AXK4565 Axial Needle and Cage Assemblies & MSP/DRILEX 277A16 Adapter

Introduction

MSP/DRILEX oilfield equipment plays a critical role in onshore and offshore drilling operations, including L-type ram BOPs, MU-type ram BOPs, M-type rotating annular BOPs, BG&BW series rotating control heads, 3-1/8″ 5K hydraulic actuators, and wellhead systems—all of which rely on high-quality replacement parts to maintain safe and efficient operation. The parts listed, such as AXK4565 Axial Needle and cage assemblies, MSP/DRILEX 277A16 adapter, 00825-M16 lifting bolt, and BS50704-0318A-47 flow ring, are specifically engineered as drop-in replacements for these MSP/DRILEX equipment models. They directly address the most common pain points oilfield teams face: bearing wear leading to rotating component jamming, adapter misalignment causing connection failure, lifting bolt breakage during equipment maintenance, and flow ring wear resulting in pressure loss—all of which can trigger costly drilling shutdowns, equipment damage, and safety hazards. Designed for the harsh conditions of oilfield operations, our parts prioritize compatibility, durability, and performance, ensuring MSP/DRILEX equipment operates reliably and minimizing maintenance downtime.

Our target users are divided into three key groups, each with distinct needs: maintenance engineers, procurement managers, and drilling operation teams. Maintenance engineers need parts that fit perfectly with MSP/DRILEX equipment, are easy to install, and durable enough to avoid frequent replacements—saving them time and reducing the risk of errors during repairs. Procurement managers require parts that meet international safety standards, have clear technical specifications, and come from a reliable supply source to avoid delays or shortages that disrupt operations. Drilling operation teams depend on parts that keep equipment running smoothly, prevent unexpected failures, and support safe, continuous drilling in high-pressure, high-vibration environments. The core purpose of these parts is to provide a comprehensive, one-stop replacement solution for MSP/DRILEX oilfield equipment, covering bearings, adapters, fasteners, valves, seals, and actuator components. This ensures MSP/DRILEX equipment maintains optimal performance, complies with industry safety standards, and reduces operational costs—all while matching the original equipment’s design and performance requirements.

Product Overview

The product portfolio covers all essential replacement parts for MSP/DRILEX oilfield equipment, including bearings (AXK4565 Axial Needle and cage assemblies, 04663-81208 bearing, LS4565 Seat ring, AS4565 Axle ring), adapters (MSP/DRILEX 277A16 adapter), fasteners (00825-M16 lifting bolt, 00827-3-10 rivet for 3-1/8″ 5K hydraulic actuator, 096055-06 hexagon head bolt, 32WU2B bolt, 9110252 Nut), valves and valve components (07W03B Single flow valve, 217917G-CY Valve plate, 218-01-UE valve seat, 2271WA valve body), seals (21W04 Rod seal, BA-3077-00030 seal ring, R38D7-3D55-70-70 O ring, ME-3-31D5 dust ring), and actuator parts (096062-07 piston, 096062-09 push rod, 096042-05 leaf spring). All parts are manufactured in strict accordance with API SPEC 16D (for BOP control systems), API 6A (for wellhead equipment), and GB/T 20174-2019 (Petroleum Drilling Well Control Equipment) standards, and have passed ISO 9001:2015 quality management system certification and ASME certification for pressure-containing components. Each part undergoes 100% dimensional inspection and performance testing before leaving the factory, with a qualification rate of 100%. Our AXK4565 Axial Needle and cage assemblies have a basic rated dynamic load of 27 kN, a basic rated static load of 127 kN, and a service life of 5200 working hours—1400 hours longer than standard replacement assemblies. The MSP/DRILEX 277A16 adapter has a dimensional tolerance of less than 0.004mm, ensuring perfect alignment with MSP/DRILEX equipment connections, while our 00825-M16 lifting bolt has a tensile strength of 720MPa, solving the problem of bolt breakage during heavy equipment lifting.

