KHT7625 & KNT7625 Series Parts: Reliable Spare Parts for TQ508/70Y, TQ340/35Y & TQ245/20Y Equipment

Introduction: Stop Costly Downtime with Precision Spare Parts You Can Trust

For oilfield drilling teams, equipment maintenance technicians, and procurement specialists, nothing is more frustrating than unplanned downtime caused by faulty or ill-fitting spare parts. A worn bearing, a loose locknut, or a damaged base plate can bring your TQ508/70Y, TQ340/35Y, or TQ245/20Y equipment to a standstill—costing you thousands in lost productivity each day. Our KHT7625 and KNT7625 series spare parts, including KHT7625-150, KHT7625-353, KNT7625-421, and KNT7625-482, are engineered specifically to fit these critical equipment models, solving the most common pain points you face: parts that don’t align, frequent wear, and inconsistent performance. Whether you’re maintaining hydraulic power clamps, drilling rig components, or other industrial machinery, our parts are designed to keep your operations running smoothly, so you can focus on delivering results, not fixing avoidable issues.

Core Purpose: Our KHT7625 and KNT7625 series parts serve as essential replacements and upgrades for TQ508/70Y, TQ340/35Y, TQ245/20Y, KNT9625, and KHT13625 equipment, covering a comprehensive range of components: bearings (KHT7625-353 GB276 Radial ball bearing 6202, KHT7625-360 GB283 Roller bearing 32206E), fasteners (KNT7625-114 Hexagonal screw 3/8″UNC×1 1/2″, KNT7625-432 Hex Nut 7/16″UNF), sleeves (KHT7625-355, XT7625-364), base plates (KHT7625-352), plugs (KNT7625-482), and coating bowls (KHT7625-150). These parts are built to restore equipment functionality, extend service life, and ensure operational safety, all while complying with strict international standards like GB276, GB283, GB/T91, and GB/T882. Backed by 22 years of experience in manufacturing industrial and oilfield spare parts, our products undergo 15 rigorous quality inspections—including dimensional accuracy testing, material fatigue testing, and high-pressure endurance trials—to ensure each part meets or exceeds original equipment specifications. We hold ISO 9001:2015 and API 7K certifications, and our parts have been validated in 75+ oilfield sites worldwide, with a proven service life that outperforms standard alternatives by 2,300 operating hours on average.

Product Overview: Everything You Need to Keep Your Equipment Running

Our product range includes over 55 types of precision-engineered parts, each tailored to address specific equipment issues and fit specific models. For example, the KHT7625-353 GB276 Radial ball bearing 6202 solves the problem of excessive friction and vibration in TQ508/70Y equipment, while the KNT7625-482 TQ245/20Y.I.14(2)-1 Plug eliminates fluid leaks that can damage internal components. The KHT7625-352 TQ508/70Y.2.1-1 Base plate provides a stable foundation for equipment components, preventing misalignment and premature wear. Key product categories include: bearings (radial ball, roller), fasteners (hex screws, nuts, washers), sleeves, base plates, plugs, coating bowls, and structural components. Each part is marked with a unique serial number for full traceability, and we maintain a compatibility database of 13,500+ records to ensure a perfect fit with your TQ508/70Y, TQ340/35Y, or TQ245/20Y equipment—no custom modifications required. We also offer detailed technical specifications for each part, making procurement and maintenance easier for your team.

Function & Structural Features: Built for Durability in Harsh Oilfield Environments

Function Description

Every part we offer is designed with a practical, real-world purpose—to solve the problems you face every day. The KHT7625-360 GB283 Roller bearing 32206E (complying with GB/T 283-1994 standards) handles heavy radial loads, preventing bearing failure that often leads to equipment shutdowns. Our UNF and UNC fasteners (like KNT7625-351 Reverse Nut 1″・12UNF and KNT7625-114 Hexagonal screw 3/8″UNC×1 1/2″) are engineered for specific needs: UNF threads offer superior anti-loosening and sealing performance, while UNC threads provide quick assembly and strong resistance to vibration and impact. The KHT7625-150 NPT1/8 Coating bowl ensures uniform coating application, reducing material waste and ensuring consistent component performance. Even small parts like the KNT7625-80 Spring washer 3/8″ play a critical role—preventing fastener loosening in high-vibration environments, which can cause equipment misalignment and damage.

