Selecting the right cylindrical roller bearing involves analyzing load, speeds, lubrication, precision, cage design, and operating environment.
1. Determine Load Type
If purely radial: NU/N. If radial + light axial: NJ/NUP.
2. Precision Grade
High precision (ABEC‑3/5) for tighter tolerances and smoother operation.
3. Lubrication
Oil for high speeds, grease for moderate speeds, quality additives reduce wear.
4. Operating Temperature
High temperatures require special lubricants and clearance adjustments.
5. Cage Material
Polymer/steel cages impact speed limits and heat resistance.