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Boston Gear
RF721-5-B7-J
700 Series 5:1 Ratio J Assembly Single Reduction Worm Gear Reducer Without Base
Item #101870563
- 2 Input Motor hp
- 700 Series
- 2.06 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
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Ratio | 5:1 |
| Keyway Size | 3/16 x 3/32 |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Washdown Duty | No |
| Motor Frame Size | B7140TC180C |
| Fan Cooled | No |
| Motor HP | 2 hp |
| Box Height | 6 3/8 in |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Frame Size | 140TC, 180C |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Output Shaft | Solid |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Bolt Center | 5 in x 2 7/8 in |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Torque Out @ 1150 rpm | 575 in lb |
| Output (Shaft or Bore) Size | 1 in |
| Housing Material | Cast Iron |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Box Length | 6 in |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Input Configuration | C-Face Coupled |
| Output RPM @ Input RPM | 350 rpm @ 1750 rpm |
| Reduction Type | Single |
| Lubrication | None |
| Standard | AGMA Service Class II |
| Material | Cast Iron, Standard Paint |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Output Torque | 620 lb-in |
| Input Power Rating | 3.66 hp, 2.729 kW |
| HP @ RPM | 3 hp @ 1800 rpm |
| Center Distance Code | 721 |
| Max. Input HP @ 100 rpm | 0.3 hp |
| Input HP @ RPM | 2.33 hp @ 1150 rpm, 3.66 hp @ 1750 rpm |
| Output Bore Shaft Dia. | 1 in |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Motor Application | General Purpose |
| Media Mapping Output | J |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Base Mounting Attachment | No Base |
| Style | Right Angle |
| Output Configuration | Right Output |
| Output Torque @ RPM | 575 in lb @ 1150 rpm, 620 in lb @ 1750 rpm |
| Rated Efficiency | 94% |
| Torque Out @ 1750 rpm | 620 in lb |
| Input (Shaft or Bore) Size | 7/8 in |
| Media Mapping Style | RF |
| Input Motor HP | 2 |
| Output Speed | 350 rpm |
| Shaft Assembly Code | J |
| Use With | 721 |
| Box Width | 5 3/16 in |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Series | 700 |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Worm Position | Universal |
| Output RPM @ 1750 rpm Input | 350 rpm |
| Frame | 140TC, 180C |
| Bore Code | B7 |
| Family Name | RF |
| Center Distance | 2.0625 in |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Weight | 36.1 LB |
| EAN or UPC | 781711526972 |
