Find a Service Center
Boston Gear
RF718-20-B5-G
700 Series 20:1 Ratio G Assembly Single Reduction Worm Gear Reducer Without Base
Item #101872193
- 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
caution
- Must be filled to the proper level with the recommended lubricant for your application before operation
| Input Power Rating | 0.97 hp, 0.723 kW |
| Max. Overhung Load @ RPM | 500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3 in |
| Reduction Type | Single |
| Max. Overhung Load @ 1750 rpm | 500 lb/in |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Max. Thrust Load @ RPM | 500 lb/in @ 1150 rpm, 500 lb/in @ 1750 rpm |
| Input Motor HP | 1 |
| HP @ RPM | 0.75 hp @ 1800 rpm |
| Style | Right Angle |
| Motor Frame Size | B556C |
| Family Name | RF |
| Input (Shaft or Bore) Size | 5/8 in |
| Frame Size | 56C |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.5 in |
| Output (Shaft or Bore) Size | 7/8 in |
| Center Distance | 1.75 in |
| Washdown Duty | No |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Bolt Centers w/ Std. Base Kit (in) | 5 3/4 x 4 1/2 |
| Output Torque | 590 lb-in |
| Output Shaft | Solid |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Media Mapping Style | RF |
| Shaft Assembly Code | G |
| Bore Code | B5 |
| Rated Efficiency | 84% |
| Keyway Size | 3/16 x 3/32 |
| Media Mapping Output | G |
| Series | 700 |
| Torque Out @ 1750 rpm | 590 in lb |
| Base to Centerline of Input Shaft | 3 13/16 in |
| Fan Cooled | No |
| Frame | 56C |
| Base to Shaft Center Height w/Std. Base Kit | 4.38 in |
| Bolt Center | 4 3/16 in x 2 3/4 in |
| Base to Centerline of Output Shaft | 2 1/16 in |
| Housing Material | Cast Iron |
| Input Configuration | C-Face Coupled |
| Worm Position | Universal |
| Material | Cast Iron, Standard Paint |
| Input HP @ RPM | 0.58 hp @ 1150 rpm, 0.97 hp @ 1750 rpm |
| Use With | 718 |
| Bolt Center Length x Bolt Center Width | 4 3/16 in x 2 3/4 in |
| Center Distance Code | 718 |
| Lubrication | None |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.38 in |
| Output RPM @ 1750 rpm Input | 87.5 rpm |
| Box Length | 5 1/2 in |
| Ratio | 20:1 |
| Base Mounting Attachment | No Base |
| Motor Application | General Purpose |
| Motor HP | 3/4 hp |
| Box Height | 5 3/4 in |
| Box Width | 5 1/32 in |
| Output Bore Shaft Dia. | 0.875 in |
| Bolt Centers w/ Vertical Base Kits (in) | 7.38 x 4.00 |
| Output Torque @ RPM | 525 in lb @ 1150 rpm, 590 in lb @ 1750 rpm |
| Output Speed | 87.5 rpm |
| Standard | AGMA Service Class I |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 7.63 x 2.50 |
| Max. Input HP @ 100 rpm | 0.08 hp |
| Max. Thrust Load @ 1150 rpm | 500 lb/in |
| Output Configuration | Left Output |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Torque Out @ 1150 rpm | 525 in lb |
| Weight | 27.1 LB |
| EAN or UPC | 781711526774 |
