Jig Bushes by B&T Boneham and Turner

More catalogs by B&T Boneham and Turner | Jig Bushes | 24 pages | 2009-08-28

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Page 4 of Jig Bushes

standard jig bushes metric range pp headless type press fit bs 1098 pt 2 1977/iso 4247/din 179a this type of bush is normally used for all jigs where an economical bush is required they also afford the minimum spacing between bushes page 4 ph headed type press fit bs1098 pt 2 1977/iso 4247/din 172a this range is the same as type pp but headed the head is convenient for pressing the bush home the head is also useful when it is desired to feed down to a dead stop page 5 rd fixed and slip renewable these two features are incorporated on one bush which is used in conjunction with liner bushes and is held in place by a lock screw tenon or stop pin the bush is a slide fit in its corresponding liner the removable fixed feature of the bush is normally used on high production work when the bush can be easily and quickly replaced with a minimum loss of production the removable slip feature of the bush is used when more than one operation is carried out when the bush is instantly removable after each operation page 6 lp headless liner type this range is for use in conjunction with renewable fixed and slip type bushes page 7 lh headed liner type this range is the same as the plain liner but headed the shallow head can be left standing proud or countersunk flush page 7 standard increment bore sizes for metric jig bush range from 1.0mm to 3mm in steps of 0.05mm from 3mm to 14mm in steps of 0.1mm and including all 0.25mm and 0.75mm sizes from 14mm to 33mm in steps of 0.25mm from 33mm to 51mm in steps of 0.5mm from 51mm to 100mm in steps of 1.0mm note all other sizes are regarded as specials bushes with a bore size above 48mm are not stock items these bushes are manufactured against customer s order only usa bushings ansi standards including thin wall range available serrated serra-bond bushes available to order i.s.o limits for reference in connection with drill bushes unit 0.001mm nominal sizes over 3 6 10 18 30 50 80 2 limits for bores of reamer bushes h6 hole high 6 8 9 11 13 16 19 22 low 0 0 0 0 0 0 0 0 f7 hole high 16 22 28 34 41 50 60 71 low 6 10 13 16 20 25 30 36 n6 shaft high 10 16 19 23 28 33 39 45 low 4 8 10 12 15 17 20 23 m6 shaft high 8 12 15 18 21 25 30 35 low 2 4 6 7 8 9 11 13 h13 shaft high 0 0 0 0 0 0 0 0 low140 180 220 270 330 390 460 540 up to 3 6 10 18 30 50 80 120 high 18 23 27 31 38 46 low 11 15 18 21 25 30 -