SMW-AUTOBLOK EN

FRC-N

Lever chuck Ø 215 - 365 mm

■ Pull-down to axial datum ■ Spring loaded or fixed center ■ proofline ® chucks = fully sealed - low maintenance

Compensating clamping TONGUE & GROOVE

Application/customer benefits • Compensating clamping of shafts between centers, where the clamping diameter is not concentric to the workpiece axis • The grip force of the chuck supplies the torque necessary to machine the workpiece and pulls it down to the axial datum (center point / axial stop) • Due to its high rigidity against torsion the chuck is ideal for turning as well as for milling operations

Technical features • For O.D. clamping only • Compensating clamping with large compensating stroke • TONGUE & GROOVE base jaws • Pull down to axial datum • Centrifugal force compensation Standard equipment 3-jaw chuck without centering insert Mounting bolts

• Permanent grease lubrication • High rigidity against torsion • Center point adjustable • proofline® chucks = fully sealed - low maintenance

Ordering example Lever chuck FRC-N 215 A6



s

a l e

m a i

■ FRC-N pull-down and compensating clamping The tailstock supplies the requested force to support the part only. The result is a cylindrical finished shaft with concentric diameters. The chuck pulls the workpiece down to the center point without bending the workpiece.

■ Non pull-down compensating chuck Lifting of the top jaws pushes the shaft away from the centering reference; high tailstock force has to be used to overcome this lifting, resulting in a bending of the component. Technical data

SMW-AUTOBLOK Type Angular jaw stroke U° Radial jaw stroke at distance h

FRC-N 215

FRC-N 285

FRC-N 365

deg. mm mm mm

6.3

7.3 26 ±2

8.4

Wedge stroke

22

31

Compensation (on the dia.) at distance h

±1.5

±2.5 110 240 2500

Max. draw pull

kN kN

45

70

Max. gripping force at distance h

100

150

Max. speed

r.p.m.

4500

3500

Weight (plain back without top jaws)

kg

30

62

120

Moment of inertia* Standard fixed center

kg·m 2 Id. No. Id. No.

0.17

0.65

2

81732141 81722141

81732841 81722841

81733641 81723641

Standard spring loaded center Recommended actuating cylinders

Type

SIN-S 100 - 125

125 SIN-S 125 -150

SIN-S 150 - 200

Id. No. FRC-N

77817821

77817828

77817836

* The above maximum speed is allowed with standard weight / height top jaws and applying the full draw pull only. For more information please contact SMW-AUTOBLOK.

SMW-AUTOBLOK 482

SMW-AUTOBLOK 476

SMW-AUTOBLOK 335

206 SMW-AUTOBLOK

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