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