Bearings by size

180×380×126 mmbearing

2 standard bearings share the 180×380×126 mm envelope (bore × outside diameter × width). They fit the same shaft and housing bore but are different bearing types.

DesignationTypeLoadsSize
NU2336 / NJ2336 / NUP2336Cylindrical roller bearingHigh radial; NJ/NUP limited axial180 × 380 × 126 mm
22336Spherical roller bearingVery high radial, axial both directions180 × 380 × 126 mm

Same size is not the same bearing. These types carry loads in different directions, have different speed limits and may need different fits, preload or lubrication. Swapping one for another needs an engineering check, not just a matching size.

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