BIG DAISHOWA High Performance Tooling Solutions Vol 3

BASIC ARBORS

MORSE TAPER HOLDER Precise finish of the Morse taper bore provides stable runout accuracy.

L

L 1

MT No.

Fig. 1

L

L

L 1

L 1

L 2

MT No.

MT No.

Fig. 2

Fig. 3

R

SPINDLE SYSTEM DUAL CONTACT

BIG-PLUS Taper Catalog Number BBT30-MTA1-60 BBT30-MTA2-60 BBT30-MTA3-80 BBT40-MTA1-45 BBT40-MTA1-120 BBT40-MTA2-45 BBT40-MTA2-120 BBT40-MTA3-75 BBT40-MTA3-135 BBT40-MTA4-90 BBT50-MTA1-45 BBT50-MTA1-120 BBT50-MTA1-180 BBT50-MTA1-210 BBT50-MTA1-250 BBT50-MTA2-45 BBT50-MTA2-135 BBT50-MTA2-180 BBT50-MTA2-210 BBT50-MTA2-250 BBT50-MTA2-300

Standard Taper Catalog Number BT30-MTA1-60 BT30-MTA2-60 BT30-MTA3-80 BT40-MTA1-45 BT40-MTA1-120 BT40-MTA2-45 BT40-MTA2-120 BT40-MTA3-75 BT40-MTA3-135 BT40-MTA4-90 BT50-MTA1-45 BT50-MTA1-120 BT50-MTA1-180

Weight (lbs.)

Reference Drill Dia. (JIS B4302 1)

Fig.

MT

ØD

ØD 1

L

L 1

L 2

1 2 3

.984

2.36 2.36 3.15 1.77 4.72 1.77 4.72 2.95 5.31

1.50 1.50 2.28

1.1 1.2 1.6 2.2 2.9 2.2 3.5 2.2 3.7 3.5 8.6 9.3 9.5 9.7

.118-.551 .571-.906 .925-1.240

1

1.260 1.575

—

—

1 2 1 2 1 2 2 1

.71

1

.984

—

—

.118-.551

3.66

.71

2

1.260

—

—

.571-.906

3.66 1.89 4.25 2.48

3

1.575

—

—

.925-1.240

4

1.969

— 3.54

—

1.260-1.969

1.77 4.72 7.09 8.27 9.84 1.77 5.31 7.09 8.27 9.84

.28

3.23 5.59 6.77 8.35

—

—

2

.118-.551

1

.984

1.614 1.693

—

3

3.35

10.6

BT50-MTA2-45 BT50-MTA2-135 BT50-MTA2-180

1

.28

8.6 9.5

—

3.82 5.59 6.77 8.35

—

2

10.1 10.6 11.5 12.8

2

1.260

.571-.906

1.791 1.909 1.949

—

3

3.74

11.81

10.31

148

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