Top Drive DQ70BSC Bearing 4301000490, ZJ45 Pipeline Y/G10II-500, Q11F-16P Ball Valve

Introduction: Precision-Matched Components for Drilling Rigs, Top Drives & Industrial Systems

We specialize in manufacturing and supplying high-performance mechanical, hydraulic, electrical, and drilling parts that are fully compatible with a wide range of oilfield drilling rigs, top drives, industrial boilers, and auxiliary equipment. Our product portfolio is tailored to fit ZJ40, ZJ45, ZJ50D, ZJ50L drilling rigs, Top Drive DQ70BSC, WNS2-1.25-5Y boilers, GE-MWD inclinometers, NOV equipment, and various hydraulic, transmission, electrical, and drilling systems. From top drive bearings and drilling rig chains to high-pressure control valves, gearbox assemblies, and boiler contactors, every part is engineered to meet the rigorous operational demands of oilfield drilling, well control, industrial production, and heavy machinery maintenance.

Our target users include oilfield drilling companies, top drive operators, well logging service providers, industrial boiler maintenance teams, and heavy machinery repair workshops. We deeply understand your core needs: parts that fit seamlessly without modification, durable performance that minimizes unplanned downtime, cost-effective solutions that reduce long-term maintenance budgets, and reliable supply for both routine replacements and emergency repairs. Whether you need a single valve seal (6N7174) or a complete gearbox assembly (G04020000002AA), we deliver one-stop supply solutions that balance OEM-level quality, perfect compatibility, and competitive pricing—helping you keep your equipment running efficiently, safely, and continuously.

Core Purpose: Solve Maintenance Pain Points & Ensure Equipment Reliability

The mechanical parts we supply are critical to the safety, performance, and longevity of your drilling rigs, top drives, boilers, and industrial systems. Our core mission is to address the most frustrating challenges you face in daily operations: mismatched parts causing costly installation delays, low-quality components leading to frequent breakdowns, exorbitant OEM part costs, and difficulty sourcing hard-to-find specialized components (such as Top Drive DQ70BSC bearings and ZJ45 turntable sprockets). By providing ISO/GB/API-compliant, high-compatibility parts—such as the Top Drive DQ70BSC Bearing 4301000490, ZJ45 Y/G10II-500 Pipeline, Q11F-16P Ball Valve DN40 PN16MPa, and ZJ50L Brake Device Closed Caliper Bearing BQ-33—we help you cut unplanned downtime, reduce maintenance costs, and ensure your equipment operates stably in long-term, high-intensity, high-pressure (up to 105MPa), and corrosive working environments. Our parts are designed to not just replace old components, but to enhance equipment performance and extend service life.

Product Introduction

Our product range covers 8 major categories, all manufactured in strict compliance with international industry standards (ISO 9001, API 7-1, GB/T) to guarantee compatibility, durability, and performance. Key products include:

• Drilling Rig Core Components: Winch Brake Operating Mechanism ZJ50D28, Disc Brake Buffer Cylinder Hose A10I-M16*1.5 16 8m, Turntable Intermediate Shaft Power Input Sprocket ZJ45, Pulley ZJ45 Ф1120, Bridge Shaft Assembly ZJ40 02.07.00, Brake Device ZJ50L Closed Caliper Bearing BQ-33, Water-Cooled Brakes 5402650011, Emergency Brake Valve ZJ-45 PSZ75 K23.

• Top Drive Parts: BEARING FOR TOP DRIVE DQ70BSC (Part Number: 4301000490), IBOP Scroll Wheel DQ70 1.10.05.001.

• Valves & Hydraulic Components: Ball Valve DN40 PN16MPa Q11F-16P, Two Position Three Way Valve VSP-3301-31, High Pressure Control Valve Hydraulic Plate Valve PFFY103 105MPa, High Pressure Control Valve Mud Gate Valve Z23Y DN100 70Mpa, Foot Control Two-Position Three-Way Valve P054695-0002, IA191-(P-059331-0000) Two-Position Three-Way Valve, Valve Lifter 2646156, Valve Seal 6N7174, Valve Plate Body F751.14.04.04.01, Valve Stem 1161577.

• Transmission & Pumps: Gearbox Assembly G04020000002AA, Constant Pressure Variable Pump PHP1050R2, Pump Head Body P8200054AA, Crankshaft W XW7Z-6D309-AA, Hydraulic Cylinder LB010543-00.

• Sealing & Fastening Parts: Gasket EK140104-110209B1, Stuffing Box AH1301010404, Tile Bolts 9W4480, Bolt 420101121120006500, Screw 4400200456, SpacerI AA4501230903, Bushing BKD-3-6D4, Clamping Plate RS17.110.00 for Hydraulic Tong ZQ 162/50, Blocking Board BK-6-7A, CLTUCH RING GEAR (JC21A-01-02), Brake Disc PSZ6-XJ S–04-00D.

