Raoyang County, Hengshui Elastomeric Bridge Bearing Supply – Custom Sizes, Lead Time and Technical Support

Published on 2026-10-17

Hengshui Zhanhe Engineering Rubber Co., Ltd. supplies elastomeric bridge bearing and related engineering rubber products to contractors, distributors and infrastructure projects worldwide. A laminated pad placed between the girder and the pier. It carries the vertical load, lets the deck move with temperature, and absorbs end rotation through uneven compression of the rubber layers.

This article explains the working principle, main types, typical applications, installation points, selection criteria, standards and frequently asked questions about elastomeric bridge bearing, and is intended for engineers, purchasers and project managers.

1. What Is Elastomeric Bridge Bearing?

A laminated pad placed between the girder and the pier. It carries the vertical load, lets the deck move with temperature, and absorbs end rotation through uneven compression of the rubber layers.

Working principle: The product works through elastic deformation and mechanical interlock to provide reliable sealing or load transfer.

2. Main Types

• Plain laminated bearing (GJZ rectangular / GYZ circular) for short and medium spans
• PTFE sliding bearing (GJZF4 / GYZF4) with a low-friction sliding pair for larger movements
• Crowned circular bearing whose spherical top follows the girder soffit gradient
• Sloped bearing made to match the longitudinal and transverse gradient

3. Typical Applications

• Precast beam bridges of 20-40 m span with hollow-core slabs, T beams or box girders
• Curved and skewed bridges where the reaction is not perpendicular to the axis
• Multi-span continuous decks combining fixed and sliding bearings
• Bearing replacement on existing bridges using flat jacks

4. Installation and Construction Points

1. Finish the pedestal to the required level and flatness, within 1 mm across the four corners
2. Place bearings by drawing number and check type, capacity and sliding direction
3. Bed the bearing on epoxy mortar or high-strength grout so the whole base is in contact, with no voids
4. Clean the stainless counter-face, apply silicone grease and grind the weld flush
5. Lower the girder slowly and symmetrically, then check each bearing for eccentric loading or loss of contact
6. Keep the pedestal drained and clear of debris and slurry residue

5. Selection Guide

• Confirm the design displacement, load grade and service environment before ordering.
• Select material grade according to temperature range, medium and durability requirements.
• Provide drawings or a specification list so that the manufacturer can verify sizes.

6. Standards and Quality Control

Elastomeric Bridge Bearing is manufactured and inspected according to applicable national and industry standards. Hengshui Zhanhe Engineering Rubber Co., Ltd. carries out batch inspection before delivery, and inspection certificates together with third-party test reports (where required by the project) can be provided.

Typical standards applied to this product family include Chinese national and transportation industry standards; equivalent international standards can be referenced upon request.

7. FAQ

Q: Is bulging at the side of the bearing normal?

A: A slight, even bulge is a normal response to compression. If one side bulges noticeably more than the other, it usually indicates eccentric loading or loss of contact, and the pedestal flatness and girder soffit should be checked.

Q: How much horizontal movement can a bearing take?

A: Shear deformation is normally limited to 0.7 of the total rubber thickness. A bearing with 42 mm of rubber allows roughly 29 mm of movement. Beyond that, increase the rubber thickness or use a PTFE sliding type.

Q: Why is 1 mm flatness on the pedestal required?

A: The pad works by full-surface contact. An uneven pedestal causes local overstress and loss of contact elsewhere, and the unloaded part can tear and expose the plates under repeated traffic loading.

Q: What should be checked when bearings arrive on site?

A: Verify type and certificate, inspect for cracks, blisters and exposed plates, and measure dimensional deviations. For important projects take samples for compressive modulus, shear modulus and ultimate compressive strength.

8. Price Factors

Cost is governed by compound volume (plan size times height), the number of reinforcing plates, whether a PTFE sliding pair is fitted, and whether a cold-resistant compound is specified. A common GJZ 200x300x42 pad is generally quoted between 200 and 500 yuan each. PTFE types add the sliding plate and stainless counter-face, and cold-grade compounds also carry a premium. Volume orders can be quoted by total piece count or tonnage.

Packing: standard export packing (woven bags, pallets or wooden cases). Delivery terms: EXW, FOB, CFR, CIF or DAP as agreed. Payment terms: T/T, L/C or other terms subject to negotiation.

9. Why Work With Hengshui Zhanhe Engineering Rubber Co., Ltd.

• Manufacturer based in Hengshui, Hebei — the engineering rubber industry cluster in North China, with in-house production and inspection.
• OEM and ODM supported: sizes, hardness, profiles and packaging can be customized to project or market requirements.
• Batch inspection before shipment; certificates of conformity and third-party test reports available when required.
• Technical support for selection, shop drawings and installation guidance, with export packing and worldwide logistics arrangement.

10. Contact and Quotation

For specification sheets, samples, pricing or project support, please contact Hengshui Zhanhe Engineering Rubber Co., Ltd.. Email: 150051331@qq.com · Tel/WhatsApp: +86-13833886677 · Factory: No.168, Zhangtuantuo Village, Dengzhuang Town, Taocheng District, Hengshui, Hebei, China. We reply to export enquiries within 24 hours on working days.