KNCS-2G
Sealed, low maintenance and flexible
■ Sealed ■ Quick jaw change
QUICK JAW CHANGE
Actual gripping force diagrams
260
180
220 240 180 200 140 160 100 120
F G
F
160
325-104
140
630-165
500-155
400-128
120
260-78
100
80
225-66
210-52
60
60 80 20 40
F G
170-43
3
40
F
20
0
500 1000 1500 2000 2500 3000 3500
0
1000 2000 3000 4000 5000 6000 7000
Speed (r.p.m.)
Speed (r.p.m.)
The data in the diagrams refer to 3-jaw chucks, newly maintained according to their service manuals using SMW-AUTOBLOK K05 grease. The static and dynamic gripping forces have been measured using standard soft top jaws, placed in a position not exceeding the outer diameter of the chuck.
Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly.
SMW-AUTOBLOK Type Mounting
325-104 630-165 Z220 Z300 A8 A11 Z300 Z380 A11 A15 Z300 Z380 A11 A15 Z380 A15 A 324 400 500 630 B 130 130 149 151 140 140 161 163 174 174 195 197 174 197 C 139.2 139.2 158.2 160.2 149.2 149.2 170.2 172.2 184 184 205 207 184 207 D H6 220 300 139.73 196.88 300 380 196.88 285.77 300 380 196.88 285.77 380 285.77 E 1 /E 2 268 330 420 585 420 F 144 180 207 217 G 1 M115 x 2 / 22 M138 x 2 / 22 M165 x 2 / 25 M175 x 2 / 25 G 2 M132 x 2 / 25 M160 x 2 / 25 M185 x 2 / 28 M195 x 2 / 28 K 25 / 28 32 42 42 L 28 28 47 49 32 32 53 55 42 42 63 65 42 65 M 104 128 155 165 N 171.4 235 171.4 235 235 330.2 235 330.2 235 330.2 235 330.2 330.2 330.2 O M16 M20 M16 M20 M20 M24 M20 M24 M20 M24 M20 M24 M24 P 130 152 180 195 Q 391 461 552 650 R 1 / R 3 M10 / 16 M12 / 18 M16 / 25 M16 / 25 R 2 M10 / 16 M12 / 18 M12 / 18 M12 / 18 S 6 8 8 8 a 32 32 45 45 b f7 12 12 18 18 c 122.2 133.2 167.1 209.7 d 1 36 43 53 53 d 2 34 42 48.2 49.75 f H7 20 26 30 30 g 40 54 60 60 k M12 / 17 M12 / 17 M16 / 34 M16 / 34 l 9.3 9.3 10 10 m 3 3 4 4 n 6 7 9 9 o 155.7 / 106.2 182.3 / 121.8 225 / 141 270.5 / 179.5 p 111.7 / 62.2 143.3 / 82.2 164 / 80 170.5 / 79.5 - 5.5 5.5 7 7 r 49.5 60.5 84 91 9 11 12 13 400-128 500-155 Size
Rotating ring nut / depth Piston thread / depth Piston stroke Max.
Fixing bolt circle Fixing bolt
Thread / thread depth Thread / thread depth
Thread / thread depth
Max. / min. Max. / min. Base jaw tooth pitch Base jaw offset Number of teeth
teeth deg. deg. deg.
α β γ
40 25 30
40 25 30
40 25 30
40
- -
7.0
Stroke per jaw at piston stroke K
mm
25
8.0
8.0
10.0
10.0
Stroke per jaw at piston stroke K max. Max. actuating force 3-jaw chuck Max. total gripping force 3-jaw chuck
mm
28
32
42
42
95
115
120
125
kN
180
240
250
250
kN
Max. speed 3-jaw chuck
4000
3500
2200
1700
r.p.m.
65
65 68 68 111 111 116 116 225 225 231 231 390 398 1.2 2.5 6.5 18 SIN-S 150 / 175 / 200 VNK-T2 250-110 SIN-S 175 / 200 VNK-T2 320-127 SIN-S 175 / 200 VSG 450-165 SIN-S 175 / 200 VSG 450-165
Weight without jaws Moment of inertia Rec. closed center cyl. Rec. open center cyl.
kg
kg·m 2
Type Type
SMW-AUTOBLOK 165
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