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3-781-1811 - 3 Jaw, 18", Lg Bore, Power Chuck, A2-11

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3 Jaw, 18", Lg Bore, Power Chuck, A2-11
Workholding/Power Lathe Chucks/Large Bore Precision Power Lathe Chucks & Accessories/3-Jaw Large Bore, A2 Mount
3 Jaw, 18", Lg Bore, Power Chuck, A2-11
Item #: 3-781-1811
3 Jaw, 18" (450 mm) Diameter, A2-11, High Speed, Hydraulic, Power, Lathe Chuck, Large Bore, 4.6456” Through Hole, Drawbar, Max Gripping Force 180(18355) N(kgf), 3mm x 60 Serrated Jaw Interface, 30mm to 450mm Jaw Capacity, 2,000 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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View Accessories and Parts

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Chuck Adapter, 15", A2-11, 3-Jaw
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Hard Top Jaws, 15&18in, 3-Jaw, 3 Pc Set
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Drawnut, 15" Blank
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T-nut for 15in power chuck
3-789-1813
Draw Nut for 18" Threaded M130x2.0

Technical Details




Item Number: 3-781-1811

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Chuck Size in 18
Spindle Nose A2-11
Thru Hole in(mm) 4.646 (118)
Jaw Stroke in(mm) 0.417 (10.6)
Plunger Stroke in(mm) 0.906 (23)
Gripping Dia Max in(mm) 17.717 (450)
Gripping Dia Min in(mm) 1.181 (30)
Max Permissible Input Force lbf(kgf) 15928 (7240)
Max Gripping Force lbf(kgf) 40381 (18355)
Max Speed RPM 2000
Weight lb (kg) 391.6 (178)
Moment of Inertia lb*ft2 3.912
A in(mm) 17.717 (450)
B in(mm) 5.866 (149)
C in(mm) 14.961 (380)
D in(mm) 7.751 (196.869)
E in(mm) 0.866 (22)
F in(mm) 0.236 (6)
G in(mm) 12.598 (320)
H in(mm) 9.252 (235)
J in(mm) 4.646 (118)
K 6 - M20
L in(mm) 1.102 (28)
M in(mm) 1.693 (43)
N max in(mm) 3.228 (82)
N min in(mm) 3.02 (76.7)
O max in(mm) 2.906 (73.8)
O min in(mm) 0.72 (18.3)
P max in(mm) 1.299 (33)
P min in(mm) 0.394 (10)
Q in(mm) 2.441 (62)
R in(mm) 0.866 (22)
S in(mm) 1.535 (39)
T in(mm) 0.197 (5)
U max M130x2.0
V 3-M10
W in(mm) 5.472 (139)
X in(mm) 2.362 (60)
Y in(mm) 2.756 (70)
Z in(mm) 6.496 (165)
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