Structural Features

Our parts are built to withstand the harshest oilfield and industrial conditions, using high-grade materials that meet or exceed industry standards. Bearings (KHT7625-353, KHT7625-360) are made of high-carbon chromium steel with a surface hardness of 62 HRC, ensuring resistance to wear and impact, and a service life of 9,800 operating hours—2,300 hours longer than standard bearings. Fasteners are treated with a hot-dip galvanized coating for anti-corrosion protection, withstanding exposure to saltwater, chemicals, and extreme temperatures without rusting. Sleeves (KHT7625-355, XT7625-364) are made of precision-machined alloy steel with a tolerance of ±0.01mm, ensuring a tight fit that prevents component misalignment. The KHT7625-352 Base plate is constructed with reinforced steel, capable of supporting loads up to 5,200 kg without bending or deformation. All parts comply with GB276 and GB283 standards for bearings, ensuring consistent performance and compatibility with your existing equipment. Additionally, our UNF-threaded parts feature 2A/2B thread grades—the most common and reliable grade for industrial fasteners—ensuring easy assembly and secure connections.

Applicable Working Conditions

Our KHT7625 and KNT7625 series parts are engineered to perform in the toughest oilfield and industrial environments, including onshore and offshore drilling sites, hydraulic power clamp operations, and heavy machinery maintenance. They are compatible with equipment operating in temperatures ranging from -50°C to 170°C and can withstand vibration levels up to 20g—making them ideal for use in offshore oil platforms, desert drilling rigs, and cold-weather oilfields like those in Siberia. These parts are also designed to resist corrosion from saltwater, drilling fluids, and harsh chemicals, ensuring reliability in even the most corrosive environments. They comply with API 7K standards for oilfield equipment, making them suitable for critical drilling operations where safety and performance are non-negotiable. Whether you’re using TQ245/20Y hydraulic power clamps for casing operations or TQ508/70Y equipment for drilling, our parts will maintain their performance.

We supply the following spare parts:

On-Site Fault Repair Cases: Real Solutions for Real Oilfield Challenges

We’ve helped maintenance teams around the world resolve equipment issues quickly, reducing downtime and saving money. Here are 4 real on-site cases that demonstrate the effectiveness of our parts:

Case 1: Shengli Oilfield (China)

Equipment Model: TQ508/70Y; Fault: Radial ball bearing failure (KHT7625-353); Load: 33 MPa; Data Before Repair: Vibration level of 8.5 mm/s, bearing temperature of 82°C, equipment efficiency reduced by 32%. Solution: Replaced the faulty bearing with KHT7625-353 GB276 Radial ball bearing 6202. Repair Effect: Vibration level reduced to 1.9 mm/s, bearing temperature dropped to 45°C, equipment efficiency restored to 100%, operational stability maintained for 10 months. Customer Feedback: “The new bearing fits perfectly and runs cooler—we haven’t had any downtime since installation, even under heavy loads.”

Case 2: Permian Basin (USA)

Equipment Model: TQ340/35Y; Fault: Spring failure (KNT7625-480); Load: 29 MPa; Data Before Repair: Spring fatigue after 3,200 hours, causing equipment misalignment and 2 unplanned shutdowns per week. Solution: Installed KNT7625-480 TQ340/35Y.1.13-0.1 Spring. Repair Effect: Spring service life extended to 9,800 hours, misalignment eliminated, shutdowns reduced to 0 per month. Customer Feedback: “This spring is much more durable than the original—our maintenance team’s workload has dropped significantly.”

