CKN CONNECTION SYSTEM Lightweight design for large-diameter, long tools reduces tool moment and operator workload through a lightweight design, while delivering enhanced connection rigidity.
BORING CKN CONNECTION SYSTEM
Modular System for Flexible Length Combinations
Reduces tool moment and operator workload through a lightweight design, while delivering enhanced connection rigidity. CKN CONNECTION SYSTEM Lightweight Design for Large-Diameter, Long Tools
LIGHTER 18.3
LBS
Conventional CK Tool: 53.8 lbs.
CKN Tool: 35.5 lbs.
BBT50-CKB7-183 + CKB77-105 (×2) + EWN100-203CKB7
BBT50-CKN7-93 + CKN77-0DC + CKN77N-200ALT + CKN77-0DC + CKN77N-100ALT + EWN100-203CKB7
100°
Rigid Connection CKN uses three set screws to create a rigid connection, maintaining rigidity even with long aluminum tool assemblies. Because the three screws are not equally spaced at 120° intervals, the cutting-edge phase of the boring head remains constant.
2
Flexible Tool Length Configuration Modular components allow the tool length to be customized in .984" (25 mm) increments for optimal projection length (CKN7).
Aluminum Tube Extension
Double Connector
Example BBT50 shank with CKN7
20.866 (530mm)
.984
19.882 (505mm)
Compatible with Standard CK Finishing and Rough Boring Heads
18.898 (480mm)
.984
CKN SHANK
COOLANT
THROUGH
L
L
A
A
CK No.
CK No.
Fig. 1
Fig. 2
R
(BCV)
SPINDLE SYSTEM DUAL CONTACT
Catalog Number
Weight (lbs.)
CK No.
Fig.
øD
L
A
BCV40-CKN6-69 BCV50-CKN6-69 BCV50-CKN7-83
CKN6 CKN6 CKN7
2 1 2
2.500 2.500 3.543
2.72 2.72 3.27
3.94 3.94 6.30
3.0 7.6 9.8
(BBT)
Catalog Number
Weight (lbs.)
CK No.
Fig.
øD
L
A
BBT40-CKN6-64 BBT50-CKN6-94 BBT50-CKN7-93
CKN6 CKN6 CKN7
2 1 1
2.520 2.520 3.543
2.52 3.70 3.66
(1.46)
3.5
2.01 2.05
10.1 12.6
3
• The through-hole design allows for center-through coolant • The cutting edge of the attached head and the drive keyway are aligned in phase • Head and inserts are not included. Please order separately • Two CK blind screws and one CK set screw are assembled
(HSK)
L
L
Manual Clamping Hole
Manual Clamping Hole
A
CK No.
A
CK No.
Coolant Pipe (Optional)
Coolant Pipe (Optional)
Fig. 1
Fig. 2
Catalog Number
Weight (lbs.)
CK No.
Fig.
øD
L
A
HSK-A63-CKN6-79 HSK-A100-CKN6-94 HSK-A100-CKN7-93
CKN6 CKN6 CKN7
2 1 1
2.520 2.520 3.543
3.11 3.70 3.54
(2.09)
3.3 7.5 9.9
2.13
(2.52)
• The through-hole design allows for center-through coolant • The cutting edge of the attached head and the drive keyway are aligned in phase • Head and inserts are not included. Please order separately • Two CK blind screws and one CK set screw are assembled
CKN ACCESSORIES
COOLANT
DOUBLE CONNECTOR
THROUGH
L
CK No. C 1
L
.00
CK No. C 1
CK No. C 2
CK No. C 1
CK No. C 2
CK No. C 2
Fig. 1
Fig. 2
Fig. 3
Catalog Number
CK No. C 1
CK No. C 2
Weight (lbs.)
Fig.
øD 1
øD 2
L
CKN66-0DC v CKN66-20DC CKN77-0DC v CKN77-25DC CKN76-20DC
1 2 1 2 3
—
— — — —
.00 .79 .00 .98 .79
1.0 2.1 2.1 4.4 3.7
CKN6
CKN6
2.520
—
CKN7
CKN7
3.543 3.543
CKN7
CKN6
2.520
• The through-hole design allows for center-through coolant • Two CK set screws are included • The models marked with v require a specified installation sequence
ALUMINUM TUBE EXTENSION
L
Catalog Number
CK No. C 1
CK No. C 2
Weight (lbs.)
