Drill_Bushes

Ref: DIN179 Headless Drill Bush (Liner Bush) Specification: Hardened and tempered, ground intenally and externally Type A : Bore radiused at one end Type B : Bore radiused at both ends, available on request These drill bushes are supplied with a lead in chamfer or relief Material: Case-hardened steel selected by manufacturer Hardened: 740 + 80 HV10 For applications involving positioning, we recommend ISO8734A dowel pins, see page 16 *Tolerance range H6 or H7 for drilling jig/fixture How to Order: Ref: DIN179 Type=A d 1 =10 l 1 =12 => DIN179A 10,0-12 d 1 d 2 * F 7 Short Medium Long n 6 Above 0.4 - 0.8 - - 0.9 - 1.0 1.1 - 1.8 4 1.9 - 2.6 5 2.7 - 3.3 6 3.4 - 4.0 7 4.1 - 5.0 8 5.1 - 6.0 10 6.1 - 8.0 12 8.1 - 10.0 15 10.1 - 12.0 18 12.1 - 15.0 22 15.5 - 18.0 26 18.5 - 22.0 30 22.5 - 26.0 35 26.5 - 30.0 42 30.5 - 35.0 48 35.5 - 42.0 55 42.5 - 48.0 62 48.5 - 55.0 70 55.5 - 63.0 35 67 78 78 4 3 l 1 r tr 6 1 0.01 9 - 8 Graded bores d 1 < 15 in increments of 0.1 >15 increments of 0.5mm 2 3 3.5 25 45 0.04 30 56 67 0.02 12 20 25 16 28 36 20 36 45 10 16 56 12 16 20 1.5 15

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