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Boston Gear
721-5-J
700 Series 5:1 Ratio J Assembly Single Reduction Worm Gear Reducer Without Base
Item #101856438
- 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
| Input (Shaft or Bore) Size | 5/8 in |
| Washdown Duty | No |
| Style | Right Angle |
| Input Motor HP | 2 |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Use With | 721 |
| Output Bore Shaft Dia. | 1 in |
| Output Torque @ RPM | 575 in lb @ 1150 rpm, 620 in lb @ 1750 rpm |
| Media Mapping Output | J |
| Box Height | 6 3/8 in |
| Base Mounting Attachment | No Base |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Frame Size | Shaft Input, Not a C-Face |
| Worm Position | Universal |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Input Power Rating | 3.66 hp, 2.729 kW |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Reduction Type | Single |
| Housing Material | Cast Iron |
| Bolt Center | 6 3/8 in x 4 11/16 in |
| Box Width | 3 13/16 in |
| Output RPM @ Input RPM | 350 rpm @ 1750 rpm |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Center Distance Code | 721 |
| Output Shaft Projection | Solid Right Output |
| Material | Cast Iron, Standard Paint |
| Output Speed | 350 rpm |
| Fan Cooled | No |
| Center Distance | 2.0625 in |
| Box Length | 6 in |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Input HP @ RPM | 2.33 hp @ 1150 rpm, 3.66 hp @ 1750 rpm |
| Series | 700 |
| Output RPM @ 1750 rpm Input | 350 rpm |
| Input Configuration | Shaft Input |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Torque Out @ 1150 rpm | 575 in lb |
| Torque Out @ 1750 rpm | 620 in lb |
| Rated Efficiency | 94% |
| Max. Input HP @ 100 rpm | 0.3 hp |
| Output Shaft | Solid |
| Lubrication | None |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Standard | AGMA Service Class II |
| Shaft Assembly Code | J |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Family Name | Std Unit |
| Motor Application | General Purpose |
| Output (Shaft or Bore) Size | 1 in |
| HP @ RPM | 3 hp @ 1800 rpm |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Output Torque | 620 lb-in |
| Ratio | 5:1 |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Output Configuration | Right Output |
| Frame | N/A |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Weight | 24.1 LB |
| EAN or UPC | 781711516836 |
