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 1.181 3.150 .059-.394 1.181 3.937 .098-.630 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
• Max size NEW BABY COLLET (NBC10-10AA for GTG5/GTG6 | NBC16-16AA for GTG4), nut and 2 tightening wrenches are included; other size collets must be ordered separately • 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
A stop block is required.
ACCESSORIES
COLLET PG. 378
WRENCH PG. 392
STOP BLOCK PG. 429
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
112
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