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
| Motor Frame Size | B7140TC180C |
| Output Shaft | Solid |
| Frame | 140TC, 180C |
| Max. Input HP @ 100 rpm | 0.17 hp |
| Base Mounting Attachment | No Base |
| Housing Material | Cast Iron |
| Output Bore Shaft Dia. | 1.125 in |
| Standard | AGMA Service Class I |
| Base to Centerline of Input Shaft | 4 7/8 in |
| Reduction Type | Single |
| Input Power Rating | 1.95 hp, 1.454 kW |
| Material | Cast Iron, Standard Paint |
| Output Configuration | Left & Right Output |
| Style | Right Angle |
| Bore Code | B7 |
| Output Speed | 87.5 rpm |
| Base to Centerline of Output Shaft | 2 1/2 in |
| Fan Cooled | No |
| Input (Shaft or Bore) Size | 7/8 in |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Base to Shaft Center Height w/High Vert. Base Kit | 5 1/4 in |
| Output Torque | 1233 lb-in |
| Box Length | 6 3/8 in |
| Media Mapping Output | H |
| Rated Efficiency | 88% |
| Output RPM @ 1750 rpm Input | 87.5 rpm |
| HP @ RPM | 1.5 hp @ 1800 rpm |
| Output Torque Rating Range [Max] | 1499 lb-in, 159 Nm |
| Family Name | RF |
| Max. Thrust Load @ 1150 rpm | 900 lb/in |
| Lubrication | None |
| Base to Shaft Center Height w/Std. Base Kit | 5.19 in |
| Box Width | 5 7/16 in |
| Motor Application | General Purpose |
| Motor HP | 1.5 hp |
| Torque Out @ 1150 rpm | 1160 in lb |
| Input HP @ RPM | 1.27 hp @ 1150 rpm, 1.95 hp @ 1750 rpm |
| Output Torque @ RPM | 1160 in lb @ 1150 rpm, 1233 in lb @ 1750 rpm |
| Shaft Assembly Code | H |
| Torque Out @ 1750 rpm | 1233 in lb |
| Bolt Center | 5 in x 2 7/8 in |
| Input Configuration | C-Face Coupled |
| Washdown Duty | No |
| Series | 700 |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Bolt Centers w/ Std. Base Kit (in) | 7 1/16 x 4 7/8 |
| Bolt Centers w/ Vertical Base Kits (in) | 8.94 x 4.88 |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 4.06 in |
| Keyway Size | 3/16 x 3/32 |
| Output (Shaft or Bore) Size | 1 1/8 in |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.38 in |
| Worm Position | Universal |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Box Height | 6 15/16 in |
| Media Mapping Style | RF |
| Use With | 724 |
| Output Torque Rating Range [Min] | 1000 lb-in, 110 Nm |
| Frame Size | 140TC, 180C |
| Ratio | 20:1 |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 9.19 x 2.88 |
| Max. Overhung Load @ 1750 rpm | 900 lb/in |
| Input Motor HP | 2 |
| Max. Thrust Load @ RPM | 900 lb/in @ 1150 rpm, 900 lb/in @ 1750 rpm |
| Max. Overhung Load @ RPM | 900 lb/in @ 1150 rpm, 900 lb/in @ 1750 rpm |
| Center Distance Code | 724 |
| Center Distance | 2.375 in |
| Weight | 41.1 LB |
| EAN or UPC | 781711528839 |