• Filters & Drilling Tools: Air Filter 6I2508, Marsh Funnel Viscometer MLN-3, Rig Chain 4 T25.4mm RS80V-4, Rig Chain 2 T38.1mm RS120V-2, Ceramic Cylinder Liner Y001-100150, Pinch Tube 308204-04, Y/G10II-500 Pipeline.

• Electrical & Instrumentation Parts: Varistor MOV-750VRMS 0000-6818-06, Metal Film Resistors RJ14 16KΩ 0.25W, Boiler WNS2-1.25-5Y Contactor CJX2-1810 220V, Proximity Switch 361804120650000000, Proximity Sensor NOV 10462725-001, Weight Indicator ZJ Sensor JZ500, Inclinometer GE-MWD Pressure Sensing Line 204024a, Intake Valve 115-2368, Steel Sheet 23047771.

• Bearings: Bearing 6218, BEARING FOR TOP DRIVE DQ70BSC (4301000490), Brake Device ZJ50L Closed Caliper Bearing BQ-33.

Function Description

Each product is designed to perform specific critical functions, ensuring the smooth, safe, and efficient operation of your equipment. Here’s how our key parts work:

• Top Drive DQ70BSC Bearing 4301000490: Serves as a core rotating component for DQ70BSC top drives, reducing friction between moving parts, supporting heavy loads, and ensuring smooth rotation of the top drive during drilling operations.

• ZJ45 Y/G10II-500 Pipeline: Transports fluids (mud, oil, or gas) in ZJ45 drilling rig systems, ensuring stable and leak-proof fluid transmission, which is critical for well control and drilling efficiency.

• Q11F-16P Ball Valve DN40 PN16MPa: Controls the flow of fluids in industrial and drilling systems, with a compact design and tight sealing performance, suitable for medium-pressure (16MPa) applications.

• High Pressure Control Valve Hydraulic Plate Valve PFFY103 105MPa: Regulates the flow and pressure of hydraulic fluid in high-pressure (105MPa) drilling rig hydraulic systems, ensuring precise control of hydraulic components such as winches and drawworks.

• Gearbox Assembly G04020000002AA: Transmits power from the engine to drilling rig components, providing stable speed regulation and reliable power output for efficient drilling operations.

• Marsh Funnel Viscometer MLN-3: Measures the viscosity of drilling mud, helping operators adjust mud consistency to maintain wellbore stability and drilling efficiency.

Structural Features

Our products adopt advanced structural design and high-quality materials to withstand harsh working conditions, ensuring long service life and reliable performance. Key structural features include:

• Top Drive DQ70BSC Bearing 4301000490: Made of high-strength alloy steel with a wear-resistant and corrosion-resistant coating, precision-machined to tight tolerances; designed to withstand high loads and high vibration, ensuring long service life in DQ70BSC top drives.

• ZJ45 Y/G10II-500 Pipeline: Manufactured from high-pressure resistant carbon steel, with a thick-walled design and precision-machined joints; anti-corrosion coating ensures durability in harsh oilfield environments, compatible with ZJ45 drilling rigs.

• Q11F-16P Ball Valve DN40 PN16MPa: Stainless steel body and ball for corrosion resistance, precision-machined sealing surface for tight leak-proof performance; easy-to-operate handle, suitable for medium-pressure industrial and drilling applications.

• High Pressure Control Valve Hydraulic Plate Valve PFFY103 105MPa: Robust steel body with a high-pressure resistant design (105MPa), precision-machined valve core for accurate flow and pressure control; designed to withstand harsh hydraulic system conditions.

• Gearbox Assembly G04020000002AA: High-strength gears and bearings for smooth transmission and high load-bearing capacity; sealed design prevents oil leakage and dust entry, ensuring stable operation in high-intensity drilling environments.

Applicable Working Conditions

Our products are widely used in various harsh and complex working environments, perfectly adapting to the needs of drilling, top drive operation, and industrial production:

• Oilfield Drilling Sites: Suitable for ZJ40, ZJ45, ZJ50D, ZJ50L drilling rigs, Top Drive DQ70BSC, and GE-MWD inclinometers; withstanding high temperature (up to 180℃), high pressure (up to 105MPa), dusty, corrosive, and high-vibration environments.

• Industrial Boiler Systems: Applicable to WNS2-1.25-5Y boilers; adapting to high-temperature, high-pressure, and high-humidity environments, ensuring stable boiler operation with reliable contactors and valves.

• Hydraulic & Pneumatic Systems: Used in drilling rig hydraulic systems, constant pressure variable pumps, and high-pressure control valves; adapting to high-pressure and high-vibration environments, ensuring reliable fluid transmission and control.

• Well Logging & Mud Testing: Used in GE-MWD inclinometers and Marsh Funnel Viscometer MLN-3; suitable for outdoor and complex geological environments, with resistance to harsh well conditions and mud contamination.

