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Boston Gear
F7721-20-B5-G
700 Series 20:1 Ratio G Assembly Single Reduction Worm Gear Reducer Without Base
Item #101833975
- 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
| Output Bore Shaft Dia. | 1 in |
| Box Length | 6 in |
| Ratio | 20:1 |
| Rated Efficiency | 88% |
| Center Distance | 2.0625 in |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Output Speed | 87.5 rpm |
| Washdown Duty | No |
| Output Torque | 892 lb-in |
| Output Torque @ RPM | 892 in lb @ 1750 rpm, 782 in lb @ 1150 rpm |
| HP @ RPM | 1 hp @ 1800 rpm |
| Frame | 56C |
| Bolt Center | 5 in x 2 7/8 in |
| Base | No |
| Box Width | 5 3/16 in |
| Use With | 721 |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Torque Out @ 1150 rpm | 782 in lb |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Max. Input HP @ 100 rpm | 0.11 hp |
| Housing Material | Cast Iron |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Motor Application | General Purpose |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Reduction Type | Single |
| Input HP @ RPM | 1.4 hp @ 1750 rpm, 0.86 hp @ 1150 rpm |
| Series | 700 |
| Shaft Assembly Code | G |
| Style | Right Angle |
| Fan Cooled | No |
| Torque Out @ 1750 rpm | 892 in lb |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Motor Frame Size | B556C |
| Output Shaft | Solid |
| Worm Position | Universal |
| Max. Thrust Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Input Motor HP | 1 |
| Material | Cast Iron, Standard Paint |
| Box Height | 6 3/8 in |
| Output (Shaft or Bore) Size | 1 in |
| Input (Shaft or Bore) Size | 5/8 in |
| Standard | AGMA Service Class II |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Motor HP | 1 hp |
| Media Mapping Output | G |
| Family Name | F |
| Max. Overhung Load @ RPM | 700 lb/in @ 1750 rpm, 700 lb/in @ 1150 rpm |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Base to Centerline of Output Shaft | 2.28 in |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Input Power Rating | 1.4 hp, 1.044 kW |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Frame Size | 56C |
| Lubrication | None |
| Center Distance Code | 721 |
| Output RPM @ 1750 rpm Input | 88 rpm |
| Bore Code | B5 |
| Output Configuration | Left Output |
| Input Configuration | C-Face Quilled |
| Base Mounting Attachment | No Base |
| Output Shaft Projection | Solid Left Output |
| Media Mapping Style | F |
| Bolt Pattern | 5 x 2.88 |
| Weight | 24.1 LB |
| EAN or UPC | 781711519639 |
