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3-781-1260 - 3 Jaw, 12", Lg Bore, Power Chuck, A2-6

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3 Jaw, 12", Lg Bore, Power Chuck, A2-6
Workholding/Power Lathe Chucks/Large Bore Precision Power Lathe Chucks & Accessories/3-Jaw Large Bore, A2 Mount
3 Jaw, 12", Lg Bore, Power Chuck, A2-6
Item #: 3-781-1260
3 Jaw, 12" (304 mm) Diameter, A2-6, High Speed, Hydraulic, Power, Lathe Chuck, Large Bore, 3.5826” Through Hole, Drawbar, Max Gripping Force 147(15000) N(kgf), 1.5mm x 60 Serrated Jaw Interface, 34mm to 304mm Jaw Capacity, 3,300 RPM, Steel Body. The chuck includes one Blank Draw Nut. TMX offers a Draw Nut Threading Service to machine the Blank Nut to fit your machine specifications.

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Item Number: 3-781-1260

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Dimension+Drawing Dimension Drawing
Chuck Dia in 12
Spindle Nose A2-6
Thru Hole in(mm) 3.583 (91)
Jaw Stroke in(mm) 0.402 (10.2)
Plunger Stroke in(mm) 0.945 (24)
Gripping Dia Max in(mm) 1.197 (30.4)
Gripping Dia Min in(mm) 1.339 (34)
Max Permissible Input Force lbf(kgf) 13015.2 (5916)
Max Speed RPM 3300
Max Gripping Force lbf(kgf) 33000 (15000)
Weight lb (kg) 140.8 (64)
Moment of Inertia lb*ft2 0.6267
A in(mm) 11.969 (304)
B in(mm) 5 (127)
C in(mm) 8.661 (220)
D in(mm) 4.188 (106.375)
E in(mm) 0.709 (18)
F in(mm) 0.236 (6)
G in(mm) 7.48 (190)
H in(mm) 6.748 (171.4)
J in(mm) 3.583 (91)
K in(mm) 6-M16
L in(mm) 0.984 (25)
M 1.181 (30)
N max in(mm) 2.445 (62.1)
N min in(mm) 2.232 (56.7)
O max in(mm) 1.772 (45)
P max in(mm) 1.102 (28)
O min in(mm) 0.591 (15)
Q in(mm) 1.969 (50)
P min in(mm) 0.157 (4)
R in(mm) 0.827 (21)
S in(mm) 1.102 (28)
T in(mm) 0.079 (2)
U max M100x2.0
V 3-M8
W in 4.252 (108)
X in 1.181 (30)
Y in 2.008 (51)
Z in 4.37 (111)
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