Alignment needle roller bearings have an outer ring with a convex sphered outside surface. Two polymer seat rings with a concave sphered inside surface that is encased in a drawn sheet steel sleeve are fitted over the outer ring, enabling the bearing to align itself. Alignment needle roller bearings are therefore insensitive to static misalignment of the shaft relative to the housing.
Alignment needle roller bearings have an outer ring with a convex sphered outside surface. Two polymer seat rings with a concave sphered inside surface that is encased in a drawn sheet steel sleeve are fitted over the outer ring, enabling the bearing to align itself. Alignment needle roller bearings are therefore insensitive to static misalignment of the shaft relative to the housing.
| SKF/Global | SKF/North America | |
|---|---|---|
| Product Category | Roller Bearings | Roller Bearings |
| Product Number | 146139040 | 146139040 |
| Product Name | Alignment Needle Roller Bearings, without an Inner Ring - RPNA 25/42 | Alignment Needle Roller Bearings, without an Inner Ring - RPNA 25/42 |
| Rolling Element | Steel | Steel |
| Type | Needle Roller Without Inner | Needle Roller Without Inner |
| Design Units | Metric | Metric |
| Bore | 0.9843 inch (25.000 mm) | 0.9843 inch (25.000 mm) |
| Outside Diameter | 1.6535 inch (42.000 mm) | 1.6535 inch (42.000 mm) |
