Base material: HT-250
Base Hardness: HB180-230
Friction coefficient: <0.18
Temperature limit : 400 ℃
Dynamic load limit: 60N/mm2
lLoad limit under lm/min: 15N/mm2
Speed limit: 0.5m/s
PV limit: 0.8N/mm2. m/s


JDB-4 is based on cast iron Ht250 and embedded with solid lubricant. Very good performance when under low load. Not suitable for middle and high load.
A typical cost saving material, can substitute JDB-2 to be applied in the position without high requirements such as die guider, plastic injection machines etc.