Bearings by size

190×400×132 mmbearing

2 standard bearings share the 190×400×132 mm envelope (bore × outside diameter × width). They fit the same shaft and housing bore but are different bearing types.

DesignationTypeLoadsSize
NU2338 / NJ2338 / NUP2338Cylindrical roller bearingHigh radial; NJ/NUP limited axial190 × 400 × 132 mm
22338Spherical roller bearingVery high radial, axial both directions190 × 400 × 132 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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