ZQ203-001 M16×40 Bolt & ZQ203 Series Spare Parts

Product Introduction: Trusted Spare Parts to Keep Your Machinery Running Without Interruption

Anyone who works with industrial machinery—whether in oil fields, manufacturing plants, or heavy equipment operations—knows that even the smallest component failure can lead to big problems. A loose bolt, a worn washer, or a faulty bearing can shut down an entire system, costing hours of lost production and thousands of dollars in repairs. That’s why we focus on manufacturing and supplying high-quality ZQ203 series spare parts, including the ZQ203-001 M16×40 Bolt (GB5783-86), ZQ203-030 8106 Bearing (30x47x11), ZQ203-006 Brake Disc, and over 35 other critical components. Every part we produce is built to fit perfectly, last longer, and solve the common pain points that maintenance teams and procurement professionals face daily.

Our ZQ203 series parts cover every essential component needed to maintain industrial machinery: from bolts, nuts, and washers to shafts, gears, bearings, and housings. Each part is engineered to be a direct replacement for original equipment, ensuring compatibility without any modifications. Over the past 6 years, we’ve supplied more than 18,000 units of ZQ203 series parts to industrial sites across 25 countries, with a 99.5% fit rate and only 2 reported defects in the past year. Whether you’re replacing a single ZQ203-001 Bolt for an emergency repair or stocking up on ZQ203-030 Bearings for your maintenance inventory, our parts deliver the reliability and durability you need to keep your operations on track.

Core Purpose & Target User Needs

The core purpose of our ZQ203 series parts is to replace worn, damaged, or faulty components in industrial machinery—including oil drilling equipment, conveyor systems, and mechanical transmission units—minimizing downtime, reducing maintenance costs, and extending the service life of your valuable equipment. Our target users include maintenance supervisors, field engineers, and procurement managers in industries like oil and gas, heavy manufacturing, and construction. These users face unique challenges: tight maintenance windows, the need for parts that fit on the first try, and the pressure to avoid costly system failures. Our ZQ203 series parts address these needs by offering precise compatibility, exceptional durability, and easy installation—eliminating the guesswork and frustration of low-quality aftermarket replacements.

Function & Structural Features

Key Functionality

Each component in the ZQ203 series serves a critical role in keeping your machinery operational. The ZQ203-001 M16×40 Bolt (GB5783-86) secures heavy components together, withstanding high vibration and torque to prevent loosening—a common cause of machinery failure. The ZQ203-030 8106 Bearing (30x47x11) reduces friction between moving parts, ensuring smooth rotation and preventing overheating that can damage expensive components. The ZQ203-006 Brake Disc provides reliable stopping power, ensuring the safety of your team and equipment in high-load applications. Even small parts like the ZQ203-002 16 Spring Washer (GB93-87) play a vital role—they absorb vibration and prevent bolts from loosening, while the ZQ203-026 M8×1 Oil Cup (GB1152-89) ensures proper lubrication, reducing wear and extending component life.

Structural Features

Our ZQ203 series parts are built to withstand the harshest industrial conditions, with structural features that prioritize durability and performance. The ZQ203-001 M16×40 Bolt is made from 10.9-grade alloy steel, with a galvanized finish that resists corrosion and ensures a tensile strength of 1040 MPa—strong enough to hold heavy components together even under extreme vibration. The ZQ203-030 8106 Bearing features a single-row ball design with a hardened raceway, capable of handling radial loads up to 12.8 kN and axial loads up to 5.2 kN without deformation. The ZQ203-006 Brake Disc is made from high-carbon steel (45#) with a heat-treated surface, achieving a hardness of 58 HRC—resistant to wear and capable of withstanding high temperatures up to 300°C. All parts are precision-machined with a dimensional accuracy of ±0.01 mm, ensuring a perfect fit with original equipment.

Applicable Working Conditions

Our ZQ203 series parts are engineered to perform reliably in the most demanding industrial environments, including:

• Oil drilling sites: Withstand high temperatures (up to 130°C), high pressure (up to 45 MPa), and exposure to drilling mud and abrasive particles.

• Mechanical transmission systems: Resist corrosion from lubricants and maintain performance in temperatures ranging from -50°C to 100°C.

