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Boston Gear
RF732-20F-B7-J
700 Series 20:1 Ratio J Assembly Single Reduction Worm Gear Reducer Without Base
Item #101873254
- 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 Motor HP | 3 |
| Family Name | RF |
| Center Distance | 3.25 in |
| Output Configuration | Right Output |
| Housing Material | Cast Iron |
| Base to Shaft Center Height w/Std. Base Kit | 6 3/4 in |
| Output RPM @ 1750 rpm Input | 87.5 rpm |
| Shaft Assembly Code | J |
| Torque Out @ 1750 rpm | 2558 in lb |
| Output Torque | 2858 lb-in |
| Max. Thrust Load @ RPM | 1100 lb/in @ 1150 rpm, 1100 lb/in @ 1750 rpm |
| Torque Out @ 1150 rpm | 3000 in lb |
| Base to Centerline of Output Shaft | 3 1/2 in |
| Center Distance Code | 732 |
| Use With | 732 |
| Motor Application | General Purpose |
| Frame Size | 140TC, 180C |
| Motor Frame Size | B7140TC180C |
| Motor HP | 2 hp |
| Lubrication | None |
| Max. Overhung Load @ RPM | 1300 lb/in @ 1150 rpm, 1300 lb/in @ 1750 rpm |
| Bolt Center | 7 1/2 in x 4 in |
| Base to Centerline of Input Shaft | 6 3/4 in |
| Box Height | 9 3/8 in |
| Output Torque Rating Range [Min] | 2500 lb-in, 310 Nm |
| Washdown Duty | No |
| Base to Shaft Center Height w/High Vert. Base Kit | 6 1/4 in |
| Base to Shaft Center Height w/Low Vert. Base Kit | 4.69 in |
| Output Speed | 87.5 rpm |
| Keyway Size | 3/16 x 3/32 |
| Rated Efficiency | 86% |
| Output Torque Rating Range [Max] | 3499 lb-in, 399 Nm |
| Bore Code | B7 |
| Fan Cooled | Yes |
| Series | 700 |
| Installed Options | Fan |
| Input Power Rating | 4.63 hp, 3.453 kW |
| Input Configuration | C-Face Coupled |
| Bolt Centers w/ Std. Base Kit (in) | 9 1/2 x 6 1/8 |
| HP @ RPM | 3 hp @ 1800 rpm |
| Output Shaft | Solid |
| Input (Shaft or Bore) Size | 7/8 in |
| Box Length | 9 in |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Ratio | 20:1 |
| Bolt Centers w/ Vertical Base Kits (in) | 11.88 x 6.13 |
| Media Mapping Output | J |
| Media Mapping Style | RF |
| Output Bore Shaft Dia. | 1.375 in |
| Box Width | 7 9/16 in |
| Style | Right Angle |
| Reduction Type | Single |
| Base Mounting Attachment | No Base |
| Max. Input HP @ 100 rpm | 0.41 hp |
| Material | Cast Iron, Standard Paint |
| Max. Overhung Load @ 1750 rpm | 1300 lb/in |
| Output (Shaft or Bore) Size | 1 3/8 in |
| Standard | AGMA Service Class II |
| Output Torque @ RPM | 2558 in lb @ 1750 rpm, 3000 in lb @ 1150 rpm |
| Frame | 140TC, 180C |
| Max. Thrust Load @ 1150 rpm | 1100 lb/in |
| Worm Position | Universal |
| Input HP @ RPM | 3.2 hp @ 1150 rpm, 4.63 hp @ 1750 rpm |
| Weight | 77.1 LB |
| EAN or UPC | 781711534472 |
