SMW-AUTOBLOK EN

BH-D

High precision power chuck Ø 500 - 800 mm

Big diameters INCH SERRATION

■ Large through-hole ■ 3 jaws

Application/customer benefits • For open center or partial open center clamping • Large through-hole BH-D: Master jaws with INCH SERRATION 3/32”x 90° Technical features • Gripping force transmission via wedge hook Standard equipment

Ordering example 3-jaw chuck BH-D 500 / A15

3-jaw chuck

1 set T-nuts with bolts 1 set soft top jaws

or

3-jaw chuck BH-D 800 / Z520

Blank ring-nut Mounting bolts

Actual gripping force diagram

Safety advice / danger of damage: When using taller / heavier jaws and / or clamping on a bigger diameter reduce draw pull / rotating speed accordingly. The data in the diagram refers to 3-jaw chucks, newly maintained according to their service manuals using SMW-AUTOBLOK K67 grease. The static and dynamic gripping forces have been measured using standard soft top jaws, placed in a position not exceeding the outer diameter of the chuck.

120 100 140 160 180 220 200 240

800

630

500

80 60 40 20

F G

F

0

500

1000

1500

2000

Speed (r.p.m.)

Technical data

BH-D 500

BH-D 630

BH-D 800

SMW-AUTOBLOK Type Number of jaws Through-hole

3

3

3

mm mm mm

180

230

230

Radial jaw stroke Axial piston stroke Max. draw pull* Max. gripping force*

6.5

9

9

31 70

34

34

kN kN

100 240

100 240

210

Max. speed

r.p.m.

1800

1500

1200

kg

140

280

530

Weight (without top jaws)

Moment of inertia

kg·m 2

5

16

47

Recommended actuating cylinders

SIN-S 150 / 200 VSG 450-165

SIN-S 150 / 200 VSG 550-205

SIN-S 150 / 200 VSG 550-205

Id. No. BH-D 3 jaws (Center mounting) * For internal clamping reduce the draw pull by 30%.

77152750

77152763

77152780

SMW-AUTOBLOK 470

SMW-AUTOBLOK 472

SMW-AUTOBLOK 335

104 SMW-AUTOBLOK

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