Asymmetric pivot clutch

  • Extremely narrow design
  • Lowest noise level of SUCO clutches
  • Performance factor between 1.75 and 1.25 (depending on direction of rotation)
P-Type Asymmetric pivot clutch

Construction and mode of operation

Flyweights are normally mounted so that they can pivot on pins, which are fitted to a flange. There are tension springs which restrain neighboring flyweights until centrifugal force overcomes the spring force. Then the flyweights lift from their seats and the bonded linings contact the inside diameter of the clutch drum. Due to the asymmetric arrangement of the flyweights, the torque that can be transmitted by this type of clutch depends on the direction of rotation.

  • Flyweights
  • tension spring
  • lining
  • clutch drum
  • pins

Performance data and dimensions

Type Number D [mm] B [mm] 1 Standard rotational speed
low high
M at nE 750 and
nB 1500 [Nm]
motor power
[kW] 2
M at nE 1500 and
nB 3000 [Nm]
motor power
[kW] 2
P11 187 30 175 13 460 60
P12 193 30 180 14 500 70

Other sizes are available on request.

1) The transmitted power increases as the width B is increased.
2) Motor power is calculated using a safety factor of 2.

Final selection of the clutch should be accomplished by SUCO!

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

P-Type cross section and sketch
Variants of centrifugal elements

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