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Boston Gear
F7718-20-B5-J
700 Series 20:1 Ratio J Assembly Single Reduction Worm Gear Reducer Without Base
Item #101735456
- 1 Input Motor hp
- 700 Series
- 1.75 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 Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Output Configuration | Right Output |
| Box Length | 5 1/2 in |
| Center Distance Code | 718 |
| Bolt Centers w/ Std. Base Kit (in) | 5 3/4 x 4 1/2 |
| Box Width | 5 1/32 in |
| Output RPM @ 1750 rpm Input | 88 rpm |
| Frame Size | 56C |
| Standard | AGMA Service Class I |
| Output Shaft Projection | Solid Right Output |
| Lubrication | None |
| Reduction Type | Single |
| Base to Shaft Center Height w/Std. Base Kit | 4.38 in |
| Series | 700 |
| Keyway Size | 3/16 x 3/32 |
| Motor Frame Size | B556C |
| Washdown Duty | No |
| Output Bore Shaft Dia. | 0.875 in |
| Output Torque @ RPM | 590 in lb @ 1750 rpm, 525 in lb @ 1150 rpm |
| Max. Overhung Load @ RPM | 500 lb/in @ 1750 rpm, 500 lb/in @ 1150 rpm |
| Bolt Center Length x Bolt Center Width | 4 3/16 in x 2 3/4 in |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.38 in |
| Family Name | F |
| Shaft Assembly Code | J |
| Max. Thrust Load @ 1150 rpm | 500 lb/in |
| HP @ RPM | 0.75 hp @ 1800 rpm |
| Max. Thrust Load @ RPM | 500 lb/in @ 1750 rpm, 500 lb/in @ 1150 rpm |
| Output Speed | 87.5 rpm |
| Center Distance | 1.75 in |
| Output (Shaft or Bore) Size | 7/8 in |
| Material | Cast Iron, Standard Paint |
| Bore Code | B5 |
| Torque Out @ 1750 rpm | 590 in lb |
| Torque Out @ 1150 rpm | 525 in lb |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3 1/2 in |
| Worm Position | Universal |
| Box Height | 5 3/4 in |
| Housing Material | Cast Iron |
| Base Mounting Attachment | No Base |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Input (Shaft or Bore) Size | 5/8 in |
| Base to Centerline of Output Shaft | 2 1/16 in |
| Media Mapping Output | J |
| Bolt Centers w/ Vertical Base Kits (in) | 7.38 x 4.00 |
| Max. Input HP @ 100 rpm | 0.08 hp |
| Input HP @ RPM | 0.97 hp @ 1750 rpm, 0.58 hp @ 1150 rpm |
| Max. Overhung Load @ 1750 rpm | 500 lb/in |
| Style | Right Angle |
| Bolt Pattern | 4 3/16 x 2 3/4 |
| Motor Application | General Purpose |
| Base to Centerline of Input Shaft | 3 13/16 in |
| Motor HP | 3/4 hp |
| Input Motor HP | 1 |
| Base | No |
| Output Shaft | Solid |
| Fan Cooled | No |
| Media Mapping Style | F |
| Use With | 718 |
| Input Configuration | C-Face Quilled |
| Bolt Center | 4 3/16 in x 2 3/4 in |
| Output Torque | 590 lb-in |
| Ratio | 20:1 |
| Rated Efficiency | 84% |
| Input Power Rating | 0.97 hp, 0.723 kW |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 7.63 x 2.50 |
| Frame | 56C |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3 in |
| Weight | 19.1 LB |
| EAN or UPC | 781711519356 |
