BK3
Metal Bellows Coupling with tapered conical sleeves

15 - 10,000 Nm

BK3 METAL BELLOWS COUPLING WITH TAPERED CONICAL SLEEVES

  • BK3
  • Especificações BK3

    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien15
    Rated torque (Nm)TKN15
    Overall length (mm)A-248 | 55
    Fit length (mm)C19
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/210-22
    Outside diameter (mm)B49
    Moment of inertia (10-3 kgm2)Jges.0,07 | 0,08
    Approximate weight (kg)0,25
    Torsional stiffness (10³ Nm/rad)CT20 | 15
    Axial ± (mm)max.1 | 2
    Lateral ± (mm)max.0,15 | 0,2
    Angular ± (degree)max.1 | 1,5
    Axial spring stiffness (N/mm)Ca25 | 15
    Lateral spring stiffness (N/mm)Cr475 | 137
    Fastening screw (ISO 4017)E6 x M4
    Tightening torque of the fastening screw (Nm)E4
    Jack screw ISO 4017F3 x M4
    Outside diameter of hub (mm)G49
    15
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien30
    Rated torque (Nm)TKN30
    Overall length (mm)A-257 | 65
    Fit length (mm)C22
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/212-23
    Outside diameter (mm)B55
    Moment of inertia (10-3 kgm2)Jges.0,15 | 0,16
    Approximate weight (kg)0,4
    Torsional stiffness (10³ Nm/rad)CT39 | 28
    Axial ± (mm)max.1 | 2
    Lateral ± (mm)max.0,2 | 0,25
    Angular ± (degree)max.1 | 1,5
    Axial spring stiffness (N/mm)Ca50 | 30
    Lateral spring stiffness (N/mm)Cr900 | 270
    Fastening screw (ISO 4017)E6 x M5
    Tightening torque of the fastening screw (Nm)E6
    Jack screw ISO 4017F3 x M4
    Outside diameter of hub (mm)G55
    30
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien60
    Rated torque (Nm)TKN60
    Overall length (mm)A-266 | 76
    Fit length (mm)C27
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/212-29
    Outside diameter (mm)B66
    Moment of inertia (10-3 kgm2)Jges.0,39 | 0,41
    Approximate weight (kg)0,8
    Torsional stiffness (10³ Nm/rad)CT76 | 55
    Axial ± (mm)max.1,5 | 2
    Lateral ± (mm)max.0,2 | 0,25
    Angular ± (degree)max.1 | 1,5
    Axial spring stiffness (N/mm)Ca72 | 48
    Lateral spring stiffness (N/mm)Cr1200 | 420
    Fastening screw (ISO 4017)E6 x M5
    Tightening torque of the fastening screw (Nm)E8
    Jack screw ISO 4017F3 x M5
    Outside diameter of hub (mm)G66
    60
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien150
    Rated torque (Nm)TKN150
    Overall length (mm)A-275 | 87
    Fit length (mm)C32
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/215-38
    Outside diameter (mm)B81
    Moment of inertia (10-3 kgm2)Jges.1,2 | 1,6
    Approximate weight (kg)1,2
    Torsional stiffness (10³ Nm/rad)CT175 | 110
    Axial ± (mm)max.2 | 3
    Lateral ± (mm)max.0,2 | 0,25
    Angular ± (degree)max.1 | 1,5
    Axial spring stiffness (N/mm)Ca82 | 52
    Lateral spring stiffness (N/mm)Cr1500 | 435
    Fastening screw (ISO 4017)E6 x M6
    Tightening torque of the fastening screw (Nm)E12
    Jack screw ISO 4017F3 x M5
    Outside diameter of hub (mm)G81
    150
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien200
    Rated torque (Nm)TKN200
    Overall length (mm)A-278 | 90
    Fit length (mm)C32
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/215-44
    Outside diameter (mm)B90
    Moment of inertia (10-3 kgm2)Jges.1,7 | 2,5
    Approximate weight (kg)1,8
    Torsional stiffness (10³ Nm/rad)CT191 | 140
    Axial ± (mm)max.2 | 3
