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