China Rubber Bearing Bridge Bearing Neoprene Bearing Pad

Elastomeric Laminated Neoprene Rubber Bridge bearing Pad
Elastomeric bearing pads is made from multilayers of rubber sheets and steel plates, by high temperature vulcanization bondingand it coFastener & Fitting mpress on vertical load and acBearing commodate horizontal rotation and provide lateral shear movement. Elastomeric bearing pads are the most economical solution used in conSensor struction of large span bridges and building.In order to avoid damage by movements of thermal expansion, vehicular movement, loading to piers, bridge bearings are used to accommodate these movements so as to reduce reaction forces and bending movement to within safety limits of structure. Neoprene Rubber as well as Natural Rubber is an ideal engineering material for bridge bearings as it is highly elastic and sufficiently soft to accommodate these movements without transmitting harmful stress and also it absorbs and isolates energy from impacts and vibrations.Structure:
- Plain rubber bearing pad is composed by solid rubber.

- Laminated rubber bearingis comporised of layers of rubber sheets and reinforced steel plates

-PTFE sliding bearing which addsteflon top for sliding
Product display
Feature:

A. Small friction coefficient.

B. Larger shear capacity.

C. Suitable for large span bridge construction.

D. Excellent buffering and shock isolation.

E. Withstand vertical load and rotation.

Type:

1. According toShape:it can be devided to rectangle rubber bearing pad and circular rubber bearing pad.

2. According to structure, it can be devided to common rubber bearing and ptfe slide rubber bearing

3. According to working temperature, it can be devided to

---neoprene rubber bearing pad, -25 degree to 60 degree

--natural rubber bearing, -40 degree to 60 degree

--EPDM bridge bearing, -45 degree to 60 degree

Material

Neoprene

Natural rubber

50

60

70

50

60

70

Hardness (Shore A)

45 to 55

55 to 65

65 to 75

45 to 55

55 to 65

65 to 75

Tensile strength (min)

2250 psi

2250 psi

2250 psi

2500 psi

2500psi

2500psi

ElongCutter & Tongs ation (min)

400%

350%

300%

450%

400%

350%

Compression set (max) Engraving Machine 22 hours

35% at 212ºF

35% at 212ºF

35% at 212ºF

25% at 158 °F

25% at 158 °F

25% at 158 °

Application field:Roadway highway bridge beam,water power engeering, houseanti-seismic facilities

common rubber bearing pad: suitable for bridges, having less than 30m bridge span and small displacement

PTFE sliding bearing: suitable for bridges, having large bridge span, multi-span continuous, simply supported beam continuous plates, big displacement
Production process: