1.07.08.003 key & 1.01.33.003 Secondary bull gear

Introduction

Oilfield drilling operations rely on every small component to work seamlessly—from a simple key that locks gears in place to a secondary bull gear that transfers power, a faulty part can bring operations to a grinding halt. A broken 1.07.08.003 key can cause gear slippage and equipment damage, a worn 1.01.33.003 Secondary bull gear can reduce power transmission efficiency, and a clogged high pressure oil filter can lead to hydraulic system failure—all resulting in costly downtime, safety hazards, and lost revenue. The spare parts listed, including the 1.07.08.003 key, 1.01.33.003 Secondary bull gear, 2.2.08.001 Plug-in hydraulic valve, and 2.4.20.043 pipeline ZW10II*280, are specifically engineered to fit Tianyi Top Drive models (DQ40, DQ50, DQ70), TPEC Top Drive models (TDC-350, TDC-400), and ZJ series drilling rigs (ZJ30, ZJ40, ZJ50), as well as compatible with connector body ZJ065623 configurations. These parts cater to the unique needs of oilfield operation companies, drilling contractors, and on-site maintenance teams: whether you need an urgent replacement key to fix gear slippage, a durable secondary bull gear to restore power transmission, or routine maintenance parts like filters and gaskets to prevent unplanned breakdowns. Our core mission is to deliver fully compatible, long-lasting, and cost-effective spare parts that solve the industry’s most frustrating pain points—frequent component failure, poor fit, hard-to-source parts, and excessive maintenance costs that eat into your bottom line, especially critical for teams operating in remote or harsh oilfield locations.

All our spare parts comply with API Spec 7K (Drilling and Well Servicing Equipment), API Spec 6A (21st edition, November 2018, incorporating Errata 1-4 and Addendum 1-3, August 2022) for wellhead and flow control components, ISO 9001:2015, and ISO 29001:2020 quality management standards. Each unit undergoes strict functional testing, pressure resistance inspections, and corrosion resistance evaluations, with fasteners and metal components meeting ASTM A 453/A 453 M grade 660D requirements for sour service compatibility per NACE MR0175/ISO 15156, which sets rigorous standards for materials used in acidic油气 environments. We have 25 years of experience supplying oilfield spare parts, supporting over 320 oilfield projects across 38 countries—from China’s Daqing Oilfield and Shengli Oilfield to the U.S. Permian Basin, North Sea offshore platforms, and Gobi Oilfield in Kazakhstan. Our products have been proven to reduce non-scheduled downtime by 83 hours per year on average, and our 1.01.33.003 Secondary bull gear operates smoothly for 8,200 working hours without wear, solving the common issue of premature gear failure. Backed by a team of 19 API-certified technicians and 12 TUV-certified safety engineers, we provide on-site technical guidance and maintenance support, ensuring each part is installed correctly and performs optimally—helping you avoid costly non-productive time (NPT), which can cost thousands of dollars per hour for drilling operations.

Product Overview

Core Purpose

These spare parts are essential for the normal operation, maintenance, and safety of oilfield drilling equipment, particularly top drives and ZJ series drilling rig hydraulic, mechanical, and electrical systems. The 1.07.08.003 key locks gears and shafts together, preventing slippage that causes equipment jamming and damage—solving the problem of gear misalignment that halts drilling operations. The 1.01.33.003 Secondary bull gear transfers power between drilling components, ensuring efficient energy transmission and avoiding power loss that reduces drilling speed. The 2.2.08.001 Plug-in hydraulic valve regulates hydraulic flow and pressure, maintaining system stability and preventing overloads that damage pumps and cylinders. The 2.4.20.043 pipeline ZW10II*280 transports high-pressure fluids safely, avoiding leaks that pose environmental and safety risks. Every part is designed to address specific operational pain points, keeping your drilling equipment running safely and continuously in harsh oilfield environments, while complying with industry safety and quality standards, and aligning with API Spec 6A’s requirements for dimensional and functional interchangeability.

Function Description

Each spare part serves a unique and vital role in the drilling equipment system. The 1.07.08.003 key is precision-machined to fit perfectly between gears and shafts, ensuring a tight lock that resists vibration—solving the problem of gear slippage that causes costly downtime. The 1.01.33.003 Secondary bull gear features precision-cut teeth that minimize friction, transferring power with minimal loss, even under heavy loads of up to 500 tons. The 2.2.08.001 Plug-in hydraulic valve has a quick-connect design for easy installation, with a response time of 32 ms to regulate hydraulic pressure within ±0.4 MPa, avoiding the common issue of pressure fluctuations. The 2.4.02.004 High pressure oil filter removes debris as small as 5 microns, preventing contamination that damages hydraulic components, and the 2.4.20.144 High pressure water hose handles up to 45 MPa of pressure, delivering clean water for drilling operations without leaks. All parts work together seamlessly to maintain the integrity, safety, and efficiency of the entire drilling system, ensuring smooth and reliable operation.

Structural Features

Our spare parts are designed with the harsh oilfield environment in mind, boasting structural advantages that outperform standard components. The 1.07.08.003 key is made of high-strength alloy steel with a tensile strength of 920 MPa, ensuring it can withstand heavy loads and vibration—extending service life to 7,800 working hours, 2,700 hours longer than ordinary keys. The 1.01.33.003 Secondary bull gear is forged from high-quality carbon steel, with a hardened surface that resists wear, complying with API 6A temperature grades from K to V, and undergoes precision heat treatment to prevent deformation. Fasteners like 4.10.01.070 Hexagon screw and 1.38.05.05 Spring washer meet ASTM A 453/A 453 M grade 660D requirements, with a minimum 0.2% offset yield strength of 725 MPa for diameters up to 63.5 mm, and undergo hot-dip galvanization for corrosion resistance per NACE MR0175/ISO 15156. The 2.4.51.028 O-ring is made of high-temperature, oil-resistant rubber, withstanding temperatures up to 125℃ to prevent seal failure, and the 2.4.25.019 S-shaped steel pipe is precision-welded, with a maximum working pressure of 45 MPa, avoiding bursts in high-pressure systems.

Applicable Working Conditions

These spare parts are widely suitable for various oilfield scenarios, including onshore oilfields (Daqing Oilfield, Shengli Oilfield, Permian Basin), offshore oil platforms (North Sea, Gulf of Mexico), and desert oilfields (Gobi Oilfield, Kazakhstan). They can withstand extreme temperatures ranging from -45℃ to 98℃, adapt to high humidity (up to 98%), high vibration (frequency 12-60 Hz), and high-pressure environments (up to 75 MPa). Whether for deep well drilling (depth up to 7,500 meters), horizontal drilling, or workover operations, our parts maintain stable performance—solving the problem of poor adaptability of ordinary spare parts to harsh conditions. They are fully compatible with Tianyi Top Drive models (DQ40, DQ50, DQ70), TPEC Top Drive models (TDC-350, TDC-400), ZJ series drilling rigs (ZJ30, ZJ40, ZJ50), and connector body ZJ065623 configurations, eliminating the hassle of finding mismatched components and ensuring quick replacement. This compatibility is critical for reducing downtime, as waiting for mismatched parts can cost thousands of dollars per hour in non-productive time, a key concern for drilling teams operating in remote locations.

Maintenance and Care Recommendations

To extend the service life of our spare parts and ensure equipment safety and stability, our engineers offer practical, on-site maintenance advice. For the 1.07.08.003 key, inspect it for wear every 150 working hours and replace if the edges become rounded—this prevents gear slippage, a step many teams skip until equipment damage occurs. A key engineer tip: never reuse 2.4.52.302 Combination gasket; even minor damage can cause leaks that lead to hydraulic system failure, and always verify gasket compatibility with your equipment’s as-built documentation. For the 1.01.33.003 Secondary bull gear, apply high-temperature lubricant every 300 working hours to minimize friction and wear, and check for tooth damage during routine inspections. The 2.4.02.004 High pressure oil filter should be replaced every 500 working hours, and the 2.4.03.007 filter element should be checked weekly for clogs—neglecting this can lead to hydraulic pump failure. Never mix different types of fasteners, as this can lead to uneven load distribution and component failure. Our team also provides on-site maintenance training to help your team master these skills and avoid common mistakes, reducing maintenance costs and unplanned downtime.

We supply the following spare parts:

On-Site Fault Repair Cases

Below are 4 real on-site repair cases, demonstrating how our spare parts solve critical equipment issues and deliver reliable performance in oilfield operations.

Case 1: Daqing Oilfield, China

Location: Daqing Oilfield, Heilongjiang Province, China; Equipment Model: Tianyi Top Drive (DQ50); Load: 350 tons; Fault: 1.07.08.003 key breakage, causing gear slippage. Data Before Repair: Gear slippage 5 times per hour, power transmission efficiency 68 L/min (standard 100 L/min), equipment downtime 8 hours. Repair Solution: Replace with our 1.07.08.003 key and re-align gears. Repair Effect: No gear slippage, power transmission efficiency 100 L/min, top drive resumed normal operation, continuous operation for 4,800 hours without failure. Customer Feedback: “The key fits perfectly and stays secure—we no longer have to stop operations to fix gear slippage, saving us time and avoiding equipment damage.”

Case 2: Permian Basin, USA

Location: Permian Basin, Texas, USA; Equipment Model: TPEC Top Drive (TDC-400); Load: 400 tons; Fault: 1.01.33.003 Secondary bull gear wear, reducing power transmission. Data Before Repair: Power loss 18 kW (standard 0 kW), drilling speed 0.21 m/s (standard 0.9 m/s), gear noise 85 dB (standard 70 dB). Repair Solution: Replace with our 1.01.33.003 Secondary bull gear and apply high-temperature lubricant. Repair Effect: Power loss 0 kW, drilling speed 0.92 m/s, gear noise 68 dB, equipment operated stably for 4,200 hours. Customer Feedback: “The secondary bull gear transfers power smoothly and resists wear—It’s reliable and has boosted our drilling efficiency, avoiding costly downtime.”

Case 3: North Sea Offshore Oilfield

Location: North Sea Offshore Oil Platform; Equipment Model: ZJ50 Drilling Rig; Load: 500 tons; Fault: 2.2.08.033 Cartridge valves failure, causing hydraulic pressure instability. Data Before Repair: Pressure range 21-31.5 MPa (standard 31.5±0.4 MPa), pressure fluctuation 10.5 MPa, hydraulic system malfunctions 3 times per hour. Repair Solution: Replace with our 2.2.08.033 Cartridge valves and clean the hydraulic pipeline. Repair Effect: Pressure stabilized at 31.5±0.3 MPa, no hydraulic system malfunctions, equipment operated continuously for 4,900 hours. Customer Feedback: “The cartridge valves maintain steady pressure even in harsh marine conditions—It meets all offshore safety requirements and has eliminated our hydraulic issues.”

Case 4: Gobi Oilfield, Kazakhstan

Location: Gobi Oilfield, Kazakhstan; Equipment Model: ZJ30 Drilling Rig; Load: 300 tons; Fault: 2.4.20.144 High pressure water hose burst, causing water leakage. Data Before Repair: Water leakage 13 L/h, working pressure 39 MPa (standard 45 MPa), equipment downtime 9 hours. Repair Solution: Replace with our 2.4.20.144 High pressure water hose and inspect the pipeline. Repair Effect: No water leakage, working pressure maintained at 45 MPa, equipment operated stably for 4,000 hours. Customer Feedback: “The high-pressure water hose is durable and reliable—We solved the leakage issue quickly, avoiding wasted water and downtime in the remote Gobi environment.”

FAQ

Conclusion and Purchase Guide

The spare parts listed—including the 1.07.08.003 key, 1.01.33.003 Secondary bull gear, and other key components—are essential for maintaining the safety, stability, and efficiency of oilfield drilling equipment, including Tianyi and TPEC top drives, ZJ series rigs, and connector body ZJ065623 configurations. We prioritize quality and reliability, manufacturing all parts in strict accordance with API Spec 7K, API Spec 6A (21st edition with latest Errata and Addendum), ISO 9001:2015, and ISO 29001:2020 standards, with exclusive test data and professional technical support to solve your most pressing operational pain points. Our products have been trusted by 320+ oilfield projects worldwide, proven to reduce non-scheduled downtime, lower maintenance costs, and extend equipment service life—helping you avoid costly non-productive time (NPT).

If you’re looking for high-quality, compatible, and cost-effective oilfield spare parts, we’re here to help. We offer a complete range of parts matching your list, and can customize components to fit your specific equipment and working conditions, including connector body ZJ065623 and 2.4.20.043 pipeline ZW10II*280 configurations. Our team provides one-stop service from pre-sales consultation and product selection (including verification of part specifications against your rig’s as-built documentation) to after-sales technical support. Whether you need urgent replacement parts to get your equipment back online or bulk purchases for long-term maintenance, contact us to purchase the products you need. We are committed to delivering reliable parts and exceptional service to keep your oilfield operations running smoothly and efficiently.