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Spherical Plain Bearing
| Stock |
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| Brand | INA |
| Article number | GE420-DW-B-XL INA |
| Inside diameter | 420mm |
| Outside diameter | 560mm |
| Width | 190mm |
The GE420-DW-B-XL INA is a spherical plain bearing. Spherical plain bearings are two-piece plain bearings. They have no rolling elements, but consist of an inner and outer ring. The inner ring has a convex outer surface. The outer ring has a concave inner surface. This construction gives spherical plain bearings their high load carrying capacity and capacity to accommodate misalignment.
The GE420-DW-B-XL INA has a steel-on-PTFE sliding contact which makes it maintenance-free. PTFE is a special plastic. During the run-in period of these plain bearings, particles of PTFE are deposited on the opposite running surface. They fill in the small irregularities of the inner ring surface, creating a smooth surface. As a result, the components fit each other perfectly.
