| Inner Diameter | 20 mm |
| Outer Diameter | 52 mm |
| Width | 15 mm |
Cylindrical roller bearing NJ304EM made of bearing steel/chrome steel/ceramic/nylon. Non-aligning, radial load type, single/double/four rows option. Precision grades P0–P2, with iron/brass/nylon cage. Lubrication: oil, grease or dry. Standard compliant (DIN/ISO/JIS/GB). Origin: China. HS Code: 8482500090.