Metal Bellows Coupling – Model CTB-2

with clamping hubs

  • small installation space
  • low moment of inertia
  • easy to install
  • wear and maintenance free
  • hub material Series 2 - 150: aluminum
  • hub material Series 150 - 1500: steel
  • bellows: stainless steel
propertiesunit of measurementunit symbol25101530601503005008001500
rated torque(Nm)TKN25101530601503005008001500
overall length(mm)A±234 | 3942 | 5046 | 5659 | 6670 | 7879 | 8992 | 103113 | 126118 | 133141167
outside diameter(mm)B24,5324049566681110124132157
clamping fit length(mm)C1214142227293443433545
inner-Ø H7(mm)D1/24 - 126-166-248-2810-3214-3519-4025-6035-6240-7550-80
distance(mm)E4558811121515,517,522,5
distance(mm)F81115182024274043,54855
fastening screwsGM3M4M4M5M6M8M10M12M164 x M164 x M20
tightening torque(Nm)G2448,5153570120200250470
moment of intertia(10-3kgm2)Jges0,002 | 0,0030,01 | 0,020,02 | 0,030,06 | 0,070,13 | 0,140,27 | 0,32,2 / 0,75 | 2,3 / 0,88,9 | 9,114,7 | 14,916,540
approximate weight(kg)0,030,060,10,20,40,62,4 / 1568,514,5
CT-B2-21-01

Bellows glued up to series 500 and welded as half-shell version 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