HIGH SPEED SLIM CHUCK （ STRAIGHT TYPE ）
MAX. 40,000 r/min
Explanation of the Code No.
φ C 1 H G No. (Option)
NBT40 SK
10
C
90
P
SK Collet
Nominal Gauge Length mm Symbol of High Speed
φ C
φ D
Centre Through Tool Coolant
φ C
ℓ
Chucking Capacity
ℓ 1
SK-P
L
Symbol of New Slim Chuck
Fig. 1
Shank No.
Centre Through MAX. 7MPa
JAPAN, USA, EU, KOREA PAT.
・ When SK J type nut is used, the total chuck length will be extended by 6mm. ・ When using SK-A collets or SK-AC collets, or when gripping a cutting tool smaller than the nominal diameter on SK collets, the total length will be shortened by about 3 mm. Please be careful when you check the interference.
Weight （ kg ）
G No. （ Option ） SKG 6- 6HG
ℓ 33 56 22 35 50 65 35 50 65 37 52 67 37 52 67 67 51 30 60 32 45 48 73 28 43 32 43 58 88
ℓ 1 33 65 22 35 50 65
C
C 1 19.5 32
MAX. r/min
L 60 90 45 60 75 90 60 75 90 60 75 90 60 75 90
Code No.
D
H
Collet
TAPER
NBT30-SK 6C- 60P - 90P -SK10C- 45P
0.7 0.7 0.8 0.9 1.0 1.0 1.1 1.0 1.1 1.1 1.2 1.2 0.7 0.9 1.2 1.5 1.1 1.0 1.4 1.2 1.2 1.1 1.4 1.6 1.2 1.3 1.4 1.6 1.8 1.3 1.5 1.5 1.7 1.9 1.8 1.7 2.0 1.4 1.3 1.6 2.0 3.8 4.0 3.9 4.2 4.6 4.4 4.7 5.1 4.9 4.5 4.7 4.9 5.2 5.6 5.4 4.3 5.0 4.6
26 ～ 31
0.7 ～ 6.0
19.5
SK 6
- 60P - 75P - 90P
33 ～ 41
0.9 ～ 10.0
SKG10-10HG
27.5
27.5
SK10
40,000
-SK16C- 60P - 90P - 75P -SK13C- 60P - 90P - 75P -SK25 - 90P - 90P -SK20 - 60P -SK20C- 75P
37 52 67 35 50 65 37 52 67 67 60 30 90 32 60 45
No.30
39 ～ 51 47 ～ 52 45 ～ 52 45 ～ 57 65 ～ 70 50 ～ 55 47 ～ 63 55 ～ 75 26 ～ 31
2.75 ～ 13.0
SKG13-10HG
33
33
SK13
SKG16-12HGE SKG16-10HG SKG16-12HG
2.75 ～ 16.0
40
40
SK16
＊
SKG-12S
30,000
3.5 ～ 20.0 7.5 ～ 25.4 0.7 ～ 6.0
SKG20-12HG SKG20-12HGE
48.5
48.5
SK20
＊
SK25
SKG-12
90 90 60 120
55
55
- 90P NBT40-SK 6C- 60P -120P
32 19.5
SKG 6- 6HG
19.5
SK 6
-SK10C- 60P
90 75 60
27.5
- 90P -120P -150P - 75P
33 ～ 41
0.9 ～ 10.0
27.5
SK10
SKG10-10HG
40 34.5
120 150
90 118
30,000
-SK16C- 60P -SK13C- 60P - 90P - 75P -120P -150P
60
58 43 28
90 120 150 75
33
39 ～ 51
2.75 ～ 13.0
33
SK13
SKG13-10HG
88 118
No.40
40
45 ～ 52
60 75
32 43
SKG16-10HG
- 90P - 75P -120P -150P
2.75 ～ 16.0
58 88 118
90 120 150 75 90 60 120 90 75 120 105 165 135 105 165 135 105 135 165 105 165 135 105 165 135 105 165 135
58 88 118
SK16
40
40
45 ～ 57
SKG16-12HG
25,000
60 ～ 65 60 ～ 70 57 ～ 63 47 ～ 63
- 75P -SK20C- 60P
SKG20-16HG
61 47 91 45 32 60 90 55 60 57 70 75 62 92 62 90 92 62
61 47 91 45 32 60 90 64
3.5 ～ 20.0
SK20
48.5
48.5
SKG20-18HG
- 90P -120P
- 90P -SK25C- 75P -120P
SKG25-18HGE SKG25-18HGD SKG25-24HG
7.5 ～ 25.4
SK25
55
55
20,000
NBT50-SK 6C-105P -165P -135P -SK10C-105P
0.7 ～ 6.0
26 ～ 31
114 92 57 114 92 62 92 122
SK 6
19.5
SKG 6- 6HG
32
27.5 32
0.9 ～ 10.0
33 ～ 41
-165P -135P
SK10
27.5
SKG10-10HG
-SK16C-105P -165P -135P -SK13C-105P -165P -135P -SK25C-105P -165P -135P -SK20C-105P -165P -135P
40 50 33 45
39 ～ 51
2.75 ～ 13.0
SK13
20,000
33
SKG13-10HG
No.50
62
45 ～ 57
2.75 ～ 16.0
SK16
122 92
40
SKG16-12HG
62
3.5 ～ 20.0
47 ～ 63
SK20
122 92
122 92
48.5
SKG20-18HG
48.5
62
62
7.5 ～ 25.4
60 ～ 70
SK25
122 92
122 92
15,000
55
SKG25-24HG
55
★ Please refer
★ Please add "RP" at the end of the Code No. for Rust Proof Treatment Slim Chuck. e.g. NBT40-SKT10C-90P-RP
P.285 for TiN Bearing Nut.
★ Collet, adjust screw （ G No. ） and GH Handle are available as an option.
★ Please use MDSK J type nut & cap for the Centre through tool coolant .
P.255
The Code No. of the GH Handle is SK6C-P: GH6, SK10C-P: GH10, SK13C-P: GH12, SK16C-P: GH16, SK20C-P: GH20, SK25C-P: GH25 ★ P class or A type SK collet is highly recommended to use. P.283 ★ Code No. marked ＊ are not centre coolant tool coolant type. ★ Please refer P.285 for SK Coolant Solution.
GH Handle
P.299
181
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