API TCI Rubber/Metal Sealing Rock Bit for Well Drilling

ISO 9001 Drilling Bits Oil Well 1. High Durability. 2.Metal-sealed Bearing. 3. Gauge Protection

The AIM of Hejian Yinhai Rock Bits Co. LTD:

FOCUS AND DEDICATION TO BRING THE VALUE. QUALITY IS LIFE.

HeJian  Yinhai Rock Bits Co. LTD supply all kinds of  bits with high quality and reasonable price.We also import all kinds of tricone bits,so we can provide large quantities of old and new bits. If you have interested in our products , please don’t hesitate to contact me . Our purpose is to sell the best quality products at competitive price,and we will do our best to build a long-term business and friendship with our clients.

Our products have been approved by ISO 9001 Quality Management System as CNAS of China and UKAS of UK.

 1. Main Features

1). Cutting Structure

The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.

 

2). Gauge Structure

Multiple gauge protection with gauge trimmers on 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.

 

3). Bearing Structure

High precision bearing with two thrust faces. Balls lock the cone.Hardface heard 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.

 

4). Seal and Lubrication

The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal 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.

 

2. Available sizes:

60mm,65mm,76mm,93mm,95mm,98mm(37/8”),101.6mm,114mm,118mm,120mm,127mm(5”) 130.1mm(5 1/8”),133.3mm(5 1/4”),139.7mm(5 1/2”),142.8mm(5 5/8”),149.2mm(5 7/8”) 152.4mm(6”),155.5mm(6 1/8”),158.7mm(6 1/4”),161.9mm(6 3/8”),165.1mm(6 1/2”) 190.5mm(7 1/2”),193.6mm(7 5/8”),200.0mm(7 7/8”) 212.7mm(8 3/8”),215.9mm(8 1/2”),222.2mm8 3/4”)                                                                                                          241.3(9 1/2”),244.4(9 5/8”),250.8(9 7/8”) 269.8(10 5/8”),295.3(11 5/8”) 311.1(12 1/4”),346.0 (13 5/8”),349.2(13 3/4”) 374.6(14 3/4”) 381(15”),393.7(15 1/2”),406.4(16”) 444.5(17 1/2”),508(20”),558(22”)

productive process