| Place of Origin: | CHINA |
|---|---|
| Brand Name: | Auto Strong |
| Model Number: | NB-306A5,NB-208A6,NB-210A8,NB-310A8,NB-212A8,NB-212A11 etc |
| Minimum Order Quantity: | 1 set |
| Price: | Negotiation |
| Packaging Details: | Good and firm package is suitable for sea and air shipping |
| Delivery Time: | 3 work days available |
| Payment Terms: | T/T, Western Union |
| Supply Ability: | 1000 sets/M |
| Product Name: | 3 Jaw Extra Large Through Hole Power Chuck (adapter Excluded) | Material: | Cast Steel |
|---|---|---|---|
| Usage: | Gripping/Fixture | Feature: | High Precision/High Quality |
| Size: | Refer To The Specification | Service: | OEM/ODM Is Acceptable |
| High Light: | auto strong lathe chuck,strong chucks |
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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.
UNIT : mm
| SPEC Model |
Through-Hole (mm) |
Plunger Stroke |
Jaw stroke (In Dia.) (mm) |
Max.Pull Force (kn) |
Max.Grip Force (kn) |
Max.Operating Pressure (kgf/cm2) |
Max.Speed (r.p.m.) |
|---|---|---|---|---|---|---|---|
| NB-306A5 | Ø52 | 12 | 5.4 | 2243 | 5812 | 18.4 | 6000 |
| NB-208A6 | Ø66 | 16 | 7.4 | 3558 | 9075 | 20.5 | 5000 |
| NB-210A8 | Ø78 | 19 | 8.8 | 4385 | 11319 | 27.5 | 4200 |
| NB-310A8 | Ø81 | 19 | 8.8 | 4976 | 12848 | 31.5 | 4500 |
| NB-212A8 | Ø122 | 23 | 10.6 | 5812 | 14990 | 20.5 | 3200 |
| NB-212A11 | Ø122 | 23 | 10.6 | 5812 | 14990 | 20.5 | 3200 |
| NB-215A15 | Ø142 | 23 | 10.6 | 7240 | 18355 | 25.5 | 2500 |
| NB-218A15 | Ø166.5 | 23 | 10.6 | 7240 | 18355 | 25.5 | 2000 |
| SPEC Model |
Weight (kg) |
Moment Of Inertia I(kg‧m2) |
Matching Cylinder |
Matching Hard Jaw |
Matching Soft Jaw |
Gripping O.D. Range (mm) |
|---|---|---|---|---|---|---|
| NB-306A5 | 14 | 0.06 | M1552 | HJ06 | HC06 | Ø20-Ø170 |
| NB-208A6 | 24 | 0.14 | M1868 | HJ08 | HC08 | Ø26-Ø210 |
| NB-210A8 | 37.4 | 0.4 | M1878 | HJ10 | HC10 | Ø36-Ø254 |
| NB-310A8 | 36.4 | 0.33 | MK1881 | HJ10 | HC10 | Ø37-Ø254 |
| NB-212A8 | 72.2 | 1.04 | M2511 | HJ12 | HC12 | Ø59-Ø315 |
| NB-212A11 | 65 | 0.95 | M2511 | HJ12 | HC12 | Ø59-Ø315 |
| NB-215A15 | 130 | 3 | M2816 | HJ15 | HC15 | Ø59-Ø405 |
| NB-218A15 | 161 | 4.77 | M2816 | HJ15 | HC15 | Ø78-Ø457 |
| DIM Model |
A | B | C(H6) | D | E | F | G | H | J | K | L | M | Nmax. | Omax. | Omin. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NB-306A5 | 170 | 91 | 140 | 20 | 15 | 82.563 | 116 | 104.78 | 14.5 | 6xM10 | 52 | 5 | 37 | 18.25 | 9.25 |
| NB-208A6 | 210 | 103 | 170 | 25 | 17 | 106.38 | 150 | 133.35 | 19.5 | 6xM12 | 66 | 5 | 45.7 | 23.75 | 11.75 |
| NB-210A8 | 254 | 113 | 220 | 30 | 18 | 139.72 | 190 | 171.45 | 24 | 6xM16 | 78 | 5 | 53 | 33.75 | 14.25 |
| NB-310A8 | 254 | 113 | 220 | 30 | 18 | 139.72 | 190 | 171.45 | 24 | 6xM16 | 81 | 5 | 54 | 32.25 | 14.25 |
| NB-212A8 | 315 | 145 | 300 | 30 | 33 | 139.72 | 235 | 171.45 | 24 | 6xM20 | 122 | 6 | 79.5 | 33.75 | 11.25 |
| NB-212A11 | 315 | 134 | 300 | 30 | 22 | 196.87 | 260 | 235 | 28 | 6xM20 | 122 | 6 | 79.5 | 33.75 | 11.25 |
| NB-215A15 | 405 | 154 | 380 | 43 | 27 | 285.78 | 330.2 | 330.2 | 33 | 6xM24 | 142 | 6 | 93.5 | 45.25 | 15.25 |
| NB-218A15 | 457 | 154 | 380 | 43 | 27 | 285.78 | 330.2 | 330.2 | 33 | 6xM24 | 166.5 | 6 | 102 | 63.25 | 18.25 |
| DIM Model |
Pmax. | Pmin. | Q | R | S | T | Umax. | V | W | X | X2 | X3 | X4 | Reference |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NB-306A5 | 26 | 14 | 2 | 12 | 20 | 31 | M60x2 | 3xM6 | 65 | 16 | 36 | 65 | M8 | Fig-1 |
| NB-208A6 | 31.5 | 15.5 | 2 | 14 | 20 | 35 | M74x2 | 3xM6 | 80 | 16 | 45 | 80 | M8 | Fig-1 |
| NB-210A8 | 26.5 | 7.5 | 2 | 16 | 25 | 40 | M87x2 | 3xM8 | 94 | 16 | 60 | 102 | M10 | Fig-1 |
| NB-310A8 | 26.5 | 7.5 | 2 | 16 | 25 | 40 | M90x2 | 3xM8 | 97 | 16 | 60 | 102 | M10 | Fig-1 |
| NB-212A8 | 53 | 30 | 2 | 21 | 28 | 50 | M135x2 | 6xM16 | 143 | 20 | 60 | 138 | M10 | Fig-2 |
| NB-212A11 | 42 | 19 | 2 | 21 | 28 | 50 | M135x2 | 3xM10 | 143 | 20 | 60 | 138 | M10 | Fig-2 |
| NB-215A15 | 34 | 11 | 5 | 22 | 43 | 62 | M155x2 | 3xM12 | 164 | 20 | 80 | 160 | M12 | Fig-1 |
| NB-218A15 | 34 | 11 | 5 | 22 | 43 | 62 | M180x3 | 3xM12 | 189 | 20 | 100 | 160 | M12 | Fig-1 |
