BIG DAISHOWA High Performance Tooling Solutions Vol 5

BASIC ARBORS

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

L

L

L 1

L 1

MT No.

MT No.

Fig. 2

Fig. 1

L

L 1

L 2

MT No.

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

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

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

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

1

1.260 1.575

—

—

1 2 1 2 1 2 2

.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

158

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