metal sealed bearing 8 1/2in tricone drill bit Quality Choice

Cutting structure

The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.

Gauge structure

Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone ,tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.

Bearing structure

High precision journal bearing with two thrust faces.Balls lock the cone.Hardraced head bearing surface.Cone bearing inlaid with friction-reducing alloy and then silver-plated.Abrasion resistance and seizure resistance of the bearing are improved,and suitable for high rotary speed.

Seal and lubrication

The advanced metal seal package consists of two metal seals and two elastic energizers.Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force,and achieves the bearing seal.In the drilling,metal seals are relatively dynamic,and the energizers are static.This will improve the reliability and durability of bearing seal .The pressure compensator system and advanced grease can greatly increase the lubricating reliability.

Product application

It is suitable for downhole motor and high speed application.

 our desigan:

• Hejian Hengji Bit Manufacture Co.,Ltd is located in hejian, hebei province. It is emerging enterprises in Chinese bit industry. It is mainly engaged in the development,production and sales of all kinds of bits. As a leading manufacturer of tricone bit and PDC bits, our products are made strictly complying with API specifications and ISO9001.
• We have developed and mass-produced products 3 to 26 inches series steel tooth bits and tricone bits, various types of PDC bits, core bits and production and processing assembly 0.6m to 3 m large diameter drill bits.We ship to more than 30 countries and serve industries such as oil &gas, water well, construction, mining, horizontal directional drilling(HDD) ,geothermal and environmental. Our experienced staff is here to assist you with everyting from choosing the right bit to shipping around the globe.
• Our goal is provide our customers with the best quality tools, accessories and service in the industry. We are supported by many years of experience, trained professionals and a full machine shop. Reduce the cost, speed the drilling, guarantee the safety is always our aim.

 1. How to order the products?
Answer:
Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.  http://hengjibit.en.china.cn/

2. About delivery time?
Answer :
The delivery time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.

3.Can I expect a quality products?
Answer :
Yes. All our activities are accredited to ISO 9001:2008 , both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.

4.Trade Terms:

 payment:T/T. 30%deposits,70% before delivering.

If you have any questions ,pl tell me ,it is my pleasure to reply you.