BKC
Metal Bellows Coupling economy class compact version with clamping hub

15 - 500 Nm

BKC METAL BELLOWS COUPLING ECONOMY CLASS COMPACT VERSION WITH CLAMPING HUB

  • BKC
  • Specifications BKC

    BKC Series
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D2
    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 4762)E
    Tightening torque of the fastening screw (Nm)E
    Distance between centerlines (mm)F
    Distance (mm)G
    Hub material
    Speed max. with G = 2.5 balancing (min-1)
    CAD Portal
    BKC Serien15
    Rated torque (Nm)TKN15
    Overall length (mm)A-248
    Fit length (mm)C16,5
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D28-28
    Outside diameter (mm)B49
    Moment of inertia (10-3 kgm2)Jges.0,05
    Approximate weight (kg)0,13
    Torsional stiffness (10³ Nm/rad)CT23
    Axial ± (mm))max.1
    Lateral ± (mm)max.0,2
    Angular ± (degree)max.1
    Axial spring stiffness (N/mm)Ca30
    Lateral spring stiffness (N/mm)Cr315
    Fastening screw (ISO 4762)EM5
    Tightening torque of the fastening screw (Nm)E8
    Distance between centerlines (mm)F17,5
    Distance (mm)G6,5
    Hub materialAluminium
    Speed max. with G = 2.5 balancing (min-1)80000
    15
    CAD
    BKC Series
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D2
    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 4762)E
    Tightening torque of the fastening screw (Nm)E
    Distance between centerlines (mm)F
    Distance (mm)G
    Hub material
    Speed max. with G = 2.5 balancing (min-1)
    CAD Portal
    BKC Serien30
    Rated torque (Nm)TKN30
    Overall length (mm)A-258
    Fit length (mm)C21
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D212-32
    Outside diameter (mm)B56
    Moment of inertia (10-3 kgm2)Jges.0,1
    Approximate weight (kg)0,21
    Torsional stiffness (10³ Nm/rad)CT31
    Axial ± (mm))max.1
    Lateral ± (mm)max.0,2
    Angular ± (degree)max.1
    Axial spring stiffness (N/mm)Ca50
    Lateral spring stiffness (N/mm)Cr366
    Fastening screw (ISO 4762)EM6
    Tightening torque of the fastening screw (Nm)E15
    Distance between centerlines (mm)F20
    Distance (mm)G7,5
    Hub materialAluminium
    Speed max. with G = 2.5 balancing (min-1)70000
    30
    CAD
    BKC Series
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D2
    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 4762)E
    Tightening torque of the fastening screw (Nm)E
    Distance between centerlines (mm)F
    Distance (mm)G
    Hub material
    Speed max. with G = 2.5 balancing (min-1)
    CAD Portal
    BKC Serien60
    Rated torque (Nm)TKN60
    Overall length (mm)A-267
    Fit length (mm)C23
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D214-35
    Outside diameter (mm)B66
    Moment of inertia (10-3 kgm2)Jges.0,26
    Approximate weight (kg)0,37
    Torsional stiffness (10³ Nm/rad)CT72
    Axial ± (mm))max.1,5
    Lateral ± (mm)max.0,2
    Angular ± (degree)max.1
    Axial spring stiffness (N/mm)Ca67
    Lateral spring stiffness (N/mm)Cr679
    Fastening screw (ISO 4762)EM8
    Tightening torque of the fastening screw (Nm)E40
    Distance between centerlines (mm)F23
    Distance (mm)G9,5
    Hub materialAluminium
    Speed max. with G = 2.5 balancing (min-1)60000
    60
    CAD
    BKC Series
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D2
    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 4762)E
    Tightening torque of the fastening screw (Nm)E
    Distance between centerlines (mm)F
    Distance (mm)G
    Hub material
    Speed max. with G = 2.5 balancing (min-1)
    CAD Portal
    BKC Serien150
    Rated torque (Nm)TKN150
    Overall length (mm)A-278
    Fit length (mm)C27,5
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D219-42
    Outside diameter (mm)B82
