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Brand New Industrial Sewing Machine Clutch Motor Pulley. Bore: 3/4" (Shaft Size) This pulley is available in following sizes. Select pulley size from the drop down option menu. #613 (Inside diameter 1-3/8", Outside diameter 2") #614 (Inside diameter 1-1/2", Outside diameter 2-1/8") #615 (Inside diameter 1-5/8", Outside diameter 2-1/4") #616 (Inside diameter 1-3/4", Outside diameter 2-3/8") #617 (Inside diameter 1-7/8", Outside diameter 2-1/2") #620 (Inside diameter 2", Outside diameter 2-5/8") #621 (Inside diameter 2-1/8", Outside diameter 2-3/4") #622 (Inside diameter 2-1/4", Outside diameter 2-7/8") #623 (Inside diameter 2-3/8", Outside diameter 3") #624 (Inside diameter 2-1/2", Outside diameter 3-1/8") #625 (Inside diameter 2-5/8", Outside diameter 3-1/4") #626 (Inside diameter 2-3/4", Outside diameter 3-3/8") #627 (Inside diameter 2-7/8", Outside diameter 3-1/2") #630 (Inside diameter 3", Outside diameter 3-5/8") #631 (Inside diameter 3-1/8", Outside diameter 3-3/4") #632 (Inside diameter 3-1/4", Outside diameter 3-7/8") #633 (Inside diameter 3-3/8", Outside diameter 4") #634 (Inside diameter 3-1/2", Outside diameter 4-1/8") #635 (Inside diameter 3-5/8", Outside diameter 4-1/4") #636 (Inside diameter 3-3/4", Outside diameter 4-3/8") #637 (Inside diameter 3-7/8", Outside diameter 4-1/2") #640 (Inside diameter 4", Outside diameter 4-5/8") #641 (Inside diameter 4-1/8", Outside diameter 4-3/4") #642 (Inside diameter 4-1/4", Outside diameter 4-7/8") #644 (Inside diameter 4-1/2", Outside diameter 5-1/8") #650 (Inside diameter 5", Outside diameter-5/8")