D
G1
ISO 4762
d
1
d
2
L±2
K
H
I
C
1
D
1
L
d
1
;d
2
min-max
C
1
D
1
H I K
mm mm mm mm mm mm mm
18 71 8 - 26 19,2 45 47 6 18
30 73 10 - 30 24,1 55 56 8 20
60 89 12 - 35 28,6 64 67 10 24
80 103 14 - 42 32,4 80 84 12 28
150 103 14 - 42 32,4 80 84 12 28
200 113 22 - 46 36,9 90 93 13 31
300 115 24 - 60 36,9 110 110 13 39
500 122 35 - 64 40,4 119 122 15 43
800 140 40 - 75 45,2 132 139 17 48
T n
max
C
r
C
a
C
Tdyn
ΔK
a
ΔK
w
ΔK
r
J D
G1
T
A1
Gw
Nm 1/min N/mm N/mm 10
3
Nm/rad mm mm 10
-3
kgm
2
mm Nm kg
18 22 12700 85 40 6 0,5 1,5 0,2 0,06 1 x M5 6 0,143
30 36 10200 220 30 25 0,5 1,5 0,2 0,1 1 x M6 12 0,263
60 75 8600 330 55 50 0,5 1,5 0,2 0,3 1 x M8 30 0,434
80 95 6800 400 55 75 0,5 1,5 0,2 0,9 1 x M10 60 0,792
150 180 6800 600 85 100 0,5 1,5 0,2 0,9 1 x M10 85 0,792
200 240 6300 450 85 120 0,5 1,5 0,2 1,5 1 x M12 100 1,117
300 360 5900 1500 150 280 0,5 1,5 0,2 3,2 1 x M12 120 1,495
500 600 4900 1000 85 310 1 1,5 0,2 4,9 1 x M14 190 2,038
800 800 5000 6200 100 780 3,5 1,5 0,35 17,5 2 x M16 250 6,06
Tech Paper
Partner for Performance
EN
08.2019
www.ringfeder.com
1
Sectional view
Metal Bellows Couplings
RINGFEDER
®
GWB AKD
Metal bellows coupling with clamping hubs
Transmission of the couplings transmissible torque T can not longer be guaranteed for
certain with borings < dmin. Types with borings < dmin, however, can be supplied.
Moment of inertia and weight (mass) are calculated with reference to the largest bore
size.
To continue see next page
degree
Size
Size
Ø8 Ø9 Ø10 Ø11 Ø12 Ø14 Ø15 Ø16 Ø18 Ø20 Ø25 Ø30 Ø35 Ø40 Ø45 Ø50 Ø55 Ø60 Ø64 Ø70 Ø75
18 18 20 22 22 22 22 22 22 22 22 22 --- --- --- --- --- --- --- --- --- ---
30 --- --- 36 36 36 36 36 36 36 36 36 36 --- --- --- --- --- --- --- --- ---
60 --- --- --- --- 75 75 75 75 75 75 75 75 75 --- --- --- --- --- --- --- ---
80 --- --- --- --- --- --- 95 95 95 95 95 95 95 95 --- --- --- --- --- --- ---
150 --- --- --- --- --- --- 180 180 180 180 180 180 180 180 --- --- --- --- --- --- ---
200 --- --- --- --- --- --- --- --- --- --- 240 240 240 240 240 --- --- --- --- --- ---
300 --- --- --- --- --- --- --- --- --- --- 360 360 360 360 360 360 360 360 --- --- ---
500 --- --- --- --- --- --- --- --- --- --- --- --- 600 600 600 600 600 600 600 --- ---
800 --- --- --- --- --- --- --- --- --- --- --- --- --- 800 800 800 800 800 800 800 800
Tech Paper
Partner for Performance
EN
08.2019
www.ringfeder.com
2
Disclaimer of liability
All technical details and notes are non-binding and cannot be used as a basis for legal claims. The user is obligated
to determine whether the represented products meet his requirements. We reserve the right carry out modifications
at any time in the interests of technical progress.
Metal Bellows Couplings RINGFEDER
®
GWB AKD
Transmissible torque T [Nm]
L = Total length
d
1
;d
2min
= Min. bore diameter d
1
/d
2
d
1
;d
2max
= Max. bore diameter d
1
/d
2
C
1
= Guided length in hub bore
D
1
= Outer diameter
H = Clearance diameter
I = Distance between center screw hole
and hub end
K = Distance shaft axis - clamping screw axis
T = Transmissible torque at given T
A
n
max
= Max. rotation speed
C
r
= Radial spring stiffness
C
a
= Axial spring stiffness
C
Tdyn
= Dynamic torsional stiffness
ΔK
a
= Max. permissible axial misalignment
ΔK
w
= Max. permissible angular misalignment
ΔK
r
= Max. permissible radial misalignment
J = Total moment of inertia
n
Sc1
= Quantity of screws D
G1
D
G1
= Thread
T
A1
= Tightened torque of clamping screw D
G1
Gw = Weight
Series/Size Bore diameter d
1
Bore diameter d
2
Further details
AKD 150 30 35 *
More information about
RINGFEDER
®
GWB AKD
on www.ringfeder.com
Explanation
Ordering example
* Keyway or stainless steel
Size