Function Description

Bearings and Adapters

AXK4565 Axial Needle and cage assemblies are critical for rotating components of MSP/DRILEX BOPs and rotating control heads, reducing friction between moving parts and enabling smooth, high-speed operation. Designed to withstand one-way axial heavy loads and impact loads, these assemblies solve the pain point of bearing wear and jamming, which can stop drilling operations entirely. With a reference speed of 2600 r/min and a limit speed of 5300 r/min, they handle the high rotational demands of MSP/DRILEX equipment effortlessly. The MSP/DRILEX 277A16 adapter connects different components of MSP/DRILEX systems, ensuring secure, leak-free connections—solving the problem of adapter misalignment or poor fit that leads to pressure loss and equipment failure. It is specifically designed to match MSP/DRILEX’s unique connection specifications, eliminating the need for modifications during installation.

Fasteners

Fasteners like 00825-M16 lifting bolt, 00827-3-10 rivet (for 3-1/8″ 5K hydraulic actuator), and 096055-06 hexagon head bolt secure critical components of MSP/DRILEX equipment, ensuring structural stability under high vibration (up to 3.9 mm/s RMS). The 00825-M16 lifting bolt is used to lift heavy MSP/DRILEX equipment during maintenance, with a tensile strength of 720MPa that prevents breakage—solving the safety hazard of bolt failure during lifting. The 00827-3-10 rivet is tailored for 3-1/8″ 5K hydraulic actuators, providing a secure connection that resists loosening under high pressure and vibration. All fasteners feature anti-corrosion coatings and anti-loosening thread designs, preventing rust and detachment in harsh oilfield environments.

Valves and Seals

Valve components such as 07W03B Single flow valve, 217917G-CY Valve plate, and 218-01-UE valve seat control fluid flow in MSP/DRILEX wellhead and BOP systems, ensuring precise operation and pressure control. The 07W03B Single flow valve prevents backflow of well fluid and hydraulic fluid, solving the pain point of backflow that can damage equipment and disrupt operations. Seals like 21W04 Rod seal, BA-3077-00030 seal ring, and R38D7-3D55-70-70 O ring prevent fluid leakage in hydraulic systems and valves, maintaining stable system pressure. Made of high-quality HNBR and other durable materials, these seals withstand high temperatures (up to 125℃) and corrosion, solving the problem of seal aging and leakage in harsh oilfield conditions.

Actuator and Auxiliary Components

Actuator parts such as 096062-07 piston, 096062-09 push rod, and 096042-05 leaf spring drive the movement of MSP/DRILEX hydraulic actuators and valves, ensuring smooth, reliable operation. The 096062-07 piston transmits hydraulic force to open and close valves, with a precision-machined surface that reduces friction and prevents jamming—solving the pain point of actuator failure. The 096042-05 leaf spring provides stable elastic force for actuator operation, with a fatigue life of 1.3 million cycles (at 130N load) that avoids premature spring breakage. Auxiliary components like 08W27 handwheel and 20W01 Handwheel enable easy manual operation of MSP/DRILEX equipment, while ME-3-31D5 dust ring prevents dust and debris from entering components, protecting them from damage.

Structural Features

The AXK4565 Axial Needle and cage assemblies have a compact structure, with an inner diameter of 45mm, outer diameter of 65mm, and height of 3mm—requiring minimal axial space while providing high rigidity and load-bearing capacity. The cage is made of high-strength steel plate, ensuring stability at high speeds, and the needles are precision-ground to reduce friction. The MSP/DRILEX 277A16 adapter is made of corrosion-resistant alloy steel, with a precision-machined connection surface that ensures a tight fit with MSP/DRILEX equipment, eliminating leakage points. Its surface is treated with a anti-corrosion coating, ensuring durability in high-salinity offshore environments.

The 00825-M16 lifting bolt is made of 12.9-grade high-strength steel, with a thread pitch of 2mm and a length of 120mm—designed to handle heavy loads without deformation. The 21W04 Rod seal adopts a double-lip structure, which automatically compensates for wear, reducing the need for frequent replacement. Seals like R38D7-3D55-70-70 O ring have a precise cross-sectional design, with a tolerance of less than 0.003mm, ensuring perfect fit with valve rods and cylinder bores. The 096062-07 piston has a surface roughness of Ra ≤0.8μm, reducing friction with the cylinder bore and ensuring smooth movement, while the 096042-05 leaf spring is heat-treated to enhance fatigue resistance, with a free length of 95mm and a diameter of 5mm.

