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