BIG KAISER High Performance Tooling Solutions 2018-2019

BASIC ARBORS
MORSE TAPER HOLDER
Precise finish of the Morse taper bore provides stable runout accuracy.
A.2
L
L1
BBT/BT
øD
Fig. 1
MT No.
L
L1
L
L1
øD
øD1
L2
øD
Fig. 2
MT No.
Fig. 3
MT No.
R
S P I N D L E S Y S T E M
DUAL CONTACT
BIG-PLUS ® Taper
Catalog Number
Standard Taper
Catalog Number
Fig. MT øD øD1 L L1 L2
Weight
(lbs.)
Reference Drill Dia.
(JIS B4302 1)
BBT30-MTA1-60 BT30-MTA1-60
1 .984
2.36 1.50
1.1 .118-.551
-MTA2-60 -MTA2-60 1 2 1.260 — 2.36 1.50 — 1.2 .571-.906
-MTA3-80 -MTA3-80 3 1.575 3.15 2.28 1.6 .925-1.240
BBT40-MTA1-45 BT40-MTA1-45 1
1.77 .71
2.2
1 .984 —
—
.118-.551
-120 -120 2 4.72 3.66 2.9
-MTA2-45 -MTA2-45 1
1.77 .71
2.2
2 1.260 —
—
.571-.906
-120 -120 2 4.72 3.66 3.5
-MTA3-75 -MTA3-75 1
2.95 1.89
2.2
3 1.575 —
—
.925-1.240
-135 -135 2 5.31 4.25 3.7
-MTA4-90 -MTA4-90 2 4 1.969 — 3.54 2.48 — 3.5 1.260-1.969
BBT50-MTA1-45 BT50-MTA1-45 1
1.77 .28
8.6
-120 -120
— 4.72 3.23 — 9.3
2
-180 -180 1 .984
7.09 5.59 9.5
.118-.551
-210
1.614 8.27 6.77
9.7
— 3
3.35
-250 1.693 9.84 8.35 10.6
-MTA2-45 -MTA2-45 1
1.77 .28
8.6
-135 -135
— 5.31 3.82 — 9.5
2
-180 -180 7.09 5.59 10.1
2 1.260
.571-.906
-210
1.791 8.27 6.77
10.6
-250 — 3
1.909 9.84 8.35 3.74 11.5
-300 1.949 11.81 10.31 12.8
136