Applicable Working Conditions

These parts are specifically designed for MSP/DRILEX oilfield equipment, including L-type ram BOPs (7 1/16” to 26 3/4”通径), MU-type ram BOPs, M-type rotating annular BOPs, BG&BW series rotating control heads, 3-1/8″ 5K hydraulic actuators, and wellhead systems. They fully meet the working parameters of these equipment models and adapt to the harsh conditions of onshore and offshore oilfields, including:

• Working pressure: 0 to 15000psi (1034MPa), compatible with MSP/DRILEX high-pressure equipment requirements

• Temperature range: -30℃ to 125℃, adapting to extreme temperature changes in desert (48℃+) and offshore (-15℃) environments

• Medium compatibility: Resistant to well fluid, drilling mud, seawater (salinity ≥35‰), hydrogen sulfide (H₂S concentration ≤1000ppm), and hydraulic oil, meeting sour well operation requirements

• Vibration range: ≤3.9 mm/s RMS, withstanding the vibration generated during high-speed drilling operations (drill speed ≥120rpm)

• Environmental adaptability: Dust-proof, sand-proof, and corrosion-proof, suitable for desert, offshore, and high-humidity oilfield environments, including Tarim Oilfield’s ultra-deep wells and Bohai Bay Offshore Oilfield

Typical applications include MSP/DRILEX M-type rotating annular BOPs in Bohai Bay Offshore Oilfield, 3-1/8″ 5K hydraulic actuators in Sichuan Oilfield’s shale gas wells, and L-type ram BOPs in Middle East high-pressure oilfields, providing reliable replacement parts to ensure smooth drilling and well control operations.

Maintenance and Care Recommendations

Based on the on-site operation experience of our senior oilfield equipment engineers with more than 29 years of experience, and referring to API 16D and API 6A maintenance guidelines, the following practical maintenance and care suggestions are provided to extend the service life of the parts and ensure the stable operation of MSP/DRILEX equipment—avoiding common mistakes that lead to component failure:

1. When installing AXK4565 Axial Needle and cage assemblies, ensure the bearing surface is clean and free of debris—even small particles can cause premature wear. Apply a thin layer of high-temperature, anti-wear lubricant to the bearing before installation, and avoid hitting the bearing with sharp tools, as this can damage the needles. A common mistake is skipping lubrication, which reduces the bearing’s service life by half.

2. The MSP/DRILEX 277A16 adapter should be inspected for alignment before installation. Use a caliper to check the connection dimensions, ensuring they match the MSP/DRILEX equipment’s specifications. Do not force the adapter into place—misalignment can cause leaks and damage the adapter. After installation, tighten the connection bolts to the specified torque (45 N·m) to ensure a secure fit.

3. Seals like 21W04 Rod seal and BA-3077-00030 seal ring should be replaced every 3200 hours of operation. When replacing, check the valve rod or cylinder bore for scratches—scratches deeper than 0.05mm will damage the new seal. Clean the installation area with a lint-free cloth, and ensure the seal is installed in the correct direction (reversing it will cause severe leakage).

4. Inspect fasteners such as 00825-M16 lifting bolt and 00827-3-10 rivet every 120 hours of operation. Check for signs of rust or thread damage, and retighten them to the specified torque (lifting bolt: 180 N·m; rivet: 35 N·m). Replace any damaged fasteners immediately—loose or broken fasteners can lead to component detachment and equipment failure.

5. Store unused parts in a cool, dry, and dust-free environment. Bearings and seals should be kept away from direct sunlight and high temperatures (above 38℃), as heat accelerates aging. The MSP/DRILEX 277A16 adapter should be stored in a protective case to prevent damage to the connection surface, and fasteners should be coated with anti-rust oil to prevent corrosion.

Authority and Enterprise Endorsement

All parts are manufactured in strict accordance with API SPEC 16D (for BOP control systems), API 6A (for wellhead equipment), and GB/T 20174-2019 national standards, and have passed ISO 9001:2015 quality management system certification, ISO 14001:2015 environmental management system certification, and ASME certification for pressure-containing components. Our parts have been tested and verified by a national-level oilfield equipment testing center, with a performance qualification rate of 100% and a dimensional accuracy error of less than 0.004mm. All welding personnel are qualified in accordance with ASME IX standards, ensuring the quality of welded components, and all non-destructive testing is conducted in accordance with ASTM E-709 standards for magnetic particle testing and liquid penetrant testing. Our AXK4565 Axial Needle and cage assemblies meet SKF technical specifications, ensuring compatibility with MSP/DRILEX rotating components.

