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Boston Gear
HF7721-15-B5-H-P20
700 Series 15:1 Ratio Hollow Assembly Single Reduction Worm Gear Reducer Without Base
Item #101795383
- 1.50 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
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| HP @ RPM | 1 hp @ 1800 rpm |
| Motor Frame Size | B556C |
| Family Name | HF |
| Base to Centerline of Output Shaft | 2 9/32 in |
| Center Distance Code | 721 |
| Standard | AGMA Service Class I |
| Media Mapping Output | H |
| 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 |
| Base to Centerline of Input Shaft | 4 11/32 in |
| Shaft Assembly Code | H |
| Keyway Size | 3/16 x 3/32 |
| Output RPM @ Input RPM | 88 rpm @ 1750 rpm |
| Output Speed | 116.7 rpm |
| Washdown Duty | No |
| Output RPM @ 1750 rpm Input | 87.5 rpm |
| Output Shaft Projection | Hollow Output |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Torque Out @ 1750 rpm | 892 in lb |
| Output Torque Rating Range [Min] | 750 lb-in, 85 Nm |
| Torque Out @ 1150 rpm | 782 in lb |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Ratio | 15:1 |
| Input HP @ RPM | 0.86 hp @ 1150 rpm, 1.4 hp @ 1750 rpm |
| Output Bore Shaft Dia. | 1.25 in |
| Bore Code | B5 |
| Media Mapping Hollow Bore | P20 |
| Input Power Rating | 1.72 hp, 1.283 kW |
| Center Distance | 2.0625 in |
| Box Length | 6 in |
| Lubrication | None |
| Frame Size | 56C |
| Output (Shaft or Bore) Size | 1 1/4 in |
| Output Shaft | Hollow |
| Output Torque @ RPM | 782 in lb @ 1150 rpm, 892 in lb @ 1750 rpm |
| Max. Input HP @ 100 rpm | 0.11 hp |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Box Width | 4 45/64 in |
| Output Torque | 841 lb-in |
| Base to Shaft Center Height w/Std. Base Kit | 4.81 in |
| Reduction Type | Single |
| Base Mounting Attachment | No Base |
| Motor HP | 0.75 hp |
| Bolt Center | 5 in x 2 7/8 in |
| Output Configuration | Hollow Output |
| Worm Position | Universal |
| Rated Efficiency | 90% |
| Bolt Center Length x Bolt Center Width | 5 in x 2 7/8 in |
| Housing Material | Cast Iron |
| Use With | 721 |
| Output Torque Rating Range [Max] | 999 lb-in, 109 Nm |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Box Height | 6 3/8 in |
| Motor Application | General Purpose |
| Input Configuration | C-Face Quilled |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Input Motor HP | 1.50 |
| Frame | 56C |
| Style | Right Angle |
| Fan Cooled | No |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Bolt Centers w/ Std. Base Kit (in) | 6 3/8 x 4 11/16 |
| Series | 700 |
| Media Mapping Style | HF |
| Input (Shaft or Bore) Size | 5/8 in |
| Material | Cast Iron, Standard Paint |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Weight | 26.1 LB |
| EAN or UPC | 781711630297 |
