These are Lovejoy L050 components that I got from Enco USE-ENCO.com, phone 1(800)8733626, cost about $5.15 for the three component assembly. These will take up to 3/4 hp @18000 rpm, 26.3in./lbs. torque, and allow some misalignment. There is very little/no free play on the acme shaft or motor shaft hubs. There are other sizes available up to 5/8 in.
Enco pns
1/4 in bore hub, 990-4044, $1.94, mfg. M646220
1/2 in bore hub, 990-4046, $1.94, mfg. M735580
buna N spider, 990-4042, $1.27, mfg. P00CH |