BIG DAISHOWA High Performance Tooling Solutions Vol 2

SPEED INCREASERS

HIGH SPINDLE CLAMPING RANGE: Ø.059"-.630" For Higher Spindle Speeds

COOLANT

MAX 20,000 RPM

THROUGH

L

L 1

L 2

COOLANT

R

SPINDLE SYSTEM DUAL CONTACT

Catalog Number

Speed Ratio

Max RPM

Weight (lbs.)

Ød

ØD ØD1

L

L 1

L 2

S

Collet

BCV40-GTG5-10-155-65 BCV50-GTG6-10-163-80 BCV50-GTG4-16-182-80

.059-.394 .059-.394 .098-.630

1.181 3.150 1.181 3.937 1.654 4.331

6.10 6.42 7.17

.79 .79

2.28 2.48 2.48

2.559 3.150 3.150

NBC10 NBC10 NBC16

4.67 5.67 3.80

20,000 20,000 15,000

11.0 19.8 23.8

1.00

A stop block is required. ! CAUTION

• NEW BABY COLLET, nut and 2 tightening wrenches are included • The allowable torque is a calculated value of the drive system, and not the actual torque in cutting • The maximum diameter when using an end mill is Ø8mm (GTG5, GTG6) and Ø12 (GTG4) • A stop block is required when mounting on machines • For continuous rotation of over 30 minutes, the spindle speed should be set within 80% of the maximum speed

ACCESSORIES

COLLET PG. 362

WRENCH PG. 374

STOP BLOCK PG. 409

APPLICATION EXAMPLE

GTG5

GTG6

GTG6

GTG4

Solid carbide end mill Ø.315"/ 2 flutes

Solid carbide end mill Ø.236"/ 2 flutes

Solid carbide drill Ø.079"

Solid carbide end mill Ø.630"

Cutter

Workpiece

Duralumin (A-2017)

1055

Duralumin (A-2017)

Duralumin (A-2017)

Spindle Speed Cutting Feed

20,000 RPM

16,000 RPM

20,000 RPM

15,000 RPM

118.1 IPM

137.8 IPM

78.7 IPM

39.4 IPM

High metal removal rate 5.5 cu.in./min.

High metal removal rate 137.8 IPM

Extended tool life 1,200 holes by 1 drill

Surface roughness RMS max. .00008"

Results

ø.079"

.787"

.394"

.394"

.394"

.039"

.118"

.004"

• Results will vary depending on workpiece, cutting tool, machine model and other conditions • The rigidity and concentricity are often affected by the projection length of a cutting tool; it is recommended to keep the projection as short as possible

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