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Boston Gear
SBKF721B50B5G
700 Series C-Face Quilled Bost-Kleen Reducer w/Stainless Epoxy
Item #102901186
- 2 1/16" Center Distance
- 50:1 Ratio
- 56C Frame
- C-Face Quilled Input
- Left Output
features
- Washable
- Corrosion-resistant
- Cast iron housing
- Plated pressure relief valves
- Double lipped oil seals
- Excluder seal on output shaft
- Hard nontoxic metallic finish
- 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
compliances
- 0
caution
- Must be filled to the proper level with the recommended lubricant for your application before operation
| Box Length | 6 in |
| Thermal Input Horsepower @ 1750 RPM | N/A |
| Fan Cooled | No |
| Base to Shaft Center Height w/Low Vert. Base Kit | 3.13 in |
| Output RPM @ 1750 rpm Input | 35 rpm |
| Base to Centerline of Input Shaft | 5 1/16 in |
| Torque Out @ 1150 rpm | 750 in lb |
| Bolt Center | 6 3/8 in x 4 11/16 in |
| Reduction Type | Single Reduction |
| Input Configuration | C-Face Quilled |
| Lubrication | None |
| Output (Shaft or Bore) Size | 1 in |
| Max. Overhung Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| Max. Thrust Load @ RPM | 700 lb/in @ 1150 rpm, 700 lb/in @ 1750 rpm |
| 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 |
| Use With | 721 |
| Output RPM @ Input RPM | 35 rpm @ 1750 rpm |
| Base to Shaft Center Height w/High Vert. Base Kit | 4.88 in |
| Motor Application | Washdown Duty |
| Input (Shaft or Bore) Size | 5/8 in |
| Washdown Duty | Yes |
| Frame Size | 56C |
| Frame | 56C |
| Ratio | 50:1 |
| Box Height | 7 3/32 in |
| Box Width | 5 3/16 in |
| Bore Code | B5 |
| Family Name | SBKF |
| Output Torque @ RPM | 750 in lb @ 1150 rpm, 857 in lb @ 1750 rpm |
| Installed Options | High Horizontal Base |
| Worm Position | Top |
| Housing Material | Cast Iron, Stainless Steel Epoxy Coating |
| Bolt Centers w/ Vertical Base Kits (in) | 8 3/8 x 4 7/8 |
| Bolt Centers w/ Vertical "J" Base Kit (in) | 8.63 x 2.63 |
| Output Configuration | Left Output |
| Base | Yes |
| Base to Shaft Center Height w/Vert. "J" Base Kit | 3.94 in |
| Base to Centerline of Output Shaft | 3 in |
| Max. Overhung Load @ 1750 rpm | 700 lb/in |
| Shaft Assembly Code | G |
| Torque Out @ 1750 rpm | 857 in lb |
| Max. Input HP @ 100 rpm | 0.057 hp |
| Max. Thrust Load @ 1150 rpm | 700 lb/in |
| Center Distance | 2.0625 in |
| Input HP @ RPM | 0.38 hp @ 1150 rpm, 0.66 hp @ 1750 rpm |
| HP @ RPM | 0.3333333 hp @ 1200 rpm, 0.5 hp @ 1800 rpm |
| Weight | 29.0 LB |
