Find a Service Center
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
| Max. Input HP @ 100 rpm | 0.08 hp |
| Max. Thrust Load @ 1150 rpm | 500 lb/in |
| Input HP @ RPM | 0.97 hp @ 1750 rpm, 0.58 hp @ 1150 rpm |
| Series | 700 |
| Washdown Duty | No |
| Use With | 718 |
| Output Torque @ RPM | 590 in lb @ 1750 rpm, 525 in lb @ 1150 rpm |
| Standard | AGMA Service Class I |
| Box Height | 5 3/4 in |
| Output (Shaft or Bore) Size | 7/8 in |
| Base to Shaft Center Height w/Std. Base Kit | 4.38 in |
| Box Width | 5 1/32 in |
| Motor HP | 3/4 hp |
| Bolt Centers w/ Vertical Base Kits (in) | 7.38 x 4.00 |
| Output Torque | 590 lb-in |
| Fan Cooled | No |
| Frame | 56C |
| Base | No |
| Housing Material | Cast Iron |
| Base to Centerline of Output Shaft | 2 1/16 in |
| Output Shaft | Solid |
| Motor Frame Size | B556C |
| Output RPM @ 1750 rpm Input | 88 rpm |
| Max. Overhung Load @ RPM | 500 lb/in @ 1750 rpm, 500 lb/in @ 1150 rpm |
| Input Power Rating | 0.97 hp, 0.723 kW |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 7.63 x 2.50 |
| Material | Cast Iron, Standard Paint |
| Max. Thrust Load @ RPM | 500 lb/in @ 1750 rpm, 500 lb/in @ 1150 rpm |
| Input (Shaft or Bore) Size | 5/8 in |
| Bore Code | B5 |
| Base to Centerline of Input Shaft | 3 13/16 in |
| Torque Out @ 1150 rpm | 525 in lb |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.38 in |
| Frame Size | 56C |
| Input Motor HP | 1 |
| Keyway Size | 3/16 x 3/32 |
| Output Shaft Projection | Solid Right Output |
| Bolt Centers w/ Std. Base Kit (in) | 5 3/4 x 4 1/2 |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3 in |
| Family Name | F |
| Box Length | 5 1/2 in |
| Center Distance | 1.75 in |
| Base Mounting Attachment | No Base |
| Input Configuration | C-Face Quilled |
| Torque Out @ 1750 rpm | 590 in lb |
| Output Configuration | Right Output |
| Motor Application | General Purpose |
| Ratio | 20:1 |
| Worm Position | Universal |
| Bolt Center Length x Bolt Center Width | 4 3/16 in x 2 3/4 in |
| Style | Right Angle |
| Media Mapping Style | F |
| Output Speed | 87.5 rpm |
| Bolt Center | 4 3/16 in x 2 3/4 in |
| Shaft Assembly Code | J |
| Rated Efficiency | 84% |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Media Mapping Output | J |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3 1/2 in |
| Max. Overhung Load @ 1750 rpm | 500 lb/in |
| Lubrication | None |
| Center Distance Code | 718 |
| Output Bore Shaft Dia. | 0.875 in |
| Reduction Type | Single |
| HP @ RPM | 0.75 hp @ 1800 rpm |
| Bolt Pattern | 4 3/16 x 2 3/4 |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Weight | 19.1 LB |
| EAN or UPC | 781711519356 |