    Lateral ± (mm)max.0,25 | 0,3
    Angular ± (degree)max.1 | 1,5
    Axial spring stiffness (N/mm)Ca90 | 60
    Lateral spring stiffness (N/mm)Cr2040 | 610
    Fastening screw (ISO 4017)E6 x M6
    Tightening torque of the fastening screw (Nm)E14
    Jack screw ISO 4017F3 x M6
    Outside diameter of hub (mm)G90
    200
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien300
    Rated torque (Nm)TKN300
    Overall length (mm)A-289 | 103
    Fit length (mm)C41
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/224-56
    Outside diameter (mm)B110
    Moment of inertia (10-3 kgm2)Jges.5,1 | 5,9
    Approximate weight (kg)3
    Torsional stiffness (10³ Nm/rad)CT450 | 350
    Axial ± (mm)max.2,5 | 3,5
    Lateral ± (mm)max.0,25 | 0,3
    Angular ± (degree)max.1 | 1,5
    Axial spring stiffness (N/mm)Ca105 | 71
    Lateral spring stiffness (N/mm)Cr3750 | 1050
    Fastening screw (ISO 4017)E6 x M8
    Tightening torque of the fastening screw (Nm)E18
    Jack screw ISO 4017F3 x M6
    Outside diameter of hub (mm)G110
    300
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien500
    Rated torque (Nm)TKN500
    Overall length (mm)A-297 | 110
    Fit length (mm)C41
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/224-60
    Outside diameter (mm)B124
    Moment of inertia (10-3 kgm2)Jges.9,1 | 9,9
    Approximate weight (kg)4,2
    Torsional stiffness (10³ Nm/rad)CT510 | 500
    Axial ± (mm)max.2,5 | 3,5
    Lateral ± (mm)max.0,3 | 0,35
    Angular ± (degree)max.1 | 1,5
    Axial spring stiffness (N/mm)Ca70 | 48
    Lateral spring stiffness (N/mm)Cr2500 | 840
    Fastening screw (ISO 4017)E6 x M8
    Tightening torque of the fastening screw (Nm)E25
    Jack screw ISO 4017F3 x M6
    Outside diameter of hub (mm)G122
    500
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien800
    Rated torque (Nm)TKN800
    Overall length (mm)A-2114
    Fit length (mm)C50
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/230-60
    Outside diameter (mm)B133
    Moment of inertia (10-3 kgm2)Jges.13,2
    Approximate weight (kg)5,6
    Torsional stiffness (10³ Nm/rad)CT780
    Axial ± (mm)max.3,5
    Lateral ± (mm)max.0,35
    Angular ± (degree)max.1,5
    Axial spring stiffness (N/mm)Ca100
    Lateral spring stiffness (N/mm)Cr2000
    Fastening screw (ISO 4017)E6 x M10
    Tightening torque of the fastening screw (Nm)E40
    Jack screw ISO 4017F3 x M8
    Outside diameter of hub (mm)G116
    800
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien1500
    Rated torque (Nm)TKN1500
    Overall length (mm)A-2141
    Fit length (mm)C61
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/235-70
    Outside diameter (mm)B157
    Moment of inertia (10-3 kgm2)Jges.34,9
    Approximate weight (kg)8,2
    Torsional stiffness (10³ Nm/rad)CT1304
    Axial ± (mm)max.3,5
    Lateral ± (mm)max.0,35
    Angular ± (degree)max.1,5
    Axial spring stiffness (N/mm)Ca320
    Lateral spring stiffness (N/mm)Cr3600
    Fastening screw (ISO 4017)E6 x M12
    Tightening torque of the fastening screw (Nm)E70
    Jack screw ISO 4017F6 x M8
    Outside diameter of hub (mm)G135
    1500
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien4000
    Rated torque (Nm)TKN4000
    Overall length (mm)A-2195
    Fit length (mm)C80
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/250-100
    Outside diameter (mm)B200
