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Marca: Zedex

Bucin p/ veículos de carga

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COD: JG_1660

Plain bearing bush in the steering of straddle carriers
Material
ZX-100K as replacement for bronze.
Description of the application
Straddle carriers are lift trucks, that transport ship containers in the harbour.
The containers will be lift in the middle of the base frame of the straddle carrier and can be carried to the desired location. The plain bearing bushes are used in the steering mechanism of the wheels and allow their rotation. Previously, bronze has been used for the bushings.
Load
The maximum bearing force is 350kN at the season-dependent ambiente temperature.
Problem
High maintenance costs; the bronze bushings must be lubricated.
Problem-solving
Now plain bearing bushes made of ZX-100K are used (Ø 280 / 240 x 150 mm). The bushings work in dry running conditions. The stainless mating rotating surface is spray coated and it has got a hardness of 68 HRC. The sealing is realized by a stem seal. This is assembled with two O-Rings in approx. 6 mm deep groove.
Working life
With this sealing system, after 3 years of service life, the wear was only 0,05mm without any sign of deformation.
Advantages
Maintenance-free thanks to dry running condition, low wear.

Plain bearing bush in the steering of straddle carriers
Material
ZX-100K as replacement for bronze.
Description of the application
Straddle carriers are lift trucks, that transport ship containers in the harbour.
The containers will be lift in the middle of the base frame of the straddle carrier and can be carried to the desired location. The plain bearing bushes are used in the steering mechanism of the wheels and allow their rotation. Previously, bronze has been used for the bushings.
Load
The maximum bearing force is 350kN at the season-dependent ambiente temperature.
Problem
High maintenance costs; the bronze bushings must be lubricated.
Problem-solving
Now plain bearing bushes made of ZX-100K are used (Ø 280 / 240 x 150 mm). The bushings work in dry running conditions. The stainless mating rotating surface is spray coated and it has got a hardness of 68 HRC. The sealing is realized by a stem seal. This is assembled with two O-Rings in approx. 6 mm deep groove.
Working life
With this sealing system, after 3 years of service life, the wear was only 0,05mm without any sign of deformation.
Advantages
Maintenance-free thanks to dry running condition, low wear.

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