Structural Design Considerations

Expansion bearings should be mounted with the flat stainless steel sliding surface facing down so as to avoid the accumulation of dirt and debris that can affect the sliding performance of the bearing over time.

Fixed bearings may be mounted with any face up.

Slide plate offsets can be provided when specified.

Spherical bearings are not designed to take bending moments. They must be provided with even, flat seats. High-strength grout, rubber, or fabric pads are recommended. Leveling blocks or bolts must be removed after erection. Shims, when used, must cover the entire bearing area.

Formwork may be constructed around a bearing for poured-in-place concrete structures. Seal between the bearing and formwork to prevent contamination by laitance or concrete. Offsets should be established in advance.

Spherical bearings can accommodate many anchoring systems. While we do not cover those systems here as they are considered to be part of the structural engineering design, suggestions for best compatibility with our bearings will be offered on request.