øD L
4
CKN66N-80ALT CKN66N-120ALT CKN77N-100ALT CKN77N-150ALT CKN77N-200ALT
3.15 1.1 4.72 1.8 3.94 3.4 5.91 5.0 7.87 6.6
CKN6 CKN6 2.520
CK No. C 1
CK No. C 2
CKN7 CKN7 3.543
• The through-hole design allows for center-through coolant • When using an extension, please note that the L/D ratio may cause vibration or chatter • Two CK blind screws and one CK set screw are assembled on the head side, while three CK set screws are assembled on the shank side
L
EXTENSION
Catalog Number
CK No. C 1
CK No. C 2
Weight (lbs.)
øD L
CKN66-100 CKN77-105
CKN6 CKN6 2.520 3.94 5.1 CKN7 CKN7 3.543 4.13 10.5
CK No. C 1
CK No. C 2
• The through-hole design allows for center-through coolant • When using an extension, please note that the L/D ratio may cause vibration or chatter • Two CK blind screws and one CK set screw are assembled; two CK set screws are included
L
REDUCTION
A
Catalog Number
CK No. C 1
CK No. C 2
Weight (lbs.)
øD 1
øD 2
L A
CKN76-106
CKN7 CKN6 3.543 2.520 4.17 3.50 6.4
CK No. C 2
• The through-hole design allows for center-through coolant • Two CK blind screws and one CK set screw are assembled; two CK set screws are included
CK No. C 1
CKN ACCESSORIES
COOLANT
FLANGE WITH SLIDE MECHANISM
FLANGE
THROUGH
4.606
1.772 1.969
.866
1.772 1.969
3º
3º
Coolant Nozzle Aluminum EWN Boring Head .0005"/ø Scale .0001"/ø Vernier
Coolant Nozzle
Aluminum EWN Boring Head
CK No.
CK No.
.0005"/ø Scale .0001"/ø Vernier
Aluminum Balance Weight
Flange Aluminum Slide
Aluminum Balance Weight
Catalog Number
Weight (lbs.)
CK No.
øD
Catalog Number
Weight (lbs.)
CK No.
øD
CKN6-FL200-270 CKN6-FL270-340
7.874-10.630 10.630-13.386
4.0 5.1
CKN6
CKN7-FLN135 (CKN7-FLN135/90)
CKN7
7.874-19.685
5.3
• Rough boring clamp bases and cartridges can also be used • The through-hole design allows for center-through coolant • Standard models have the cutting edge and drive keyway are aligned in phase (can be reconfigured to a 90° phase) • Two CK set screws are included
• Rough boring clamp bases and cartridges can also be used • The through-hole design allows for center-through coolant • Standard models have the cutting edge and drive keyway aligned in phase (for CKN7-FLN135/90, the cutting edge and drive keyway are offset by 90°) • Two CK set screws are included
5
CK BLIND SCREW Use with conventional CK connections.
CK SET SCREW
Catalog Number
CK No.
Thread Size Hex Size
Catalog Number CK6BS CK7BS
Thread Size
Hex Size
CK No.
CK6S CK7S
CKN6 CKN7
M12 P1
6mm
CKN6 CKN7
M12 P1
4mm 6mm
M20 P1.5
10mm
M20 P1.5
• Includes two screws and one wrench
• Sold individually
CONNECTING SCREWS FOR CKN AND CKB PRODUCTS
CK Blind Screw
CK Blind Screw Products with the CKN connection system (head side) are supplied with one CK set screw and two CK blind screws pre-installed. When combining CKN components, replace the CK blind screw at position A with a CK set screw. CK Set Screw A
CK Set Screw
A
A
A
CKB Pin
Alignment Mark Installation of CKB Products When installing a product with a CKB pin, remove the CKB pin before connecting the components. CK Set Screw
CKB Pin
Alignment Mark
CK Set Screw
For the Complete Line of BIG DAISHOWA Tooling, See Our High Performance Tooling Solutions Catalog
BIG DAISHOWA Inc. Tool Holders | Boring Tools | Cutting Tools | Workholding | Tool Measuring 2600 Huntington Blvd | Hoffman Estates, IL 60192 (224) 770-2999 | bigdaishowa@us.bigdaishowa.com | bigdaishowa.com
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