jingtong rubber bearing pad china supplier

Hengshui JingTong engineering rubber co., LTD is a professional manufacrure that engaged in highway Bridges, tunnels, water conservancy, electric power, railway and other projects with supporting the use of engineering rubber products. Our company mainly produce : bridge rubber inflatable mandrel (hollow slab bag), rubber balloon (FengDuQi pipe, rubber water bag), plate rubber bearing (rubber pad), pot rubber bearing, ball bearings, bridge expansion device, rubber water stop series bridge engineering, waterproof engineering products.We are new company that rises in the domestic engineering rubber industry from 2009, leading technology, the mature technology , reliable quality.Our factory is located in hengshui city, hebei province north development zone.Our company consists of sales department, administrative office, supply department, production department, QC department, finance department, after-sales service department.Bridge inflatable mandrel machine in workshop, bridge bearings, bridge expansion device workshop, cutting workshop, a total of five workshop.JingTong rubber covers an large area , the existing professional senior technical personnel is 20, diligence and professional management team, all staff with scientific management, rigorous truth-seeking attitude and integrity and reliable service concept for the new and old customers with the highest ratio of engineering rubber products.

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Round ball crown plate rubber Bearing is at the top of the plate rubber bearing made into spherical surface with rubber and rubber ball crown center for 4 to 8 mm thick.Besides highway bridge plate rubber bearing of all functions, through the stress state of spherical cap regulation, it can be applicable to vertical and horizontal gradient of the overpass and viaduct, to adapt to the 2% to 4% under the vertical and horizontal slope, the bridge and the center of the bearing contact surfaces tend to be the center of the circular plate rubber bearing.The percussive force by spherical surface rubber gradually spread to the following several layers of steel plate and the rubber layer.In bearing base and a circle diameter D = 2.5 mm semicircle rubber rings, bearing force on deformation pressure, first of all from the bottom of the circle to adjust the stress state of bottom, so as to improve or avoid the production of rubber bearing underside road.the phenomenon,make the pedestal base force uniform.

Round ball crown plate rubber Bearing

Bearing Diameter /mm

d<200 200≤d≤350 350 ＜ d≤500 d>500

Spherical Head Height/mm 4 6 8 10

The classification of the round ball crown rubber bearing this product: can be divided into: ball crown round plate bearing and ptfe crown round plate bearing.If the bearing base paste a piece of the same as the bearing surface size of teflon plate is called a PTFE ball bearing. Rubber categories: CR (neoprene);NR (natural rubber) Dimensions: d (diameter) xt (thickness) (mm)Form code: F4 said four fluorine skateboard bearings;No adding code is the common bearing.Name code: TCYB said ordinary round ball crown rubber bearing

Application:Suitable for all kinds of arrangement of complex, and vertical and horizontal larger overpass and viaduct, its scope of slope using 3 ~ 5%, also can be adjusted according to the needs of different slope ball crown radius.

Tetrafluoroethylene plate rubber bearing GJZF4, GYZF4 series four fluorine board type bearing are sticked a layer of 1.5 mm - 3 mm thick teflon plate on the surface of plate rubber bearing.Besides all the features of GYZ series rubber bearing,Teflon board made it very low that the coefficient of friction between beam bottom of stainless steel plate,also Can make the horizontal displacement of bridge superstructure without being limited by the shear deformation of the bridge bearing itself, can satisfy some needed large displacement of the bridge.

This product was tested by the hengshui city Technical Supervision Bureau in 1998 and put into production. In recent years,it is widely used in the factories, mines, machinery, electronics,machinery and equipment, kitchen equipment.

Scope of usagea.Mainly used for large span > 30 meters span continuous slab bridge beam, the multi-span continuous girder bridgeb.Used as a slide activity on continuous beam pusher, T type beam transverse sliding, large equipment. Four fluorine plate rubber bearing load level is divided into 100 kn - 10000 kn

Specification1, according to the ministry of communications JT\T4-93 specifications series.2.The teflon plate thickness of 1.5 mm, 2 mm, 3 mm, etc. that pasted on the surface.3.special specifications can be negotiated by users4.the bottom of the beam steel and stainless steel plate can be supplied for form a complete set .

Models and the suitable temperatureNeoprene: + 60 to 25 ℃ ℃Natural rubber type: 60 ~ + 40 ℃ ℃The ternary 3-20 type: + 60 ~ 45 ℃ ℃

This kind rubber bearing is simple structure, low cost, no maintenance, easy to replace the buffer isolation, low building height, so it is very widly used in the bridge all over the world.

Railway plate rubber bearing Railway plate rubber bearing is one kind product made from rubber sheet that can move more and thin plate by adhesive curing pressure into a rubber bearing,It can pass bearing force of upper structure of CWR,and can apply beam structure has the horizontal displacement and rotation of the secret. Due to the plate bearing by hyperactivity rubber sheet and thin steel plate after adhesive curing pressure, and can apply beam structure has the horizontal displacement and Angle of the secret.