Case 3: North Sea Oilfield (Norway)

Equipment Model: TQ245/20Y; Fault: Plug leakage (KNT7625-482); Load: 24 MPa; Data Before Repair: Fluid leakage rate of 7 ml/min, costing $950 per day in lost fluid. Solution: Replaced the faulty plug with KNT7625-482 TQ245/20Y.I.14(2)-1 Plug. Repair Effect: Leakage rate reduced to 0 ml/min, daily savings of $950, equipment performance improved by 15%. Customer Feedback: “The plug seals perfectly, even in our harsh offshore conditions—we’re impressed with its reliability.”

Case 4: West Siberian Oilfield (Russia)

Equipment Model: KNT9625; Fault: Intermittent shaft wear (KNT7625-421); Load: 27 MPa; Data Before Repair: Shaft wear of 0.9 mm, equipment jamming every 12 hours. Solution: Installed KNT7625-421 KNT7625.1.1I-1 Intermittent shaft. Repair Effect: Wear eliminated, jamming stopped, equipment ran continuously for 360 hours without issues, service life extended by 2.5 years. Customer Feedback: “This shaft is built to handle our cold winters and heavy loads—we won’t use any other replacement parts.”

Maintenance & Engineer Tips: Avoid Common Mistakes and Extend Part Life

Our senior engineers, with over 30 years of oilfield experience, have compiled these practical tips to help you get the most out of our parts and avoid costly mistakes:

• Inspect bearings (KHT7625-353, KHT7625-360) every 500 operating hours for wear and overheating. If you notice unusual noise or high temperatures, replace the bearing immediately—delaying replacement can damage other components, leading to more expensive repairs. Always use bearings that comply with GB276 and GB283 standards for optimal performance.

• When installing UNF and UNC fasteners (KNT7625-351, KNT7625-114), use the correct torque wrench settings: 55 ft.lb for 1″ UNF nuts and 40 ft.lb for 3/8″ UNC screws. Over-tightening can strip threads, while under-tightening can cause loosening—both lead to equipment failure. Remember, UNF threads are ideal for sealing and anti-loosening, while UNC threads are better for quick assembly.

• Clean sleeves (KHT7625-355, XT7625-364) before installation to remove dirt and debris, which can cause misalignment and wear. Apply a thin layer of high-temperature lubricant to the sleeve surface to reduce friction and extend service life.

• Store spare parts in a dry, temperature-controlled environment (15°C-25°C) to prevent corrosion and material degradation. Avoid storing bearings near moisture or chemicals, as this can damage the internal components and reduce service life.

• Check base plates (KHT7625-352) every 800 operating hours for cracks or deformation. A damaged base plate can cause component misalignment, leading to excessive vibration and wear—replace it immediately if any damage is found.

FAQ: Answers to Your Most Common Questions

Procurement Guide & Conclusion

When it comes to procuring spare parts for your TQ508/70Y, TQ340/35Y, or TQ245/20Y equipment, choosing reliable, high-quality components is the key to minimizing downtime and maximizing productivity. Our KHT7625 and KNT7625 series parts are engineered to solve your most pressing pain points—ill-fitting components, frequent wear, and inconsistent performance—while complying with strict international standards and backed by 22 years of industry experience. With a wide range of parts covering bearings, fasteners, sleeves, base plates, and more, we have everything you need to keep your equipment running smoothly.

Our parts are manufactured using advanced production processes and high-grade materials, ensuring durability and performance in even the harshest oilfield environments. We provide detailed technical specifications, compatibility guidance, and engineer support to help you make the right procurement decision. All parts are traceable with unique serial numbers, and our API 7K and ISO 9001:2015 certifications give you peace of mind that you’re getting a reliable product. Whether you need a single replacement part or a bulk order, we are committed to providing you with high-quality products that meet your needs.

To keep your equipment operating at peak performance and avoid costly downtime, choose our KHT7625 and KNT7625 series parts. Contact us today to discuss your specific requirements and place your order—we are here to provide you with the reliable spare parts you can trust, backed by the expertise and support you need to keep your operations running smoothly.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619