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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
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Rated Efficiency | 94% |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Ratio | 5:1 |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Bolt Center | 5 in x 2 7/8 in |
| Washdown Duty | No |
| Center Distance | 2.0625 in |
| Output RPM @ Input RPM | 350 rpm @ 1750 rpm |
| Input Motor HP | 2 |
| Shaft Assembly Code | J |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Worm Position | Universal |
| Max. Input HP @ 100 rpm | 0.3 hp |
| Box Length | 6 in |
| Torque Out @ 1750 rpm | 620 in lb |
| Series | 700 |
| Style | Right Angle |
| Standard | AGMA Service Class II |
| Output Configuration | Right Output |
| Input HP @ RPM | 2.33 hp @ 1150 rpm, 3.66 hp @ 1750 rpm |
| Media Mapping Output | J |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Output Shaft | Solid |
| Lubrication | None |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Material | Cast Iron, Standard Paint |
| Box Width | 5 3/16 in |
| Frame | 140TC, 180C |
| Keyway Size | 3/16 x 3/32 |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Reduction Type | Single |
| Output Speed | 350 rpm |
| Output Bore Shaft Dia. | 1 in |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Input (Shaft or Bore) Size | 7/8 in |
| Center Distance Code | 721 |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Media Mapping Style | RF |
| Family Name | RF |
| Fan Cooled | No |
| Frame Size | 140TC, 180C |
| Box Height | 6 3/8 in |
| Motor HP | 2 hp |
| Torque Out @ 1150 rpm | 575 in lb |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Use With | 721 |
| Output RPM @ 1750 rpm Input | 350 rpm |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Housing Material | Cast Iron |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Output Torque @ RPM | 575 in lb @ 1150 rpm, 620 in lb @ 1750 rpm |
| Output Torque | 620 lb-in |
| Output (Shaft or Bore) Size | 1 in |
| Base Mounting Attachment | No Base |
| Motor Frame Size | B7140TC180C |
| HP @ RPM | 3 hp @ 1800 rpm |
| Bore Code | B7 |
| Input Configuration | C-Face Coupled |
| Motor Application | General Purpose |
| Input Power Rating | 3.66 hp, 2.729 kW |
| Weight | 36.1 LB |
| EAN or UPC | 781711526972 |
