Page 1050 - Tungaloy Catalog

Technical Reference
Standards on Tapers
Taper shank for machining center
(Japan Machine-Tool Builder’s Association Standard)

7/24 taper
7/24 taper

(unit : in)
R 4

R 1
Code øD1 øD2 t1 t2 t3 t4 ød1 ød2 ød3 L (min.) (min.) R 3 g (min.) b1 t5
R2
BT30 46 38 20 8 13.6 2 31.75 14 12.5 48.4 34 24 7 M12 17 16.1 16.3
BT40 63 53 25 10 16.6 2 44.45 19 17 65.4 43 30 9 M16 21 16.1 22.6
BT45 85 73 30 12 21.2 3 57.15 23 21 82.8 53 38 11 M20 26 19.3 29.1
BT50 100 85 35 15 23.2 3 69.85 27 25 101.8 62 45 13 M24 31 25.7 35.4

HSK Taper Shank
(Hollow taper interface with flange contact surface. ISO12164-1:2001(E))

R4
60° R5 R5

Technical Reference øD2(max) øD1 øD W2 W1

øD3
R 3
14 ød R2 R1

(unit : in)
Style A øD øD1 øD2 øD3 ød R 1 R2 R3 R4 R5 W1 W2
HSK-A32 32 24 26 37 4 16 20 3.2 16 13 9 7
HSK-A40 40 30 34 45 20 4 17 11 9
HSK-A50 50 38 42 59.3 25 5 21 14 12
HSK-A63 63 48 53 72.3 7 32 26 6.3 18 26.5 18 16
HSK-A80 80 60 67 88.8 40 8 34 20 18
HSK-A100 100 75 85 109.75 50 29 10 20 44 22 20

14–32