JRZC uses high-purity vacuum-degassed bearing steel as raw material to ensure the quality of CC-type spherical roller bearings from the very beginning. The rings and rollers are treated with Aichelin salt bath heat treatment to guarantee consistent hardness and stable performance. The hardness difference between the bearing rings and rollers is less than 1 HRC, which is 30% stricter than the standard requirement of GB/T 34891-2017.
HA3 cage treatment for enhanced heat resistance.
C4 clearance ideal for thermal expansion.
Tapered bore allows secure mounting.
W33 lubrication groove improves cooling efficiency.
| Bore diameter | 240mm |
| Outside diameter | 400 mm |
| Width | 128 mm |
| Basic dynamic load rating | 2187 kN |
| Basic static load rating | 3200 kN |
| Grease Reference speed | 600 r/min |
| Oil Limiting speed | 800 r/min |
| Bore type | Tapered 1:12 |
| For Load Direction | Radial |
| Number of rows | Double row |
| Radial internal clearance | C4 |
| Tolerance class for dimensions | Nomal |
| Tolerance class for run-out | P6 |
| Seal type | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 62.3 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Stamped steel |
The JRZC 23148 CCK/HA3C4W33 Bearing integrates a high-temp HA3 cage treatment, C4 clearance, tapered bore, and W33 lubrication groove to withstand severe temperatures and heavy continuous loads. Ideal for steel mills, crushers, kilns, and high-stress industrial machinery.
FAQ
Q1: Can this bearing work under extreme heat?
A1: Yes, HA3 treatment significantly improves high-temperature performance.