To optimize the selection of a vibration isolator one should consider:

  • device’s full mass
  • amount of points of support
  • load concentration on a point of support
  • rotational speed of spinning/rotating elements
  • possible deflection

T type bushing vibration isolators selection and construction data tables.

Type and size of a vibration isolator Axile load range


Maximum deflection Dimensions [mm] Mass 1 pc. [kg]
A B D d A h* MxL
T – 4 5-70 15-120 3 80 9 64 45 M12x50 0,3
T – 8 100-250 200-480 6 140 11 115 69 M16x85 1,2
T – 8 – W 450-1000 6
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* without load
** possibility of manufacturing a screw with a different thread M and length L.


Vibration isolator’s marking:
T – type
XX – vibration isolator’s size (4-8)
Y – load range (A, B or W)

Exemplary order:
Bushing vibration isolator T-XX-Y
Bushing vibration isolator T-4- A pcs.
Bushing vibration isolator T-8- W pcs.

Dome vibration isolators characteristics.

Axial load characteristics
T – 4 – A T – 4 – B
Charakterystyki obciążeń osiowych
T – 8 – A T – 8 – B T – 8 – W

SCREW – with leveling, mounting in unthreaded through holes

gb gb

Order of operations:

  1. anchor the vibration isolator to the floor or a support structure at the mounting location – make sure that the coaxiality is kept between the mounting screws and the holes in the base or the frame of a machine
  2. lower a machine inserting the mounting screws into the holes in the base or the frame of the machine
  3. level a machine by turning the lower leveling nuts right – lifting, left – lowering, level evenly on all mounting screws keeping the screws in a vertical position
  4. secure the leveling of a machine by clamping a spring washer on the mounting screws using the upper locknut
  5. verify the leveling of a machine after ca 1 week of operation and correct the leveling if required.

A machine should be leveled at a minimal distance from the floor or the support structure, keeping the mounting screw in a vertical position.