FA Series Air Cooling Roller Bearing Tricone Bit
| ADC code | 537 |
| Bit size | 12 1/4" (311mm) |
| Tooth type | TCI Spherical Teeth |
| Thread connections | According to API Spec7-1 standard |
| API REG Pin | 6 5/8 Inch |
| Material | Tungsten carbide insert, inlaid friction-reducing alloy |
| Rotary speed | 100~60 rpm |
| WOB | 0.4~0.8 KN/mm |
| 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 increase gauge holding capability and bearing life |
| Jet Nozzles | Three nozzles |
| Multiple gauge protection | Yes |
| Product Application | It can receive higher WOB and faster rotary speed than conventional roller bearing bits. It is suitable for high RPM applications. |
| Bearing Structure | Air cooling roller bearing package. Balls lock the conem, which reduces the probability of cone-dropping to the minimum. |
| Quality management system | ISO 9001-2008 |
| Formations | It is suitable for medium hard formations with high compressive strength, such as hard shale,limestone,sandstone,dolomite,etc.. |
| Bit weight | 102 KGS |
Established in 1989, Beijing Superior Drilling Equipment Co., Ltd is a comprehensive enterprise with highly specialized expertise in design, R&D and manufacture of tri-cone and PDC drill bits.
Our products are certified by API7-I, ISO 9001:2008, ISO14001:2004 and OHSAS 18001:2007. Our products have been marketed in major Chinese provinces, municipalities and exported to over forty countries and regions in Europe, Asia, Africa and Americas, with good reputation ascribed to our superior quality and competitive price. Equipped with advanced technology, facilities and management, we are manufacturing high performance tri-cone drill bits and PDC bits applied in oil, gas and mining exploitation, complying with highest technical quality standards and API specification.
"Quality First, Customer Foremost" is the permanent principle we are adhering to and we are looking forward to establishing long-term mutual business partnerships with customers around the globe.
| Regular Models of Tricone Bits |
| Regular Sizes | Regular IADC | API Reg Pin | Make-up Torque(N.m) |
| 3 7/8"(98.4mm) | 126/216/517/537/637 | 2 3/8 | 4100~4700 |
| 4 5/8"(117.4mm) | 126/216/517/537/637 | 2 7/8 | 6100~7500 |
| 5 1/2"(139.7mm) | 126/216/517/537/617/637 | 3 1/2 | 9500~12200 |
| 5 5/8"(142.8mm) | 126/216/517/537/617/637 | 3 1/2 | 9500~12200 |
| 5 7/8"(149.2mm) | 126/216/517/537/617/637 | 3 1/2 | 9500~12200 |
| 6"(152.4mm) | 126/127/216/517/537/617/637 | 3 1/2 | 9500~12200 |
| 6 1/4"(158.7mm) | 126/127/216/517/537/617/637 | 3 1/2 | 9500~12200 |
| 6 1/2"(165mm) | 126/127/216/517/537/617/637 | 3 1/2 | 9500~12200 |
| 7 1/2"(190mm) | 126/216/517/537/637 | 4 1/2 | 16300~21700 |
| 7 5/8"(193mm) | 126/216/517/537/637 | 4 1/2 | 16300~21700 |
| 7 7/8"(200mm) | 126/216/517/537/637 | 4 1/2 | 16300~21700 |
| 8 1/2"(215.9mm) | 117/127/217/437/517/537/617/637 | 4 1/2 | 16300~21700 |
| 9 1/2"(241.3mm) | 117/127/217/437/517/537/617/637 | 6 5/8 | 38000~43400 |
| 9 7/8"(250.8mm) | 117/127/217/437/517/537/617/637 | 6 5/8 | 38000~43400 |
| 10 5/8(269.8mm) | 117/127/137/217/517/537/617/637 | 6 5/8 | 38000~43400 |
| 11 5/8(295.3mm) | 117/127/137/217/517/537/617/637 | 6 5/8 | 38000~43400 |
| 12 1/4"(311.1mm) | 114/127/217/437/517/537/617/637 | 6 5/8 | 38000~43400 |
| 13 5/8"(346.0mm) | 127/217/517/537/617/637/737/837 | 6 5/8 | 38000~43400 |
| 14 3/4"(374.6mm) | 127/217/517/537/617/637/737/837 | 7 5/8 | 46100~54200 |
| 17 1/2"(444.5mm) | 114/115/125/215/515/535/537/615/635 | 7 5/8 | 46100~54200 |
| 20''(508.0mm) | 114/115/125/215/515/535/537/615 | 7 5/8 | 46100~54200 |
| 22''(558.8mm) | 114/115/125/215/515/535/537/615 | 7 5/8 | 46100~54200 |
| 24''(609.6mm) | 114/115/125/215/515/535/537/615 | 7 5/8 | 46100~54200 |
| 26"(660.4mm) | 114/115/125/215/515/535/537/615 | 7 5/8 | 46100~54200 |
FAQ
1. Is your company a distributor or a manufacturer?A: Yes,We are a professional Rock Bits manufacturer in China.
2. How about your products?A : 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.
3.what is the Packaging & Delivery? A
:We used high quality export carton or standard export woodern case
4.what is the time about the delivery? A: repared to deliver within 1 week, if in stock.
Depends on order quantity, when out of stock,7-30days
Transportation:By sea or air
5. How to order the products?A: 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.
6.What is the website about your factory? A:Our website is http://superiorbit.en.made-in-china.com
Audited Supplier 
){kind=link}