Bellows coupling BKBS 1222 with 22mm lenght and diameter of 22mm

Bellows coupling in a very small design with a length of 22 mm and a diameter of 12 mm. The BKBS 1222 differs from its sister, the BKBK 1222, in that it is fastened with a grub screw and has a slightly higher weight of approx. 8 g and a slightly lower moment of inertia of 1.8 gmm2. The other values are the same. The non-magnetic bellows made of bronze should be noted, the hubs are made of nickel-plated brass. One possible application is, for example, the slip ring unit of an electric motor.


Technical data- bellows coupling with bronze bellows

technical data   BKBS 1222
max. speed min-¹ 10.000
max. torque Ncm 15
max. offset of shafts    
          radial mm ± 0,2
          axial mm ± 0,4
          angular Grad ± 2,5
torsion spring stiffness Nm/rad 45,0
radial spring stiffness N/mm 30,0
moment of inertia gcm2 1,8
max. clamping torque Ncm 50
temperature range °C -40/ +140
weight appr. g 8
material bellow brass nickelplated
material flange bronze  Cu Sn 6 nickelplated

Bore combinations

d1/d2 02 03 04 05 06
02 x x x x x
03   x x x x
04     x x x
05       x x
06         x


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