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位置:
Beijing, China
最小订单价格:
-
最小订单:
1 Acre
包装细节:
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交货时间:
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供应能力:
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付款方式:
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联系人 Ms. Kathy
No.B2-0645 Century Tea Trade Center. Maliandao Road, Xuanwu, Beijing
Milled tooth,sealed roller bearings. jet circulation rock bits. Designed and manufactured for application with high pressure jet circulation.With reasonable and reliable structure. adapted to medium hard formations drilling.
Main structure features
1.journal bearing. hardfaced head bearing surface.the load capacity and seizure resistance of the bearing is greatly improved.
2.o-ring seal is made of the more wear resistance high saturated buna-N with the section and precissely designed sealing flange in the cone sealing area increased the reliability of the seal.
3.the bit bearing is ball which can be applied to high rotary speed drilling.
4.all rubber compensator is used which can provides the bearing system with good assurance of lubrication.
5. new type of grease that can sustain high temperature up to **0C is utilized.
size: from **7/8"(**9.2mm)******1/2"(**4.5mm)
type:**7,**7,**7,**7,**7,**7...........
mark:sizes and types that are not shown in above,and can be customized according to specific drilling requirements
