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NB-200A Power Chuck

3-jaw extra large through-hole power chuck
(adapter included)
  • More large bore:
    The largest bore in wedge type power operated chucks.
  • 20% large bore:
    Approximately 20% higher speed, higher gripping force and larger bore compared with regular chucks.
  • Model NB-200A chucks are assembled with adaptor for ASA B5.9 type A spindles.
  • Model NB-200A chucks are manufactured form high grade alloy steel. All sliding surfaces are hardened and ground for accurate actual running and long service repeatability.
Through-Hole
(mm)
Plunger
Stroke
(mm)
Jaw stroke
(In Dia.)
(mm)
Max. Pull
Force
(kgf)
Max.
Gripping
Force
(kgf)
Max.
Operating
Pressure
(kgf / cm²)
Max.
Speed
(r.p.m.)
Weight
(kg)
Moment Of
Inertia
I
(kg.m²)
Matching
Cylinder
Matching
Hard Jaw
Matching
Soft Jaw
Gripping
O.D. Range
(mm)
SPEC Part Number Price Each
Ø52 12 5.4 2243 5812 18.4 6000 14 0.06 M1552 HJ06 HC06 Ø16-Ø170 NB-306A5
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Ø66 16 7.4 3558 9075 20.5 5000 24 0.14 M1868 HJ08 HC08 Ø20-Ø210 NB-208A6
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Ø78 19 8.8 4385 11319 27.5 4200 37.4 0.4 M1878 HJ10 HC10 Ø25-Ø254 NB-210A8
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Ø81 19 8.8 4976 12848 31.5 4500 36.4 0.33 MK1881 HJ10 HC10 Ø37-Ø254 NB-310A8
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Ø122 23 10.6 5812 14990 20.5 3200 65 0.95 M2511 HJ12 HC12 Ø41-Ø315 NB-212A11
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Ø142 23 10.6 7240 18355 25.5 2500 130 3.0 ML2816 HJ15 HC15 Ø60-Ø405 NB-215A15
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Ø166.5 23 10.6 7240 18355 25.5 2000 161 4.77 ML2816 HJ15 HC15 Ø75-Ø457 NB-218A15
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A B C
(H6)
D E F G H J K L M N
max.
O
max.
O
min.
P
max.
P
min.
Q R S T U
max.
V W X1
(H12)
X2 X3 X4 DIM Part Number Price Each
170 91 140 20 15 82.563 116 104.78 14.5 6xM10 52 5 34.3 18.25 9.25 26 14 2 12 20 31 M60x2 3xM6 65 16 36 65 M8 NB-306A5 Call or Email
210 103 170 25 17 106.375 150 133.35 19.5 6xM12 66 5 42 23.75 11.75 31.5 15.5 2 14 20 35 M75x2 3xM6 80 16 45 80 M8 NB-208A6 Call or Email
254 113 220 30 18 139.719 190 171.45 24 6xM16 78 5 53 33.75 14.25 26.5 7.5 2 16 25 40 M87x2 3xM8 94 16 60 102 M10 NB-210A8 Call or Email
254 113 220 30 18 139.719 190 171.45 24 6xM16 81 5 54 32.25 14.25 26.5 7.5 2 16 25 40 M90x2 3xM8 97 16 60 102 M10 NB-310A8 Call or Email
315 134 300 30 22 196.869 260 235 28 6xM20 122 6 74.2 36.25 12.75 42 19 2 21 28 50 M135x2 3xM10 143 20 60 138 M10 NB-212A11 Call or Email
405 154 380 43 27 285.775 330.2 330.2 33 6xM24 142 6 93.5 45.25 15.25 34 11 5 22 43 62 M155x2 3xM12 164 20 80 160 M12 NB-215A15 Call or Email
457 154 380 43 27 285.775 330.2 330.2 33 6xM24 166.5 6 96.7 63.25 18.25 34 11 5 22 43 62 M180x3 3xM12 189 20 100 160 M12 NB-218A15 Call or Email