Technical Specifications

Base Material: GCr15

Base hardness: HRC 58-60

Friction Coefficient: <0.17

Maximum Operating Temperature: 350°C

Ultimate tensile load: 250 N/mm²

Ultimate Load: 70 N/mm² (lm/min)

Maximum sliding speed: 0.1 m/s

Utilize extreme PV value: 2.5 N/mm² * m/s

Application Features: The JDB-250G bearing steel sleeve is a reinforced product with exceptional compressive strength. It creates a diaphragm between the shaft and sleeve when lubricating particles are discharged during the operation of embedded graphite, offering superior anti-galling benefits compared to single oil lubrication. It is particularly suitable for support sections in lifting machinery, such as winch supports and crane supports. However, it is not recommended for use in water or acidic/alkaline environments.