MGPB1936 Report post Posted February 14, 2016 I'm a newbie to Industrial sewing machines and need to slow the brute down. I have just fitted a Jack JK 563A Motor to my Brother LS2 B837 and even at the slowest speed it is running to quickly. Is it possible to fit a smaller pulley to the motor and what is the size of the shaft? Any advice would be most welcome. Cheers Richard Quote Share this post Link to post Share on other sites
Wishful Report post Posted February 16, 2016 Most that I have seen are 3/4" but you can measure with calipers or even maybe a ruler Quote Share this post Link to post Share on other sites
