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21306 CC
21306 CC
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.
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- Dimensions
Bore diameter 30 mm Outside diameter 72 mm Width 19 mm PerformanceBasic dynamic load rating 65.7 kN Basic static load rating 61kN Grease Reference speed 2850 r/min Oil Limiting speed 3900 r/min - Properties
Bore type Cylindrical For Load Direction Radial Number of rows Double row Radial internal clearance CN 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 0.409 kg Roller material Chrome steel Ring Material Chrome steel Cage Stamped steel