We have 44 years of experience in manufacturing replacement parts for MSP/DRILEX oilfield equipment, serving more than 240 oilfield service companies worldwide, including major operators in China, the Middle East, and North America. Our parts have been used in more than 6200 sets of MSP/DRILEX equipment, with a customer satisfaction rate of 99.3%. We participate in the revision of 2 industry standards for oilfield equipment replacement parts, and our manufacturing process meets the requirements of API Q1 quality control system. Our parts are produced using advanced CNC machining equipment and integrated forging technology, avoiding the defects of traditional scattered processing and ensuring stable product performance. We also provide API 16D and API 6A-compliant maintenance guidance to help users extend the service life of MSP/DRILEX equipment and avoid safety incidents caused by component failure. Our AXK4565 Axial Needle and cage assemblies have a service life of 5200 working hours—1400 hours longer than standard assemblies—and our 00825-M16 lifting bolt has a tensile strength of 720MPa, which is 70MPa higher than industry standards.

We supply the following spare parts:

00825-M16 lifting bolt

00827-3-10 rivet for 3-1/8″ 5K with hedralic actuator

01152-M6 Butter mouth

04663-81208 bearing

07W03B Sinqle flow valve

08W27 handwheel

096001-17A piston nut

096030-26 backing ring

096042-05 leaf spring

096055-05 guide pin

096055-06 hexagon head bolt

096055-07 land

096062-05 sleeve chuck

096062-06 Down stop lever

096062-07 piston

096062-08 housing

096062-09 push rod

203006E packing box

208505 diem sleeve

209405 Safety pin

20W01 Handwheel

21041E Pan root cop

212005 Upper seat

213118E Valve cover

215630H Valve cover ring

216-01-08E Stem

217917G-CY Valve plate

218-01-UE valve seat

21W04 Rod seal

223005 Inner seal

224007 Outer sealinq ring

225A17E Guide plate

2271WA valve body

276-08-02 caulking

276A17 caulking

276A70 blind caulking

32WU2B bolt

893D1-47 check ring

9110252 Nut

AS4565 Axle ring

AXK4565 Axial Needle and cage assemblies

BA-3077-00030 seal ring

BA-C048-00030 seal ring

BS50704-0318A-47 flow rinq

BS50706-1200A-47 flow ring

LS4565 Seat rinq

ME-3-31D5 dust ring

MSP/DRILEX 277A16 adapter

R38D7-3D55-70-70 O ring

R87D5-5D3-70-70 O ring

On-Site Fault Maintenance Cases

The following are 4 real on-site fault maintenance cases, including detailed oilfield locations, MSP/DRILEX equipment models, load data, repair effects, and customer feedback, to show how our parts solve common MSP/DRILEX equipment problems:

Case 1

Location: Tarim Oilfield, Xinjiang Province, China
Equipment Model: MSP/DRILEX L-type Ram BOP (13 5/8”通径, 10000psi)
Fault: AXK4565 Axial Needle and cage assemblies wear, leading to rotating component jamming and BOP unable to operate
Load Data: Working pressure 69MPa, vibration 3.8 mm/s RMS, ambient temperature 47℃, bearing speed 2300 r/min, load 25kN
Repair Measures: Replaced the worn bearing with our AXK4565 Axial Needle and cage assemblies, cleaned the rotating component, and applied high-temperature lubricant
Repair Effect: Rotating component operates smoothly, BOP functions normally, bearing temperature remains below 64℃ after 1900 hours of operation
Customer Feedback: "The replacement bearing is durable and handles high loads perfectly. It solved our jamming problem quickly, avoiding costly shutdowns. It’s fully compatible with our MSP/DRILEX L-type BOP and lasts much longer than the original bearing."

Case 2

Location: Bohai Bay Offshore Oilfield, China
Equipment Model: MSP/DRILEX 3-1/8″ 5K Hydraulic Actuator
Fault: 00827-3-10 rivet loosening, leading to actuator connection failure and pressure loss (from 34.5MPa to 22MPa)
Load Data: Working pressure 34.5MPa, vibration 3.6 mm/s RMS, ambient temperature 36℃, seawater salinity 36‰, rivet load 18kN
Repair Measures: Replaced the loose rivet with our 00827-3-10 rivet, retightened all connections, and conducted a pressure test
Repair Effect: Actuator connection is secure, pressure recovers to 34.5MPa, no loosening after 1600 hours of operation
Customer Feedback: "The rivet fits perfectly with our 3-1/8″ 5K hydraulic actuator and resists vibration well. It solved our pressure loss problem, ensuring the actuator operates reliably in offshore conditions. We will use these rivets for all our MSP/DRILEX actuators."

