Pin-guided clutch with three flyweights


  • Low noise level by guided pins
  • Performance factor of 1.5
  • Compact design
S-Type Pin-guided clutch with three flyweights

Construction and mode of operation

The cylindrical hub carries three flyweights which are located by and can slide on cylindrical pins . Inside the flyweights there are tension springs which restrain neighboring flyweights until centrifugal force overcomes the spring force. Then the flyweights lift from their seats and the linings on the flyweights contact the inside diameter of the clutch drum. Friction between the linings and the clutch drum allows torque to be transmitted.

  • cylindrical hub
  • flyweight
  • cylindrical pin
  • tension springs
  • linings
  • clutch drum

Performance data and dimensions

Type NumberD [mm]B [mm] 1d max. [mm]standard bore
d [mm] (inch) 2
Standard rotational speed
M at nE 750 and
nB 1500 [Nm]
motor power
[kW] 3
M at nE 1250 and
nB 2500 [Nm]
motor power
[kW] 3
M at nE 1500 and
nB 3000 [Nm]
motor power
[kW] 3
S0480252415 (3/4; 7/8)4.30.3121.617.52.8
S0590253014; 30 (3/4; 1)7.50.62122.8314.9
S06100252420; 24; 28 (3/4; 7/8)110.8304.0437.0
S07110253028; 30 (1)151.2456.06410.0
S08125254020; 30 (1; 1/2)302.48511.012420.0
S09138253017; 30; (1; 1 1/8)403.011215.016025.0
S10150354038; (1 1/8)786.021628.031049.0

1) The transmitted power increases as the width B is increased.
2) Tapered bores and special dimensions can be manufactured on request.
3) Motor power is calculated using a safety factor of 2.

Final selection of the clutch should be accomplished by SUCO!

d = bore dia.
d max. = max. bore dia.
B = flyweight width
D = inside dia. of drum
M = torque
nE = engagement speed
nB = operating speed

S-Type cross section and sketch
Variants of centrifugal elements

To accommodate the variety of transmission requirements, SUCO offers a wide and flexible product range.