21307 CC/C3
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.
C3 clearance handles regular heat expansion
Compact design with strong load capacity
Good vibration resistance
Reliable for medium-duty industrial applications
Long-term stable performance
- Dimensions
Bore diameter 35 mm Outside diameter 80 mm Width 21 mm PerformanceBasic dynamic load rating 79.2 kN Basic static load rating 72kN Grease Reference speed 2550 r/min Oil Limiting speed 3600 r/min - Properties
Bore type Cylindrical For Load Direction Radial Number of rows Double row Radial internal clearance C3 Tolerance class for dimensions Nomal Tolerance class for run-out P6 Seal type Without Lubricant None Relubrication feature Without - Weight and Material
Product net weight 0.5339 kg Roller material Chrome steel Ring Material Chrome steel Cage Stamped steel
The JRZC 21307 CC/C3 bearing is compact yet capable of handling heavy radial loads with moderate axial loads. With C3 clearance, it operates smoothly in applications with temperature fluctuations and moderate vibration.
FAQ
Q: Is this model suitable for compact machinery?
A: Yes, its smaller size makes it ideal for limited-space installations.
Q: Can it handle axial loads?
A: It supports light to moderate axial forces.