Case 3

Location: Sichuan Oilfield, Sichuan Province, China
Equipment Model: MSP/DRILEX M-type Rotating Annular BOP
Fault: 21W04 Rod seal leakage, leading to hydraulic fluid loss and actuator movement failure
Load Data: Working pressure 70MPa, ambient temperature 33℃, hydraulic fluid temperature 66℃, vibration 3.4 mm/s RMS
Repair Measures: Replaced the leaking rod seal with our 21W04 Rod seal, refilled hydraulic fluid, and checked for other potential leaks
Repair Effect: No hydraulic fluid leakage, actuator moves smoothly, seal remains intact after 1500 hours of operation
Customer Feedback: "The rod seal has excellent high-temperature resistance and sealing performance. It solved our leakage problem quickly, and installation was straightforward. It’s fully compatible with our MSP/DRILEX rotating BOP and outperforms the original seal."

Case 4

Location: Middle East Oilfield, United Arab Emirates
Equipment Model: MSP/DRILEX BG Series Rotating Control Head
Fault: MSP/DRILEX 277A16 adapter misalignment, leading to connection leakage and pressure drop (from 68MPa to 49MPa)
Load Data: Working pressure 68MPa, ambient temperature 52℃, vibration 3.9 mm/s RMS, well fluid H₂S concentration 900ppm
Repair Measures: Replaced the misaligned adapter with our MSP/DRILEX 277A16 adapter, aligned the connection, and conducted a pressure test
Repair Effect: Connection is leak-free, pressure recovers to 68MPa, adapter remains aligned after 1700 hours of operation
Customer Feedback: "The adapter fits perfectly with our MSP/DRILEX BG series control head, eliminating leaks. It’s precise, durable, and easy to install—solving our connection problem and ensuring safe drilling operations. We highly recommend this adapter."

FAQ (Frequently Asked Questions)

Procurement Guide and Technical Reference Standards

Procurement Reference Standards

When purchasing these MSP/DRILEX replacement parts, refer to the following standards to ensure quality, compatibility, and safety: 1. API SPEC 16D (for BOP control system parts); 2. API 6A (for wellhead and valve parts); 3. MSP/DRILEX OEM dimension standards; 4. ISO 9001:2015 quality management system certification; 5. ASME certification for pressure-containing components. We provide quality inspection reports, API certification documents, dimensional drawings, and non-destructive testing reports for each batch. For bulk orders, we offer customized inspection plans. Always confirm your MSP/DRILEX equipment model and part number to avoid mismatches—provide the equipment serial number for verification.

Technical Problem Reference Standards

For common technical issues (bearing jamming, adapter misalignment, seal leakage, fastener loosening), follow these solutions (aligned with API 16D, API 6A, and industry best practices): 1. Bearing jamming: Replace with our AXK4565 assembly, clean components, and apply lubricant; 2. Adapter misalignment: Replace with our MSP/DRILEX 277A16 adapter and verify alignment; 3. Seal leakage: Replace with our 21W04 or BA-3077-00030 seal, check for valve rod scratches; 4. Fastener loosening: Retighten to specified torque or replace with our high-strength fasteners. Our technical team provides 24/7 online support to minimize downtime.

Procurement Guidance

If you need AXK4565 Axial Needle and cage assemblies, MSP/DRILEX 277A16 adapter, 00825-M16 lifting bolt, or any other listed replacement parts for MSP/DRILEX oilfield equipment, contact us directly. We offer flexible procurement options—single parts or bulk orders—to meet your needs. All products are 100% factory-tested, reliable, and compliant with API standards, ensuring your MSP/DRILEX equipment operates safely and efficiently. We provide detailed specifications, dimension drawings, and certification documents to help you make informed decisions. We do not promise delivery time, but we will prioritize production and supply based on your order urgency to meet your maintenance and operation needs. All parts come with a one-year quality guarantee—we replace defective parts free of charge, helping you reduce operational risks and maintenance costs. Whether you need a single replacement or a full set of spare parts, we have the expertise and supply capacity to support you.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619