Coupling KS731EX for OS(A)74EX

Risk of explosion due to wear of the elastomer elements of the coupling!
danger

Risk of explosion due to wear of the elastomer elements of the coupling!

Only use a specially marked coupling which is approved and authorised for the use in explosive atmospheres!

Sketch

Dimensions:

Dimensional drawing of coupling KS731 incl. KS731EX
Dimensional drawing of coupling KS731 incl. KS731EX

A

B

C

D

KS731EX, bore for shaft D75
part no. 342 023 02

Ø 75 mm

14 mm

20 mm

79.9 mm

KS731EX, bore for shaft D20, pre-drilled
part no. 442 023 01

Ø 20 mm

14 mm

–

–

Connection positions

Connection positions

1

Compressor side

2

Motor side

3

Compressor shaft

4

Motor shaft

Dimensions (if specified) may have tolerances according to EN ISO 13920-B.

The legend applies to all BITZER couplings and includes connection positions that do not exist in every series.

If the motor is different, an individual design of coupling and housing is necessary!

If the motor is different, an individual design of coupling and housing is necessary!

Make sure that the torque transmission between the motor shaft and the coupling half in contact is sufficient (Check torque transmission).