• Heavy machinery: Handle continuous vibration (up to 20 g) and heavy loads without loosening or wear.

• Outdoor and offshore applications: Tolerate humidity, saltwater corrosion, and extreme temperature fluctuations, meeting IP67 waterproof standards for critical components.

Whether your equipment is operating in the deserts of Australia, the cold oil fields of Canada, or the offshore rigs of Brazil, our ZQ203 series parts are built to adapt and perform consistently.

Maintenance & Engineer Tips

Maintenance Recommendations

To maximize the service life of our ZQ203 series parts, follow these simple, practical maintenance steps: Inspect the ZQ203-030 8106 Bearing every 6 months for signs of wear or lubrication loss—if you notice excessive noise or heat, add lithium-based grease immediately. Check the ZQ203-001 M16×40 Bolt monthly for tightness, torquing it to 80 N·m to prevent loosening. Replace the ZQ203-002 16 Spring Washer every 12 months—even if it looks undamaged, it loses elasticity over time, reducing its ability to absorb vibration. Store all spare parts in a dry, temperature-controlled environment (12°C to 24°C) to prevent rust and damage.

Engineer Pitfall Reminders

Based on our experience supporting over 700 field engineers, here are common mistakes to avoid: Never use a standard bolt instead of the ZQ203-001 M16×40 Bolt—standard bolts lack the tensile strength needed, leading to failure under load. When installing the ZQ203-030 8106 Bearing, do not hammer it into place—use a press tool to avoid damaging the raceway. Do not mix different brands of washers with ZQ203 series bolts—non-compatible washers can distribute pressure unevenly, leading to bolt failure. Always check the size of the ZQ203-028 Bushing before installation—using the wrong size can cause friction and overheating.

We supply the following spare parts:

ZQ203-001 GB5783-86 Болт М16х40

ZQ203-002 GB93-87 Пружиная шайба 16

ZQ203-003 01.01-01.1 У становочный штифт 1

ZQ203-004 01.01-04 Упорный штифт

ZQ203-005 GB93-87 Пружиная шайба 12

ZQ203-006 01.01.02-00 Тормозной диск

ZQ203-007 GB819-85 Винт М12х20

ZQ203-008 01.01-35 Крышка

ZQ203-009 01.01-33 Пружина

ZQ203-010 01.01-34 Втулка

ZQ203-011 GB5783-86 Болт М16х45

ZQ203-012 01.01-22(1) Фланец (Верх.)

ZQ203-071 GB70-85 Винт M8X20

ZQ203-013 01.01-30 Вкладыш

ZQ203-072 01.01-06 Клин(2)

ZQ203-073 01.01-05 Клин(1)

ZQ203-019 01.01-21 Крышка

ZQ203-020 01.01-20 Втулка

ZQ203-021 01.01-43 Плавающий блок

ZQ203-022 01.01-42 Валик

ZQ203-023 01.01-37 Открытая шестерня

ZQ203-024 01.01-40 Винт стопорный

ZQ203-025 01.01-41 Винт

ZQ203-026 GB1152-89 Маслёнка М8х1

ZQ203-027 01.01-39 Валик

ZQ203-028 01.01-38 Втулка

ZQ203-029 01.01-13 Ролик

ZQ203-030 GB301-84 Подшипник 8106 30x47x11

ZQ203-128 01.02-01 Ниж. корпус

ZQ203-031 01.01-22(2) Фланец нижний

ZQ203-032 01.01-01(2) У становочный штифт

ZQ203-033 01.01-07 Круг на поводок

ZQ203-034 01.01.01-03 Гайка

ZQ203-035 GB93-87 Шайба 20

ZQ203-036 01.01.01-00 У становочный корпус

ZQ203-037 GB73-85 Винт M12X16

ZQ203-038 01.01.01-05 Пружина

Field Fault Repair Cases

Here are 4 real-world repair cases that demonstrate how our ZQ203 series parts solve critical equipment issues and save our customers time and money:

Case 1: Bolt Failure in Bass Strait Oil Field, Australia

Location: Bass Strait Oil Field, Australia | Equipment Model: Drilling Rig Transmission System | Load: 38 MPa Working Pressure, 1500 RPM Operation | Issue: ZQ203-001 M16×40 Bolt loosened and failed, causing component misalignment and system shutdown. Solution: Replaced the bolt with our ZQ203-001 and installed a new ZQ203-002 16 Spring Washer, torquing to 80 N·m. Result: Component alignment restored, system pressure stabilized at 38 MPa, and bolt remained secure for 10 months. Customer Feedback: “The replacement bolt fit perfectly—we avoided a 2-day shutdown, saving $15,000 in lost production. It’s been 8 months, and no issues.”

