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Boston Gear
RF721-40-B5-G
700 Series 40:1 Ratio G Assembly Single Reduction Worm Gear Reducer Without Base
Item #101870656
- 0.75 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
| Standard | AGMA Service Class I |
| Worm Position | Universal |
| Motor Application | General Purpose |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Style | Right Angle |
| Output Torque | 876 lb-in |
| Housing Material | Cast Iron |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Base Mounting Attachment | No Base |
| Torque Out @ 1150 rpm | 785 in lb |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Input (Shaft or Bore) Size | 5/8 in |
| Input Configuration | C-Face Coupled |
| Input Motor HP | 0.75 |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Reduction Type | Single |
| Media Mapping Output | G |
| Keyway Size | 3/16 x 3/32 |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Ratio | 40:1 |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Output (Shaft or Bore) Size | 1 in |
| Bore Code | B5 |
| Lubrication | None |
| HP @ RPM | 0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm |
| Output Configuration | Left Output |
| Shaft Assembly Code | G |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output RPM @ 1750 rpm Input | 43.75 rpm |
| Washdown Duty | No |
| Center Distance Code | 721 |
| Fan Cooled | No |
| Output Shaft | Solid |
| Family Name | RF |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Motor HP | 1/2 hp |
| Frame Size | 56C |
| Rated Efficiency | 75% |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Input Power Rating | 0.81 hp, 0.604 kW |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Torque Out @ 1750 rpm | 876 in lb |
| Max. Input HP @ 100 rpm | 0.074 hp |
| Input HP @ RPM | 0.49 hp @ 1150 rpm, 0.81 hp @ 1750 rpm |
| Box Height | 6 3/8 in |
| Bolt Center | 5 in x 2 7/8 in |
| Output RPM @ Input RPM | 44 rpm @ 1750 rpm |
| Output Torque @ RPM | 785 in lb @ 1150 rpm, 876 in lb @ 1750 rpm |
| Box Width | 5 3/16 in |
| Box Length | 6 in |
| Output Bore Shaft Dia. | 1 in |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Frame | 56C |
| Series | 700 |
| Output Speed | 43.8 rpm |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Use With | 721 |
| Motor Frame Size | B556C |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Media Mapping Style | RF |
| Material | Cast Iron, Standard Paint |
| Center Distance | 2.0625 in |
| Weight | 36.1 LB |
| EAN or UPC | 781711527139 |
