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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
| Output Shaft Projection | Solid Right Output |
| Standard | AGMA Service Class II |
| Input Power Rating | 3.66 hp, 2.729 kW |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Style | Right Angle |
| HP @ RPM | 3 hp @ 1800 rpm |
| Series | 700 |
| Ratio | 5:1 |
| Output Bore Shaft Dia. | 1 in |
| Output Speed | 350 rpm |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Base Mounting Attachment | No Base |
| Output Torque Rating Range [Min] | 500 lb-in, 60 Nm |
| Reduction Type | Single |
| Torque Out @ 1150 rpm | 575 in lb |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Frame | N/A |
| Input Configuration | Shaft Input |
| Output Shaft | Solid |
| Output Configuration | Right Output |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Bolt Center | 6 3/8 in x 4 11/16 in |
| Family Name | Std Unit |
| Housing Material | Cast Iron |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Material | Cast Iron, Standard Paint |
| Center Distance | 2.0625 in |
| Input HP @ RPM | 2.33 hp @ 1150 rpm, 3.66 hp @ 1750 rpm |
| Lubrication | None |
| Output Torque Rating Range [Max] | 749 lb-in, 84 Nm |
| Box Height | 6 3/8 in |
| Use With | 721 |
| Output Torque @ RPM | 575 in lb @ 1150 rpm, 620 in lb @ 1750 rpm |
| Center Distance Code | 721 |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Torque Out @ 1750 rpm | 620 in lb |
| Max. Input HP @ 100 rpm | 0.3 hp |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Worm Position | Universal |
| Frame Size | Shaft Input, Not a C-Face |
| Motor Application | General Purpose |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Shaft Assembly Code | J |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Media Mapping Output | J |
| Output Torque | 620 lb-in |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Box Width | 3 13/16 in |
| Output RPM @ 1750 rpm Input | 350 rpm |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Input Motor HP | 2 |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Washdown Duty | No |
| Output RPM @ Input RPM | 350 rpm @ 1750 rpm |
| Box Length | 6 in |
| Fan Cooled | No |
| Output (Shaft or Bore) Size | 1 in |
| Rated Efficiency | 94% |
| Input (Shaft or Bore) Size | 5/8 in |
| Weight | 24.1 LB |
| EAN or UPC | 781711516836 |
