Series A 7Z43 Teflon-filled acetal bearings and Series A 7Z40 oil-impregnated sintered bronze bearings are both self-lubricating. Offered in 6 sizes with IDs from 0.189-0.501 in., Series A 7Z43 carries maximum radial loads from 28-320 lb and runs at maximum speeds from 3,300-13,000 rpm. Available in 6 sizes with bearing IDs from 0.126-0.501 in., Series A 7Z40 offers maximum radial load ranges from 65-600 lb and maximum speeds from 5,100-20,000 rpm.