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Testing department

FKL testing department used for testing of all new design solutions before their release into serial production, as well as when making changes in the design of existing ones.

Tests are also conducted to assess the quality of new bearing components, in order to confirm their use in serial production.

Bearings in agricultural machinery are often exposed to extreme loads, and at the same time work in contaminated conditions. It is also very important to note that the nature of the load in each agricultural application is very specific. To ensure that FKL bearings have a maximum service life, we check their design in conditions similar to operating, and very often in even more severe ones. To simulate such conditions, FKL uses both standard and special service life test rigs, which are designed and manufactured directly in our factory.

FKL Test Room has 10 test rigs.

5 rigs in 3 sizes for laboratory testing of service life, in order to check the designed dynamic load capacity of a certain type of bearing:

  • 2 rigs size 543 GPZ-11 (SSSR)
    • d=25÷60
    • D=62÷120
    • Fr,max=45kN
    • Fa,max=30kN
    • n,max=2500 rpm
  • 2 rigs size 544 GPZ-11 (SSSR)
    • d=55÷110
    • D=100÷200
    • Fr,max=150kN
    • Fa,max=60kN
    • n,max=2500 rpm
  • 1 rig size 545 GPZ-11 (SSSR)
    • d=100÷150
    • D=180÷320
    • Fr,max=360kN
    • Fa,max=180kN
    • n,max=1500 rpm

With the help of a special test rig, FKL can determine the service life time of the hub expressed in hours or hectares. Testing is performed at speeds and loads close to or greater than those encountered during field work. The test rig is used to check and validate the new hub design and its expected service life time. The compliance of the quality of materials and components obtained from new suppliers with the product requirements can also be checked.

1 rig for accelerated testing of the Hub bearing life with load action similar to field conditions.

  • Max load= 15 kN
  • Test speed=450 rpm

The test rig enables quality check of the solution design, primarily sealing, through mud test. Comparative tests of seals from different suppliers can be performed also.

2 rigs for Mud slurry testing.

  • Max load Fr=Fa= 5 kN
  • Test speed=2450 rpm

Bearings for agricultural machinery often work as part of closed assemblies, where moisture does not penetrate. At the same time bearings are exposed to the negative influence of dust. Dust chamber rig is developed exactly for such cases and it allows to check the design and sealing quality in a dry and dusty environment.

1 rig for Testing in the Dust chamber witout load.

Bearing units mounted on rollers, regardless of the type of machine, usually encounter the problem of missalignment. Due to design and production techonology of rollers, it is very expensive to ensure the alignment of both ends of the roller and they are often not in the same axis.

To check the bearings in such conditions, FKL engineers designed a special rig, which simulates the working conditons, allows the application of radial and axial loads, as well as changing of angles between one and the other end of the roller, in order to optimize the internal design of the bearing unit for use on rollers.

1 rig for Packer Roller bearing units testing in near real conditions.

Max loads:

  • Fr=30kN
  • Fa=15kN