Find a Service Center
Boston Gear
RF732-20F-B7-H
700 Series 20:1 Ratio H Assembly Single Reduction Worm Gear Reducer Without Base
Item #101871693
- 3 Input Motor hp
- 700 Series
- 3.25 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 (Shaft or Bore) Size | 7/8 in |
| Rated Efficiency | 86% |
| Motor Frame Size | B7140TC180C |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Lubrication | None |
| Input HP @ RPM | 3.2 hp @ 1150 rpm, 4.63 hp @ 1750 rpm |
| HP @ RPM | 3 hp @ 1800 rpm |
| Base to Shaft Center Height w/Low Vert. Base Kit | 4.69 in |
| Motor HP | 2 hp |
| Worm Position | Universal |
| Output RPM @ 1750 rpm Input | 87.5 rpm |
| Output (Shaft or Bore) Size | 1 3/8 in |
| Keyway Size | 3/16 x 3/32 |
| Box Length | 9 in |
| Fan Cooled | Yes |
| Installed Options | Fan |
| Reduction Type | Single |
| Input Configuration | C-Face Coupled |
| Output Speed | 87.5 rpm |
| Max. Thrust Load @ 1150 rpm | 1100 lb/in |
| Bolt Centers w/ Std. Base Kit (in) | 9 1/2 x 6 1/8 |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Output Torque Rating Range [Max] | 3499 lb-in, 399 Nm |
| Max. Overhung Load @ RPM | 1300 lb/in @ 1150 rpm, 1300 lb/in @ 1750 rpm |
| Motor Application | General Purpose |
| Max. Thrust Load @ RPM | 1100 lb/in @ 1150 rpm, 1100 lb/in @ 1750 rpm |
| Housing Material | Cast Iron |
| Material | Cast Iron, Standard Paint |
| Max. Overhung Load @ 1750 rpm | 1300 lb/in |
| Base Mounting Attachment | No Base |
| Box Width | 7 9/16 in |
| Output Torque | 2858 lb-in |
| Bore Code | B7 |
| Washdown Duty | No |
| Output Torque Rating Range [Min] | 2500 lb-in, 310 Nm |
| Output Torque @ RPM | 2558 in lb @ 1750 rpm, 3000 in lb @ 1150 rpm |
| Input Power Rating | 4.63 hp, 3.453 kW |
| Output Configuration | Left & Right Output |
| Ratio | 20:1 |
| Media Mapping Output | H |
| Base to Shaft Center Height w/High Vert. Base Kit | 6 1/4 in |
| Torque Out @ 1750 rpm | 2558 in lb |
| Bolt Centers w/ Vertical Base Kits (in) | 11.88 x 6.13 |
| Torque Out @ 1150 rpm | 3000 in lb |
| Shaft Assembly Code | H |
| Output Shaft | Solid |
| Frame | 140TC, 180C |
| Standard | AGMA Service Class II |
| Center Distance | 3.25 in |
| Input Motor HP | 3 |
| Box Height | 9 3/8 in |
| Base to Shaft Center Height w/Std. Base Kit | 6 3/4 in |
| Max. Input HP @ 100 rpm | 0.41 hp |
| Center Distance Code | 732 |
| Family Name | RF |
| Use With | 732 |
| Frame Size | 140TC, 180C |
| Style | Right Angle |
| Bolt Center | 7 1/2 in x 4 in |
| Output Bore Shaft Dia. | 1.375 in |
| Series | 700 |
| Media Mapping Style | RF |
| Base to Centerline of Input Shaft | 6 3/4 in |
| Base to Centerline of Output Shaft | 3 1/2 in |
| Weight | 77.1 LB |
| EAN or UPC | 781711534465 |
