated Efficiency | 88% |
| Center Distance Code | 721 |
| Family Name | F |
| Output Speed | 87.5 rpm |
| Bore Code | B5 |
| Ratio | 20:1 |
| Motor Application | General Purpose |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Input HP @ RPM | 1.4 hp @ 1750 rpm, 0.86 hp @ 1150 rpm |
| Output Shaft | Solid |
| Media Mapping Output | J |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Use With | 721 |
| Housing Material | Cast Iron |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Washdown Duty | No |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Max. Overhung Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Output Torque | 892 lb-in |
| Input Power Rating | 1.4 hp, 1.044 kW |
| Box Length | 6 in |
| Output Shaft Projection | Solid Right Output |
| Shaft Assembly Code | J |
| Output (Shaft or Bore) Size | 1 in |
| Frame | 56C |
| Torque Out @ 1150 rpm | 782 in lb |
| Material | Cast Iron, Standard Paint |
| Standard | AGMA Service Class II |
| Fan Cooled | No |
| Torque Out @ 1750 rpm | 892 in lb |
| Input Motor HP | 1 |
| Input (Shaft or Bore) Size | 5/8 in |
| Media Mapping Style | F |
| Weight | 24.1 LB |
| EAN or UPC | 781711519653 |