    Moment of inertia (10-3 kgm2)Jges.0,65
    Approximate weight (kg)0,72
    Torsional stiffness (10³ Nm/rad)CT141
    Axial ± (mm))max.2
    Lateral ± (mm)max.0,2
    Angular ± (degree)max.1
    Axial spring stiffness (N/mm)Ca77
    Lateral spring stiffness (N/mm)Cr960
    Fastening screw (ISO 4762)EM10
    Tightening torque of the fastening screw (Nm)E75
    Distance between centerlines (mm)F27
    Distance (mm)G11
    Hub materialAluminium
    Speed max. with G = 2.5 balancing (min-1)50000
    150
    CAD
    BKC Series
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D2
    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 4762)E
    Tightening torque of the fastening screw (Nm)E
    Distance between centerlines (mm)F
    Distance (mm)G
    Hub material
    Speed max. with G = 2.5 balancing (min-1)
    CAD Portal
    BKC Serien300
    Rated torque (Nm)TKN300
    Overall length (mm)A-294
    Fit length (mm)C34
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D224-60
    Outside diameter (mm)B110
    Moment of inertia (10-3 kgm2)Jges.6,3
    Approximate weight (kg)3,26
    Torsional stiffness (10³ Nm/rad)CT157
    Axial ± (mm))max.2
    Lateral ± (mm)max.0,2
    Angular ± (degree)max.1
    Axial spring stiffness (N/mm)Ca112
    Lateral spring stiffness (N/mm)Cr2940
    Fastening screw (ISO 4762)EM12
    Tightening torque of the fastening screw (Nm)E120
    Distance between centerlines (mm)F39
    Distance (mm)G13
    Hub materialSteel
    Speed max. with G = 2.5 balancing (min-1)40000
    300
    CAD
    BKC Series
    Rated torque (Nm)TKN
    Overall length (mm)A-2
    Fit length (mm)C
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D2
    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 4762)E
    Tightening torque of the fastening screw (Nm)E
    Distance between centerlines (mm)F
    Distance (mm)G
    Hub material
    Speed max. with G = 2.5 balancing (min-1)
    CAD Portal
    BKC Serien500
    Rated torque (Nm)TKN500
    Overall length (mm)A-2100
    Fit length (mm)C34
    Inside diameter possible from Ø to Ø H7 (mm)
    D1/D232-75
    Outside diameter (mm)B123
    Moment of inertia (10-3 kgm2)Jges.9
    Approximate weight (kg)3,52
    Torsional stiffness (10³ Nm/rad)CT290
    Axial ± (mm))max.2,5
    Lateral ± (mm)max.0,2
    Angular ± (degree)max.1
    Axial spring stiffness (N/mm)Ca72
    Lateral spring stiffness (N/mm)Cr2200
    Fastening screw (ISO 4762)EM12
    Tightening torque of the fastening screw (Nm)E125
    Distance between centerlines (mm)F45
    Distance (mm)G13
    Hub materialSteel
    Speed max. with G = 2.5 balancing (min-1)30000
    500
    CAD

    Properties

    • Design:
      • With a single ISO 4762 radial clamping screw per hub.
      • 
Self opening clamp system optional: Loosening the clamping screw applies force to the pin, which will force the clamp into the open position for easy mounting and dismounting.
    • Temperature range: -30° C to +100° C (-22° F to +212° F)
    • Backlash: Absolutely backlash-free due to frictional clamped connection.
    • Service life:These couplings have an infinite life and 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.
      • Hub material see table.
    • Speeds:
      • Standard up to 10,000
      • Option 1: In excess of 10,000 rpm with a finely balanced version

      • Option 2: in excess of 30,000 rpm, with balancing grade G = 2.5 (see table)
    • Non-standard application: Custom designs with varied tolerances, keyways, non-standard material, bellows and ATEX designs are available upon request.
    • Properties of Bellows Coupling model BKC:
      • for high speeds
      • easy to mount
      • suited for space restricted installations
      • low moment of inertia


    Overview