RESTON®SPHERICAL – Spherical bearings

mageba spherical Bearings are especially suited for bridges with big torsions and bridges located in very cold areas (temperatures lower than -30°C).

Media

Calotte with a hard chrome coating — image credits (ID:87923)

Manufacturing of mageba Spherical Bearings in own production facilities — image credits (ID:87924)

Quality controlled silicone grease is applied to a PTFE disk — image credits (ID:87925)

A calotte is placed on top of the concave-shaped lower part — image credits (ID:87926)

The top of the calotte always has a PTFE coating as well — image credits (ID:87927)

A sliding plate with stainless steel plate is lowered onto a calotte — image credits (ID:87928)

A working scale is needed for measuring horizontal displacements — image credits (ID:87929)

Independent external controllers also perform quality control — image credits (ID:87930)

More media…

Principle

mageba RESTON®SPHERICAL bearings are designed to transmit vertical forces while permitting large rotations by means of matching rounded upper and lower parts. Longitudinal and transverse movements of the superstructure can be facilitated as appropriate by a flat sliding interface between the top of the rounded element and a sliding plate, or alternatively, side-mounted guide bars can be provided to transmit horizontal forces.

Properties

High quality sliding materials
- High quality certified PTFE (with grease pockets)
- High quality controlled silicone grease
- Sliding plate of austenitic high-grade stainless steel
- Spherical parts coated with hard chrome or nickel
European Technical Approval
- Manufactured in accordance with the new European standard EN 1337-7
- Use of high quality certified materials
Guaranteed quality
- Quality Management System in accordance with ISO 9001: 2000 and EN 729-2
- Certified in accordance with DIN 18800-7