Metal Bellows Coupling – Model CTB-4

with conical hubs and conical bushings

  • with conical hubs
  • high clamping forces
  • low moment of inertia
  • easy to mount
  • wear and maintenance free
  • hub material: steel
  • bellows: stainless steel
propertiesunit of measurementunit symbol15306015020030050080015004000
rated torque(Nm)TKN15306015020030050080015004000
length(mm)A±248 | 5556 | 6466 | 7674 | 8677 | 8989 | 10397 | 110114141196
outside diameter bellows(mm)B4955668190110124133157200
fit length(mm)C19212732324141496181
inner-Ø H7(mm)D1/210-2212-2312-2915-3715-4424-5624-5630-6035-7050-100
6 x fastening screwsEM4M5M5M6M6M8M8M10M12M16
tightening torque(Nm)E468121418254070120
3 x draw-off screwsFM4M4M5M5M5M6M6M8M8M10
outside diameter hub(mm)G4550617483103114116141181
moment of inertia(10-3kgm2)Jges0,1 | 0,10,2 | 0,20,4 | 0,41 | 22 | 35 | 69 | 10133586
approximate weight(kg)0,20,40,81,623,746824
CT-B4-21-01

Bellows glued up to series 500 series and welded from series 800.

propertiesunit of measurement153060150200300500800150040006000
number of waves4 | 64 | 64 | 64 | 64 | 64 | 64 | 66585
torsional stiffness approx.(103 Nm/rad)22 | 2239 | 3593 | 53177 | 107255 | 200535 | 405400 | 300480121536705700
spring stiffness axial approx.(N/mm)38 | 1852 | 3276 | 5286 | 6594 | 63112 | 7472 | 48110322936880
spring stiffness lateral approx.(N/mm)460 | 1371435 | 02151400 | 02601620 | 03502170 | 06403860 | 11403010 | 084020003600692015000
Hub axial(mm ±)1 | 21 | 21,5 | 2,02 | 32 | 32,5 | 3,52,5 | 3,53,53,53,53
Hub lateral(mm ±)0,15 | 0,200,2 | 0,20,20 | 0,250,20 | 0,250,25 | 0,300,25 | 0,300,30 | 0,350,350,350,40,4
Hub angular(°)1,0 | 1,51,0 | 1,51,0 | 1,51,0 | 1,51,0 | 1,51,0 | 1,51,0 | 1,51,51,51,51,5
CT-B1B-21-01

Temperature range: -30°C to +100°C