| Items |
 68514421139 Model 21903 Spring-Loaded Driver Pulleys - Imperial |
68514421141 Model 21903 Spring-Loaded Driver Pulleys - Imperial |
68514421142 Model 21903 Spring-Loaded Driver Pulleys - Imperial |
68514421143 Model 21903 Spring-Loaded Driver Pulleys - Imperial |
68514437323 Model 21903 Spring-Loaded Driver Pulleys - Imperial |
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| Description | 21903-3/4-PULLEY | 21903-7/8-PULLEY | 21903-1"-PULLEY | 21903-1-1/8-PULLEY | 21903-5/8-PULLEY | |||||
| Bore Diameter | 3/4 in | 7/8 in | 1 in | 1 1/8 in | 5/8 in | |||||
| Keyway Size | 3/16 x 3/32 in | 3/16 x 3/32 in | 1/4 x 1/8 in | 1/4 x 1/8 in | 3/16 x 3/32 in | |||||
| Model | 21903 | |||||||||
| Type | Adjustable Center - Driver | |||||||||
| Belt Size | 1922V | |||||||||
| Width | 2.500 in | |||||||||
| Outside Diameter | 8.250 in | |||||||||
| Max. Pitch Diameter (Dimension PD) | 8.030 in | |||||||||
| Min. Pitch Diameter (Dimension PD) | 2.700 in | |||||||||
| Overall Length | 6.750 in | |||||||||
| Ratio | 3:1 | |||||||||
| Weight | 13.60 lb | 13.38 lb | 13.38 lb | 13.38 lb | 13.38 lb | |||||
| Torque Capacity | 108.00 in·lb | |||||||||
| Motor Power at 1,150 rpm | 2.00 hp | |||||||||
| Motor Power at 1,750 rpm | 3.00 hp | |||||||||
| UPC Number | 21139 | 21141 | 21142 | 21143 | 37323 | |||||
| Cubic inches | 459.42188 in³ | |||||||||
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