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Liebherr segment clamping arbor SECLA

The clamping fixture for optimum quality and very fast delivery times

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Video: The operating principle of our segment clamping arbor explained

    
        

Standard segment clamping arbor
Size 1-4

  • Clamping unit

  • Support

  • Clamping base

        
    
    
        
Table is scrollable
Size   1 2 3 4
Clamping range mm Ø 20 - Ø 32 Ø 25 - Ø 41 Ø 32 - Ø 51 Ø 41 - Ø 62
Radial runout mm < 0.008 < 0.008 < 0.008 < 0.008
Max. actuating force kN 8 10 12 25
Clamping margin* mm 1.5 1.5 1.5 2
Release stroke* mm 2 2 2 2.5
Max. stroke of the clamping bushing Ø mm +0.2 / -0.3 +0.3 / -0.4 +0.3 / -0.4 +0.4 / -0.5
Permitted clamping range** Ø mm ± 0.05 ± 0.1 ± 0.1 ± 0.2
A mm 80 77 60 60
B mm 20 20 20 20
C* mm 135 135 135 136
D mm 140 140 140 140
E* mm 170 177 190.5 198.5
F mm 5.5 5.5 5.5 5.5
Ø G mm 5 5 5 5
Ø H mm 85 85 85 85
Ø I mm 60.5 69.5 88 89
Ø J mm 32.5 f7 41.5 f7 60 f7 63 f7
Ø K mm 89 f7 89 f7 89 f7 89 f7
Ø L mm 122 -0.05 / -0.2 122 -0.05 / -0.2 122 -0.05 / -0.2 122 -0.05 / -0.2
Ø M mm 9 9 9 9
N mm M 6 M 6 M 6 M 6
O mm M 6 M 6 M 6 M 6
*for clamping units; mean value of clamping range in “clamped position” **for clamping unit with nominal bore dimension with tolerance <= IT8
        
    
    
        

Standard segment clamping arbor
Size 5-8

  • Clamping unit

  • Support

  • Clamping base

        
    
    
        
Table is scrollable
Size   5 6 7 8
Clamping range mm Ø 51- Ø 75 Ø 62- Ø 90 Ø 75- Ø 111 Ø 90- Ø 135
Radial runout mm < 0.008 < 0.008 < 0.008 < 0.01
Max. actuating force kN 30 35 60 65
Clamping margin* mm 2 2 2.5 2.5
Release stroke* mm 2.5 2.5 3 3
Max. stroke of the clamping bushing Ø mm +0.4 / -0.5 +0.4 / -0.5 +0.5 / -0.6 +0.5 / -0.6
Permitted clamping range** Ø mm ± 0.2 ± 0.2 ± 0.2 ± 0.2
A mm 52 52 47 47
B mm - - - -
C* mm 136 135 132 133
D mm 140 140 140 140
E* mm 205.5 209.5 210 222
F mm 5.5 5.5 5.5 5.5
Ø G mm 5 5 5 5
Ø H mm 85 85 85 85
Ø I mm 104 119 140 164
Ø J mm 76 f7 91 f7 112 f7 136 f7
Ø K mm - - - -
Ø L mm 122 -0.05 / -0.2 122 -0.05 / -0.2 145 -0.05 / -0.2 180 -0.05 / -0.2
Ø M mm 9 9 9 9
N mm M 6 M 6 M 6 M 6
O mm - - - -
*for clamping units; mean value of clamping range in “clamped position” **for clamping unit with nominal bore dimension with tolerance <= IT8
        
    
    
        

Standard segment clamping arbor
Size 9-10B

  • Clamping unit

  • Support

  • Clamping base

        
    
    
        
Table is scrollable
Size   9 9B 10 10B
Clamping range mm Ø 110 - Ø 165 Ø 110 - Ø 165 Ø 135 - Ø 200 Ø 135 - Ø 200
Radial runout mm < 0.01 < 0.01 < 0.01 < 0.01
Max. actuating force kN 65 65 65 65
Clamping margin* mm 2.5 2.5 2.5 2.5
Release stroke* mm 3 3 3 3
Max. stroke of the clamping bushing Ø mm +0.5 / -0.6 +0.5 / -0.6 +0.5 / -0.6 +0.5 / -0.6
Permitted clamping range** Ø mm ± 0.2 ± 0.2 ± 0.2 ± 0.2
A mm 30 30 47 47
B mm - - - -
C* mm 134 134 134 134
D mm 140 140 140 140
E* mm 232 232 241 241
F mm - - - -
Ø G mm - - - -
Ø H mm 85 85 85 85
Ø I mm - - - -
Ø J mm 168 f7 148 f7 205 f7 148 f7
Ø K mm - - - -
Ø L mm 200 -0.05 / -0.2 180 -0.05 / -0.2 237 -0.05 / -0.2 180 -0.05 / -0.2
Ø M mm 9 9 9 9
N mm M 6 M 6 M 6 M 6
O mm - - - -
*for clamping units; mean value of clamping range in “clamped position” **for clamping unit with nominal bore dimension with tolerance <= IT8
        
    

Use of SECLA segment clamping technology during generating grinding of extremely precise components for cycloid gears

The Liebherr segment clamping technology during generating grinding of final drive gears

Segment clamping bushings from 20 mm to 200 mm diameter

Clamping element (segment clamping bushing with tension adapter)

SECLA provides a complete segment clamping arbor system (incl. test workpiece and upper mounting for counter columns)

The SECLA segment clamping arbor also clamps workpieces during generating grinding

Application examples for the clamping system in gear technology

One segment clamping arbor with various workpiece supports and variously sized clamping elements (segment clamping bushing and tension adapter)

Optimal use for large and very small workpieces despite interfering contours

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Contact

Your contact for the perfect clamping technology solution

Liebherr-Verzahntechnik GmbH
Kaufbeurer Straße 141
87437 Kempten
Germany

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