Find a Service Center
Boston Gear
RF724-20-B7-H
700 Series 20:1 Ratio H Assembly Single Reduction Worm Gear Reducer Without Base
Item #101870968
- 2 Input Motor hp
- 700 Series
- 2.38 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
| Worm Position | Universal |
| Rated Efficiency | 88% |
| Torque Out @ 1750 rpm | 1233 in lb |
| Media Mapping Output | H |
| Max. Input HP @ 100 rpm | 0.17 hp |
| Output Torque | 1233 lb-in |
| Use With | 724 |
| Frame | 140TC, 180C |
| Input HP @ RPM | 1.27 hp @ 1150 rpm, 1.95 hp @ 1750 rpm |
| Input Power Rating | 1.95 hp, 1.454 kW |
| Base to Centerline of Input Shaft | 4 7/8 in |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 4.06 in |
| Material | Cast Iron, Standard Paint |
| Frame Size | 140TC, 180C |
| Bore Code | B7 |
| Fan Cooled | No |
| Base to Shaft Center Height w/High Vert. Base Kit | 5 1/4 in |
| Family Name | RF |
| Input (Shaft or Bore) Size | 7/8 in |
| Style | Right Angle |
| Base Mounting Attachment | No Base |
| Center Distance Code | 724 |
| Bolt Centers w/ Std. Base Kit (in) | 7 1/16 x 4 7/8 |
| Output Torque @ RPM | 1160 in lb @ 1150 rpm, 1233 in lb @ 1750 rpm |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Base to Shaft Center Height w/Std. Base Kit | 5.19 in |
| Output RPM @ 1750 rpm Input | 87.5 rpm |
| Series | 700 |
| Ratio | 20:1 |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 9.19 x 2.88 |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Output Torque Rating Range [Min] | 1000 lb-in, 110 Nm |
| Bolt Center | 5 in x 2 7/8 in |
| Output Torque Rating Range [Max] | 1499 lb-in, 159 Nm |
| Media Mapping Style | RF |
| Reduction Type | Single |
| Box Length | 6 3/8 in |
| Box Width | 5 7/16 in |
| Output Shaft | Solid |
| Max. Overhung Load @ 1750 rpm | 900 lb/in |
| Center Distance | 2.375 in |
| Input Motor HP | 2 |
| Input Configuration | C-Face Coupled |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.38 in |
| Box Height | 6 15/16 in |
| Motor Frame Size | B7140TC180C |
| Washdown Duty | No |
| Lubrication | None |
| Motor Application | General Purpose |
| Housing Material | Cast Iron |
| Shaft Assembly Code | H |
| Torque Out @ 1150 rpm | 1160 in lb |
| Max. Overhung Load @ RPM | 900 lb/in @ 1150 rpm, 900 lb/in @ 1750 rpm |
| Bolt Centers w/ Vertical Base Kits (in) | 8.94 x 4.88 |
| Output (Shaft or Bore) Size | 1 1/8 in |
| Output Configuration | Left & Right Output |
| Output Bore Shaft Dia. | 1.125 in |
| Max. Thrust Load @ 1150 rpm | 900 lb/in |
| Output Speed | 87.5 rpm |
| Standard | AGMA Service Class I |
| Motor HP | 1.5 hp |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Keyway Size | 3/16 x 3/32 |
| Max. Thrust Load @ RPM | 900 lb/in @ 1150 rpm, 900 lb/in @ 1750 rpm |
| HP @ RPM | 1.5 hp @ 1800 rpm |
| Base to Centerline of Output Shaft | 2 1/2 in |
| Weight | 41.1 LB |
| EAN or UPC | 781711528839 |