Case 2: Bearing Failure in Athabasca Oil Sands, Canada

Location: Athabasca Oil Sands, Canada | Equipment Model: Conveyor System | Load: 10 kN Radial Load | Issue: ZQ203-030 8106 Bearing worn, causing excessive noise (95 dB) and overheating (85°C). Solution: Replaced the bearing with our ZQ203-030 and applied lithium-based grease. Result: Noise reduced to 62 dB, temperature stabilized at 48°C, and conveyor system resumed full operation. Customer Feedback: “The bearing was easy to install and solved the noise issue immediately—our maintenance team was back to work in under 2 hours.”

Case 3: Brake Disc Wear in Shengli Oil Field, China

Location: Shengli Oil Field, Shandong, China | Equipment Model: Drilling Rig Brake System | Load: 25 MPa Pressure | Issue: ZQ203-006 Brake Disc worn, reducing stopping power by 40% and creating safety hazards. Solution: Replaced the brake disc with our ZQ203-006 and adjusted the brake system. Result: Stopping power restored to 100%, braking distance reduced by 1.2 meters, and disc service life extended to 30 months. Customer Feedback: “The new brake disc is far more durable than the original—we no longer have to replace it every 18 months, saving time and money.”

Case 4: Oil Cup Blockage in Campos Basin, Brazil

Location: Campos Basin Offshore Rig, Brazil | Equipment Model: Mechanical Gearbox | Load: 18 g Vibration | Issue: ZQ203-026 M8×1 Oil Cup blocked, causing inadequate lubrication and gear wear. Solution: Replaced the oil cup with our ZQ203-026 and flushed the gearbox with industrial lubricant. Result: Lubrication restored, gear wear reduced by 70%, and gearbox service life extended by 24 months. Customer Feedback: “The oil cup was a perfect fit—our gearbox is running smoother than ever, and we’ve cut maintenance time by half.”

Authority & Enterprise Endorsement

All our ZQ203 series parts are manufactured in compliance with international standards, including ISO 9001:2015 quality management system, GB5783-86 for bolts, GB301-84 for bearings, and API 6A for oil field equipment components. We conduct 100% pre-shipment inspection, including tensile strength testing, dimensional measurement, and hardness testing, to ensure each part meets our strict quality standards. Our manufacturing facility is equipped with CNC machining centers and automated testing equipment, allowing us to produce parts with consistent quality and accuracy. We’ve been awarded the “Industrial Spare Parts Excellence Award” by the Global Machinery Association for 3 consecutive years, and our parts are trusted by 18 of the world’s top 30 oil and gas companies. We also maintain a testing lab where each part undergoes 500 hours of simulated industrial operation to ensure durability.

FAQ (Frequently Asked Questions)

Procurement Guide

When it comes to industrial spare parts, reliability and compatibility are non-negotiable—every minute of downtime costs you money, and every ill-fitting part adds frustration to your maintenance routine. Our ZQ203 series parts, including the ZQ203-001 M16×40 Bolt, ZQ203-030 8106 Bearing, and ZQ203-006 Brake Disc, are engineered to solve these problems, delivering the fit, durability, and performance you need to keep your machinery running smoothly. Whether you need a single replacement part for an emergency repair or a bulk order to stock your maintenance inventory, we offer competitive pricing and reliable supply. All our parts come with a 12-month warranty against manufacturing defects, giving you peace of mind. To ensure you get the right part for your equipment, simply provide your machinery model and component requirements, and our team will help you select the perfect match. Choose our ZQ203 series parts to minimize downtime, reduce maintenance costs, and keep your industrial operations running at peak efficiency.