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- 5 5/32" Center Distance
- 50:1 Ratio
- Shaft Input
- Single, Solid Shaft, Right Output, 1 3/4"
- Output Relation to Base Horizontal
description
- Worm gear drives' recess action gear design provides for more efficient operation and greater durability
features
- Tapered roller bearings on high speed shaft on models 321 and larger
- 131 through 261 are ball bearings
- Tapered roller bearings on the low speed shaft (except 131 is a ball bearing)
- Adjustable base kit features elongated slots for mounting bolts and adjusting screws for ease of positioning
- Universal base kits feature interchangeability
- Side mounting kits for side wall and ceiling mounting
- NEMA "C" Flange Adapter kits for direct mounting to electric motor
| Base Description | None |
| Base | No |
| Ratio | 50:1 |
| Fan Cooled | No |
| Output Configuration | Single, Solid Shaft |
| Motor Application | General Purpose |
| Reduction Type | Single Reduction |
| HP @ RPM | 3 hp @ 1200 rpm, 3 hp @ 1800 rpm |
| Family Name | 521 |
| Output Shaft Position | Right |
| Output Torque @ RPM | 8500 in lb @ 1750 rpm, 10710 in lb @ 1150 rpm |
| Lubrication | None |
| Output RPM @ 1750 rpm Input | 35 rpm |
| Thermal Input Horsepower @ RPM | 3.3 hp @ 1150 rpm, 3.76 hp @ 1750 rpm |
| Bearing Type | Tapered |
| Thermal Output Torque @ RPM | 4606 in lb @ 1750 rpm, 6439 in lb @ 1150 rpm |
| Bolt Center Length x Bolt Center Width | 9 1/2 in x 3 3/4 in |
| Base to Centerline of Input Shaft | 10 35/64 in |
| Washdown Duty | No |
| Max. Overhung Load @ 1750 rpm | 2600 lbf |
| Input Configuration | Shaft Input |
| Box Height | 13.167 in |
| Frame Size | Shaft Input, Not a C-Face |
| Worm Position | Universal |
| Output Relation to Base | Horizontal |
| Bolt Center | 9 1/2 in x 3 3/4 in |
| Box Length | 11 3/8 in |
| Thermal Input Horsepower @ 1750 RPM | 3.76 hp |
| Torque Out @ 1750 rpm | 8500 in lb |
| Input Shaft Position | Facing You |
| Frame | N/A |
| Torque Out @ 1150 rpm | 10710 in lb |
| Input HP @ RPM | 5.49 hp @ 1150 rpm, 6.94 hp @ 1750 rpm |
| Center Distance | 5.15625 in |
| Output Relation to Input(with I/P Facing you, worm top) | Right |
| Input Relation to Base | Horizontal |
| Input (Shaft or Bore) Size | 1 1/4 in |
| Output RPM @ Input RPM | 35 rpm @ 1750 rpm |
| Output (Shaft or Bore) Size | 1 3/4 in |
| Box Width | 6 11/16 in |
| Base to Centerline of Output Shaft | 5 3/8 in |
| Housing Material | Cast Iron |
| Max. Overhung Load @ RPM | 2600 lbf @ 1750 rpm |
| Base Position | None |
| Weight | 128.0 LB |
| EAN or UPC | 662798056036 |
