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