High-efficiency impact crushers are mainly used in secondary and tertiary fine crushing processes, featuring high crushing performance, efficiency, and energy savings. JRZC designs CA-type spherical roller bearings specifically to support these crushers. JRZC uses high-purity vacuum-degassed bearing steel as raw material to ensure bearing quality from the very beginning. The use of Michelin salt bath heat treatment for the rings and rollers contributes to stable quality and performance. The hardness difference between the bearing rings and rollers is less than 1 HRC — a requirement that is 30% stricter than the GB/T 34891-2017 standard.
CAK reinforced brass cage provides superior strength and enhanced shock resistance
C4 internal clearance offers greater tolerance for heat expansion in extreme operating environments
W33 lubrication groove improves lubricant flow, cooling, and overall efficiency
High reliability under continuous heavy loads and severe vibration
Ideal for mining machinery, steel mills, cement plants, and large industrial gearboxes
| Bore diameter | 400 mm |
| Outside diameter | 650 mm |
| Width | 200 mm |
| Basic dynamic load rating | 4864 kN |
| Basic static load rating | 7650 kN |
| Grease Reference speed | 365 r/min |
| Oil Limiting speed | 475 r/min |
| Bore type | Tapered 1:12 |
| For Load Direction | Radial |
| Number of rows | Single 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 | 251 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Machined brass |
The JRZC 23180 CAK/C4W33 spherical roller bearing is engineered for extremely heavy radial loads, harsh operating conditions, and applications requiring superior misalignment tolerance. Featuring a CAK reinforced brass cage and a C4 internal clearance, this model provides enhanced thermal expansion capacity and reliable stability in high-temperature, high-vibration, and variable-load environments. The integrated W33 lubrication groove improves grease distribution, reduces friction, and enhances cooling efficiency. It is widely used in mining equipment, steel production lines, cement machinery, and large industrial drive systems where maximum durability is essential.
Q1: What is the advantage of the CAK cage in this model?
A1: The CAK cage provides reinforced strength and excellent stability, making it suitable for applications with high impact and misalignment.
Q2: Why is the C4 internal clearance necessary?
A2: C4 offers extra clearance to accommodate higher temperatures, speed, and load variations, preventing overheating and premature wear.
Q3: How does the W33 lubrication groove benefit the 23180 CAK/C4W33?
A3: It enhances lubricant flow and heat dissipation, improving operation under heavy loads and extending service life.
Q4: What industries commonly use this bearing?
A4: It is widely applied in mining, steel production, cement processing, and large industrial transmission systems.