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| Bore: | 1-1/2" | 
| Chain Number & Pitch : | 50 / 5/8" | 
| Keyway: | 3/8" x 3/16" | 
| Length Through Bore: | 1" | 
| Material: | Steel | 
| OD: | 4.321" | 
| Teeth: | 20 |