E139 GUIDE BUSH FOR PUNCH, ISO 8978 Material: WS Hardness 60 ± 2 HRC Description of FIBRO materials for tool and die components see at the beginning of Chapter E. Execution: Diameters d1 , d2 and starting lead ground. H6 l 1 1 d 2 d n6 Ø0,01 A A r 2621. starting lead Gradation d1 d1 d2 l1 r 1 - 2,4 0.1 5 8 1 1,6 - 3 0.1 6 12.5 1 2 - 3,5 0.1 8 12.5 1.5 3 - 5 0.1 10 16 2 4 - 7,2 0.1 13 16 2 6 - 8,8 0.1 16 20 2 7,5 - 11,3 0.1 20 20 2.5 11 - 16,6 0.1 25 25 2.5 15 - 20 0.5 32 25 4 18 - 27 0.5 40 32 4 26 - 36 0.5 50 40 4 2621. Guide bush for punch, ISO 8978 Ordering Code (example): Guide bush for punch, ISO 8978 = 2621.1. Diameter of conduit d1 6 mm = 0600. Outer diameter d2 16 mm = 1600 Order No = 2621.1. 0600. 1600
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