Herculon Modified Type B Bearings (HLMB)

Bearing Pads

Herculon Modified Type B Bearings (HLMB)

Herculon Modified Type B (HLMB) Bearings have been developed to fulfil the need for a simple, low friction bearing on corbels and columns where a continuous slipjoint is inappropriate. They can be used under cast in-situ and post-tensioned slabs and beams.

Materials

Consist of a stainless steel top plate roughened on the upper surface and polished on the lower. This plate slides against a Hercuflon coated natural rubber pad that is bordered by polystyrene strips.

Types

Two basic types of HLMB bearing available:
• Standard
• Seismic
The seismic bearings are manufactured from the same materials as the standard bearings, but they have greater all round expansion capacity (±50 mm) to accommodate the larger movements which occur during seismic shock.

Design

Coefficient of friction: 0.06
Expansion capacity: ±20 to ±50mm
Maximum contact stress: 3 MPa
Maximum temperature: 80°C
Maximum rotation: up to 0.006 radians

*Non standard bearings can be manufactured to accommodate larger expansions and differing rotations. The standard bearings should not be used under precast elements, a modified version being available for this situation. If in any doubt, please contact our Technical Department.

INSTALLATION

HLMB bearings should be installed as shown in Fig 2-2

Fig 2-2

ORDERING

Nine most commonly used types of HGSJ and HSSJ are represented in Table 1-7. Widths are reflected in the Part Number types.
Small quantities (1-5 lengths) of HGSJ and HSSJ are supplied in rolls (approximately 300-500mm in diameter) on a small skid, except for the Cavity Bridge Types, they are always supplied flat.
Medium and large quantities are suppled flat on a pallet in 3000 and 2400mm lengths accordingly.

Fig 2-3

Our Services

Design

We serve as technical liaisons with consulting engineers and builders at the design stage of a project. Provision of detailed specifications, calculations and feedback on drawings for project specific applications.

Manufacturing

All products in the Hercules™ range are manufactured and tested in compliance with the relevant standards: AS5100.4:2017, BS5400, AASTHO and MS ISO 9001.

Technical Support

We provide detailed installation guidance that is specific to each project and site conditions. Remote and/or on-site assistance provided by via comprehensive data sheets and trained personnel where appropriate.

Custom Solutions

Our capabilities include providing tailored solutions to challenging engineering scenarios, where conventional methods of design, manufacturing and installation may not be suitable.

Design

Manufacturing

All products in the Hercules™ range are manufactured and tested in compliance with the relevant standards: AS5100.4:2017, BS5400, AASTHO and MS ISO 9001.

Technical Support

Custom Solutions

Our capabilities include providing tailored solutions to challenging engineering scenarios, where conventional methods of design, manufacturing and installation may not be suitable.