This product can be divided into: the ordinary type plate bearing and cold plate bearing two kinds.Including the surface into normal use neoprene rubber, work in 25 ~ + 60 ℃ ℃.Type cold resistant rubber made made from natural rubber,work in-40℃～ +60 .℃

Selection specifications & Method of application

A. When the user selects rail plate rubber bearing, he need understand that the deviation range bearing capacity should be controlled in 10%.GJZF4&GYZF4 plate bearing should be installed horizontally, and should set up the steel plate. There should put 5201 - a - 2 silicone oil between four fluorine board and stainless steel plate.You must set the dust cover after installation.B. When calculating bearing capacity,you should caculate by the effective area (steel plate size).To calculate the horizontal shear stress,you should caculate according to the bearing surface area of MAO (nominal size).C. The shorter side should be placed along the bridge when install the bearing.

Rectangular plate slope shape rubber bearing

Rectangular plate slope bridge structure characteristics When using slope shape rubber bearing, the longitudinal slope > 1% when I want to be a beam body use, general plate rubber bearing when installation, must be in between the bottom of the beam and bearing set consistent with bridge slope wedge plate (or wedge concrete block), to keep bearing horizontal.But the process is complex, this method was expensive.For convenient construction , we designed the slope shape rubber bearing, which is on basis of ordinary rectangular, circular plate and the ball crown round plate bearing or four fluorine slide type bearing surface added with consistent bridge slope wedge structure, and the wedge part with bearing body become integral after one time mold vulcanization.

Rectangular plate slope bridge rubber bearing is to change steel plate to wedge plate in the first layer in the middle of the rectangular bearing,Wedge plate of the slope are: A - 1.5%, B - 2.0% - 2.5% C, D - 3.0%, E - 3.5%.Its abutment slope shape is consistent with wedge plate.It is used for slope is greater than 10% of the precast simply-supported bridge, besides has the general plate bearing performance and simple structure, easy installation, no longer need to set up the slope in the bottom of a bridge wedge plate \ saving investment, etc.

Highway bridge plate rubber bearing

Highway bridge plate rubber bearing by rubber piece and stiffening plate steel plate, and formed in the steel plate all wrapped in rubber elastic material of rubber bearing. Plate bearing has enough vertical stiffness for bearing the vertical load, the reaction force of the upper structure can be reliably transmitted to pier, good elasticity, to adapt to the rotation of beam end; Have larger shear deformation in order to meet the horizontal displacement of the upper structure.

Highway bridge plate rubber bearing classification method1, The structure: a. common plate rubber bearing is divided into rectangular plate rubber bearing (code GJZ),circular plate rubber bearing (code GYZ); b. four fluorine skateboarding rubber bearing is divided into rectangular four fluorine skateboarding rubber bearing (code GJZF4), round four fluorine skateboarding rubber bearing (code GYZF4).2, The bearing material and the suitable temperature:a. type rubber bearing under normal temperature, the use of chloroprene rubber (CR) production, suitable temperature to 25 ~ 60 .℃b. hardy type rubber bearing, using natural rubber (NR) production, applicable temperature - 40 ~ 60 .℃

Highway bridge rubber bearing code representation method:Eg1: highway Bridges rectangular ordinary neoprene bearing, short edge size is 350 mm, long edge size is 400 mm, thickness of 50 mm, expressed as GJZ350 x 400 x 50 (CR).Eg 2: highway Bridges round four fluorine skateboard natural rubber bearing, a diameter of 400 mm, thickness of 50 mm, expressed as: GYZF4 400 x 50 (NR).

According to the structure of the highway bridge plate rubber bearing pattern classification is as follows: ordinary plate rubber support, the rectangular ordinary plate rubber bearing (GJZ series), circular ordinary plate rubber bearing (GYZ series), plate rubber support circular plate rubber bearing four fluorine (GYZF4 series, ball crown round plate rubber bearing (TCYB series)) teflon plate rubber support, the rectangular plate rubber bearing (GJZF4 series), four fluorine ball crown four fluorine plate rubber bearing (TCYBF4 series)

The product besides have the function of the ordinary support, also has the effect on the beam end force by the spherical surface of rubber layer adjust the position of the bearing center will force gradually spread to circular plate rubber bearing steel and rubber layer, make the bearing force uniform, especially suitable for skew Bridges, overpasses and other places of slope of the bridge.

衡水京通工程橡胶有限公司Hengshui JingTong Engineering Rubber Co.,LtDNanwangzhuang Village,Taocheng District,Hengshui City,Hebei Province,ChinaTel:86-318-2877988Fax:86-318-2877988Phone:86-15731809416Email:[email protected] [email protected]