    Moment of inertia (10-3 kgm2)Jges.85,5
    Approximate weight (kg)23
    Torsional stiffness (10³ Nm/rad)CT3400
    Axial ± (mm)max.3,5
    Lateral ± (mm)max.0,4
    Angular ± (degree)max.1,5
    Axial spring stiffness (N/mm)Ca565
    Lateral spring stiffness (N/mm)Cr6070
    Fastening screw (ISO 4017)E6 x M16
    Tightening torque of the fastening screw (Nm)E120
    Jack screw ISO 4017F6 x M10
    Outside diameter of hub (mm)G180
    4000
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien6000
    Rated torque (Nm)TKN6000
    Overall length (mm)A-2210
    Fit length (mm)C85
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/260-140
    Outside diameter (mm)B253
    Moment of inertia (10-3 kgm2)Jges.254
    Approximate weight (kg)32,6
    Torsional stiffness (10³ Nm/rad)CT5700
    Axial ± (mm)max.3
    Lateral ± (mm)max.0,4
    Angular ± (degree)max.1,5
    Axial spring stiffness (N/mm)Ca1030
    Lateral spring stiffness (N/mm)Cr19200
    Fastening screw (ISO 4017)E6 x M16
    Tightening torque of the fastening screw (Nm)E150
    Jack screw ISO 4017F6 x M10
    Outside diameter of hub (mm)G246
    6000
    CAD
    BK3 Série
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/2
    Outside diameter (mm)B
    Moment of inertia (10-3 kgm2)Jges.
    Approximate weight (kg)
    Torsional stiffness (10³ Nm/rad)CT
    Axial ± (mm)max.
    Lateral ± (mm)max.
    Angular ± (degree)max.
    Axial spring stiffness (N/mm)Ca
    Lateral spring stiffness (N/mm)Cr
    Fastening screw (ISO 4017)E
    Tightening torque of the fastening screw (Nm)E
    Jack screw ISO 4017F
    Outside diameter of hub (mm)G
    CAD Portal
    BK3 Serien10000
    Rated torque (Nm)TKN10000
    Overall length (mm)A-2217
    Fit length (mm)C92
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/270-180
    Outside diameter (mm)B303
    Moment of inertia (10-3 kgm2)Jges.629
    Approximate weight (kg)45,5
    Torsional stiffness (10³ Nm/rad)CT10950
    Axial ± (mm)max.3
    Lateral ± (mm)max.0,4
    Angular ± (degree)max.1,5
    Axial spring stiffness (N/mm)Ca985
    Lateral spring stiffness (N/mm)Cr21800
    Fastening screw (ISO 4017)E8 x M16
    Tightening torque of the fastening screw (Nm)E160
    Jack screw ISO 4017F8 x M10
    Outside diameter of hub (mm)G295
    10000
    CAD

    Propriedade

    • Design: With tapered conical sleeves and strong,
captive ISO 4017 draw-off screws.
    • Temperature range: -30° C to +100° C (-22° F to +212° F)
    • Backlash: Absolutely backlash-free due to frictional
clamp connection.
    • Service life: These couplings are maintenance-free if the
technical ratings are not exceeded.
    • Tolerance: On the hub/shaft connection 0.01 to 0.05 mm
    • Material:
      • Bellows made of highly flexible high-grade stainless steel
      • The hub material is steel
    • Brief overload: Acceptable up to 1.5 times the value specified.
    • Speeds: Up to 10,000 rpm, in excess of 10,000 available with a finely balanced version.
    • Non-standard application: Custom designs with varied tolerances, keyways,
non-standard material, bellows and ATEX designs are available upon request.
    • Properties of Bellos Coupling model BK3
      • high clamping forces
      • high degree of operating dependability
      • new draw off device suited for space restricted installations


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