KNCS ® -N
QUICK JAW CHANGE 3-JAW CHUCK
■ Main dimensions and technical data
Actual gripping force diagrams
260
180
F G
220 240 180 200 140 160 100 120
F
160
340-117
325-104
140
630-165 500-155
400-128
120
260-78
275-86
100
80
225-66
210-52
60
60 80 20 40
170-43
F G
3
40
F
140-35
20
0
1000 2000 3000 4000 5000 6000 7000
0
500 1000 1500 2000 2500 3000 3500
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 A8* A11 Z300 Z380 A11 A15 Z300 Z380 A11 A15 Z380 A15 A 324 340 400 500 630 B 130 130 149 151 130 160 151 140 140 161 163 174 174 195 197 174 197 C 340-117 400-128 500-155
Size
139.2 139.2 158.2 160.2 139.3 169.3 160.4 149.2 149.2 170.2 172.2 184 184 205 207 184 207 D H6 220 300 139.73 196.88 300 139.73 196.88 300 380 196.88 285.77 300 380 196.88 285.77 380 285.77 E 268 270 330 420 585 F 144 160 180 207 217 G1 M115 x 2 / 22 M125 x 2 / 22 M138 x 2 / 22 M165 x 2 / 25 M175 x 2 / 25 G2 M132 x 2 / 25 M146 x 2 / 25 M160 x 2 / 25 M185 x 2 / 28 M195 x 2 / 28 K 25 / 28 25 / 28 32 42 42 L 28 28 47 49 28 58 49 32 32 53 55 42 42 63 65 42 65 M 104 117 128 155 165 N 171.4 235 171.4 235 235 171.4 235 235 330.2 235 330.2 235 330.2 235 330.2 330.2 330.2 O M16 M20 M16 M20 M20 M16 M20 M20 M24 M20 M24 M20 M24 M20 M24 M24 P 130 140 152 180 195 Q 385 400 452 552 643 R1 M10 / 16 M10 / 16 M12 / 18 M16 / 25 M16 / 25 R2 M10 / 16 M10 / 16 M12 / 18 M12 / 18 M12 / 18 S 6 6 8 8 8 a 32 32 32 45 45 b f7 12 12 12 18 18 c 115 115 125 160 200 d 36 36 43 50 50 f H7 20 20 26 30 30 g 40 40 54 60 60 k M12 / 17 M12 / 17 M12 / 17 M16 / 34 M16 / 34 l 9.3 9.3 9.3 10 10 m 3 3 3 4 4 n 6 6 7 9 9 o 155.7 / 106.2 163.2 / 113.7 182.3 / 121.8 225 / 141 270.5 / 179.5 p 111.7 / 62.2 119.2 / 69.7 143.3 / 82.8 164 / 80 170.5 / 79.5 - 5.5 5.5 5.5 7 7 r 49.5 49.5 60.5 84 91 9 9 11 12 13
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.
α β
60 / 35 60 / 35
60 / 35 60 / 35
20 / 9 x 40 20 / 9 x 40
20 / 9 x 40 20 / 9 x 40
20 / 9 x 40 20 / 9 x 40
7.0
7.0
Stroke per jaw at piston stroke K
mm
25
25
8.0
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
28
32
42
42
95
95
115
120
120
kN
180
180
240
250
250
kN
Max. speed 3-jaw chuck
4000 1700 65 65 68 68 77 88.5 82.5 111 111 116 116 225 225 231 231 390 398 1.2 1.24 2.5 6.5 18 SIN-S 150 / 175 / 200 VNK-T2 250-110 SIN-S 150 / 175 / 200 VNK-T2 320-127 3500 3500 2200 SIN-S 175 / 200 VNK-T2 320-127 SIN-S 175 / 200 VSG 450-165 SIN-S 175 / 200 VSG 450-165
r.p.m.
kg
Weight without jaws Moment of inertia Rec. closed center cyl. Rec. open center cyl.
kg·m 2 Type Type
* Indirect mounting.
SMW-AUTOBLOK 143
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