This mechanical expanding cantilevered chuck is available in widths of 6 to 36 in., for I.D. cores from 6 to 13 in. Other sizes from 14 in. I.D. and up are available upon request. Maximum weight capacity is 500lb and maximum linespeed is 1000 fpm. Chuck is self-centering to within .020 in. Can be supplied in hard-coat aluminum or stainless steel. Handwheel control provides simple, trouble free operation, with no air gun or special wrenches required. Unit can be easily adapted to existing unwind or lock core rewind.