| SERVICE FACTORS FOR DESIGNING V-BELT DRIVES | ||||||
| Driven Machine Type | Driver Type | |||||
| ELECTRIC MOTORS | ELECTRIC MOTORS | |||||
| AC Normal Torque | AC High Torque, Hi-Slip | |||||
| Squirrel Cage | Induction and Single | |||||
| Please see the examples of various | Sychronous | Phase, Slip Ring | ||||
| machines below. Select the group | Split Phase | DC Compound Wound | ||||
| that most closely matches your | DC Shunt Wound | 1 Cylinder Internal Combustion | ||||
| application. | Internal Combustion Engines | Line Shafts, Clutched | ||||
| Intermittent Service | Normal Service | Continuous Service | Intermittent Service | Normal Service | Continuous Service | |
| 3-5 Hours / Day or Seasonal | 8-10 Hours per Day | 16-24 Hours per Day | 3-5 Hours / Day or Seasonal | 8-10 Hours per Day | 16-24 Hours per Day | |
| Blowers and Exhaust Fans | ||||||
| Agitators | ||||||
| Centriugal Pumps | 1.0 | 1.1 | 1.2 | 1.1 | 1.2 | 1.3 |
| Fans in General up to 10 HP | ||||||
| Light Duty Conveyors | ||||||
| Compressors: Centrifugal | ||||||
| Centrifuges | ||||||
| Conveyors: Belt; Coal, Ore, Sand | ||||||
| Dough Mixers | ||||||
| Fans: Over 10 HP | ||||||
| Generators | ||||||
| Laundry Equipment | 1.1 | 1.2 | 1.3 | 1.2 | 1.3 | 1.4 |
| Machine & Boring, Grinders, | ||||||
| Milling, Shapers | ||||||
| Paper Machinery | ||||||
| Presses, Punches, Shears | ||||||
| Printing Machinery | ||||||
| Pumps: Centrifugal, Gear | ||||||
| Screens: Revolving, Vibratory | ||||||
| Positive Displacement Blowers | ||||||
| Textile Machinery | ||||||
| Brick Machinery | ||||||
| Compressors: Piston | ||||||
| Conveyors: Drag, Elevator, Pan, Screw | ||||||
| Elevators: Bucket | 1.2 | 1.3 | 1.4 | 1.4 | 1.5 | 1.6 |
| Exciters | ||||||
| Extractors | ||||||
| Hammer Mills | ||||||
| Paper Pulpers | ||||||
| Pulverizers | ||||||
| Pumps: Piston | ||||||
| Rubber Calendars, Extruders, Mills | ||||||
| Crushers (Gyratory-Jaw-Roll) | ||||||
| Hoists | 1.3 | 1.4 | 1.5 | 1.5 | 1.6 | 1.8 |
| Ball, Rod or Tube Mills | ||||||
| Sawmill Machinery | ||||||
| Triplex Piston Slush Pump | 1.0 | 1.0 | 1.4 | 1.0 | 1.0 | 1.4 |
| Duplex Piston Slush Pump | 1.0 | 1.0 | 2.0 | 1.0 | 1.0 | 2.0 |
| Chokable Equipment | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |