Bellows coupling                                    BKXK 3340: 33mm diameter & 40mm length, with clamping hub

The BKXK 3340 bellows coupling is a performance-oriented extension of the BKXK family due to its higher performance values = versions with stainless steel bellows and aluminium clamping hub for more flexible mounting options, even on unmachined shafts. For example, the possibility of use up to a speed of 15,000 rpm or 500 Ncm torque should be emphasised.
With a diameter of 33 mm, the overall length is 40 mm. Please note that there is also a larger version, the BKXK 4048 - and of course many smaller versions. Examples of applications can be found on the "Bellows couplings" page.

Technical data- bellows coupling BKXK

Technical data


BKXK 3340

max. speed min-¹ 15.000
max. torque Nm 5
max. offset of shafts    
          radial mm ± 0,3
          axial mm ± 0,5
          angular Grad ± 3
torsion spring stiffness Nm/rad 750
radial spring stiffness N/mm 100
moment of inertia gcm2 8
max. clamping torque Nm 4
temperature range °C -40/ +140
weight app. g 60
material flange aluminium anodised
material bellows stainless steel  

Bore combinations BKXK 3340

d1/d2   08 10 12 14 16
08 x x x x x
10   x x x x
12     x x x
14       x x
16         x


To download the step file, please select the required bore combination.

Technical drawings