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PTFE sliding elastomeric bearing

2019/5/17 15:57:40  387
PTFE sliding elastomeric bearing

Address: 2-2911, Taiyi Shangcheng, Taocheng Dist., Hengshui, Hebei, China (Mainland)
Tel: 86-0318-6666807
Mobile Phone: 86-18831898808
WeChat: 18831898808
E-mail: hongruiboya@shuanglinrubber.com

  • description
  • product display
  • physical properties
  • applications




SL-PTFE sliding elastomeric bearings has the surface of a layer of polytetrafluoroethylene (PTFE),

which provides service-level thermal displacement capacity to accommodate movements of a bridge

superstructure in regions of low to moderate seismicity.


Shuanglin can provide EN1337, AASHTO, China Standard PTFE elastomer bearings and can be customized



Top steel plate                                                    Stainless steel plate                                                    PTFE bearing



Installation structure












Rectangle                                                           Round







Customized









Physical and mechanical properties of elastomer

Characteristics

Requirements

CR

NR

EPDM

Hardness

60±5

60±5

60±5

Tensile strength / MPa

17.0

18.0

15.0

Elongation at break / %

400

450

350

Brittle temperature ℃

-40

-50

-60

Compression set %

15

30

25

Ozone resistance

Elongation: 20%

Temperature: 40℃

 100x10 -8

25x10 -8

100x10-8

No crack

No crack

No crack

Accelerated aging

Condition ℃ x h

100x70

70x168

100x70

Elongation Strength

change rate % ≤

15

15

15

Tensile Strength

change rate % ≤

40

20

40

Hardness change

0-10

-5-10

0-10

Bond strength of elastomer and steel

10

10

10

Bond strength of elastomer and PTFE

7

7

7


Physical and mechanical properties of elastomer

Characteristics
Index
Density / (kg/m3) 2130-2200
Tensile strength / MPa ≥30
Break elongation / % ≥300%
Ball-indentation hardness (H132/60) / MPa
23-33








It can be used as movable bearing on long-span bridge(> 30 meters), simple beam

continuous slab bridge and the multi-span continuous beam bridge. or as slide block

under the continuous beam jacking, T-beam transverse displacement and large equipment.



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