Maintenance & Care Suggestions

Proper maintenance is key to extending the service life of mechanical parts and reducing replacement costs. Here are practical, easy-to-follow suggestions tailored to our products:

• Regular Inspection: Check Top Drive DQ70BSC bearings (4301000490), ZJ45 pipelines (Y/G10II-500), and high-pressure control valves (PFFY103) every 70 operating hours; replace worn or damaged parts (such as valve seals 6N7174 and air filters 6I2508) in time to avoid leaks or system failure.

• Cleaning & Lubrication: Keep gearbox assemblies (G04020000002AA), bearings (6218), and turntable sprockets (ZJ45) clean; apply appropriate lubricating oil (matching the equipment manual) to reduce friction and prevent rust and wear.

• Storage Requirements: Store parts in a dry, ventilated, and dust-free warehouse; avoid direct sunlight and contact with corrosive substances (especially electrical components, seals, and filters). For high-pressure valves and top drive parts, store them in a cool, moisture-free environment to maintain their performance.

• Installation Notes: Ensure parts are installed correctly according to the equipment manual; avoid forced installation (e.g., aligning bolts 420101121120006500 properly to prevent thread damage). For top drive parts and drilling rig components, follow OEM installation guidelines to ensure compatibility and safety.

• Filter & Valve Maintenance: Regularly replace air filters (6I2508) and clean hydraulic valves; check boiler contactors (CJX2-1810) regularly to ensure safe boiler operation; calibrate weight indicators (JZ500) and viscometers (MLN-3) to maintain measurement accuracy.

We supply the following spare parts:

On-Site Fault Maintenance Cases

Here are 3 real on-site maintenance cases, showing how our parts solve practical problems for customers, reduce downtime, and improve equipment performance:

Case 1: Top Drive Bearing Failure in DQ70BSC System

A customer’s DQ70BSC top drive experienced increased vibration and noise due to a worn bearing, leading to reduced top drive efficiency and risking component damage. We supplied the Top Drive DQ70BSC Bearing 4301000490, which is fully compatible with the DQ70BSC top drive. After replacement, the vibration and noise were eliminated, and the top drive operated stably for 700 hours, reducing downtime by 80%.

Case 2: Hydraulic Valve Malfunction in ZJ45 Drilling Rig

An oilfield’s ZJ45 drilling rig had unstable hydraulic pressure due to a faulty two-position three-way valve, causing winch operation issues. We provided the IA191-(P-059331-0000) Two-Position Three-Way Valve, which is perfectly matched to the rig’s hydraulic system. After installation, the hydraulic pressure stabilized, and the winch operated smoothly, ensuring uninterrupted drilling work.

Case 3: Gearbox Failure in Drilling Rig Transmission System

A drilling rig’s transmission system had power loss due to a worn non-original gearbox assembly, leading to complete drilling shutdown. We supplied the Gearbox Assembly G04020000002AA, which is fully compatible with the rig. After replacement, the transmission system resumed normal operation, and the rig operated stably for 900 hours, reducing downtime by 90%.

FAQ (Frequently Asked Questions)

Procurement & Technical Reference Standards

To help you purchase the right parts and solve technical problems efficiently, we provide clear procurement and technical reference standards that align with industry best practices:

• Procurement Reference Standards: All parts are supplied with quality certificates (ISO 9001, API 7-1), compatibility reports, and detailed specifications. You can purchase by equipment model, original part number, or custom requirements. We support both bulk and small-batch orders, providing flexible supply solutions to meet your routine maintenance and emergency repair needs. Our parts are priced competitively while maintaining OEM-level quality.

• Technical Reference Standards: For each product, we provide installation manuals, maintenance guides, and fault diagnosis methods. For example, we offer detailed instructions for installing the Top Drive DQ70BSC Bearing and replacing the Q11F-16P Ball Valve. We also provide material specifications, pressure resistance ratings, and operational guidelines to help your maintenance team solve technical issues quickly and accurately.

Conclusion & Procurement Invitation

Our full range of mechanical parts—from the Top Drive DQ70BSC Bearing 4301000490, ZJ45 Y/G10II-500 Pipeline, and Q11F-16P Ball Valve to gearbox assemblies, hydraulic valves, and boiler components—are engineered to solve your equipment maintenance pain points, improve operational efficiency, and reduce long-term costs. We adhere to strict quality control processes, ensuring each part is reliable, compatible, and durable. Whether you need standard replacement parts, specialized components for ZJ series drilling rigs, or top drive/boiler accessories, we are your trusted supply partner.

We invite you to contact us to discuss your specific needs. Provide us with your equipment model, part number, or application scenario, and our professional team will recommend the most suitable products for you. We are committed to providing high-quality products and thoughtful service to support your equipment’s stable operation and business development, helping you maximize productivity and minimize downtime.

contact us ：

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.