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3-761-2111 - 3 Jaw, 12", Closed C, Power Chuck, A2-11

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3 Jaw, 12", Closed C, Power Chuck, A2-11
Workholding/Power Lathe Chucks/Closed Center Precision Power Lathe Chucks/3-Jaw Closed Center, A2 Mount
3 Jaw, 12", Closed C, Power Chuck, A2-11
Item #: 3-761-2111
3 Jaw, 21" (530 mm) Diameter, A2-11, High Speed, Hydraulic, Power, Lathe Chuck, Closed Center, Drawbar, Max Gripping Force 272(27838) N(kgf), 3mm x 60 Serrated Jaw Interface, 82mm to 530mm Jaw Capacity, 1,940 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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Technical Details


Item Number: 3-761-2111

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Dimension+Drawing Dimension Drawing
Chuck Size 21
Spindle Nose A2-11
Jaw Stroke in 0.7323
Plunger Stroke in 1.3780
Gripping Dia Max in 20.8661
Gripping Dia Min in 4.3307
Max Permissible Input Force lbf 21886
Max Static Gripping Force lbf 43283
Max Permissible Speed RPM 1500
Weight lb 430
Moment of Inertia lb*ft2 5.6120
A in 20.8661
B in 5.5118
C in 14.9606
D in 7.7506
E in 0.7874
F in 1.1559
G in 4.6260
H in 9.2520
J in 0.3937
K (ANSI) 3/4-10 UNC
K (JIS) 6-M20
L (ANSI) in 1.3150
L (JIS) in 1.2205
N max in 3.9961
N min in 3.6299
O max in 3.9567
O min in 0.8465
P max in 1.3780
P min in 0.0000
S in 2.1654
T in 8.6614
U M30x3.5
V in 4.3307
X in 2.9528
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