484J-1005011 Engine Parts Crankshaft for Chery

Product Introduction

484J-1005011 Engine Parts Crankshaft for Chery

Our premium crankshafts are core components of internal combustion engines, expertly engineered to convert piston linear motion into rotational torque. Crafted from high-strength forged steel or alloy, these crankshafts withstand extreme pressure, heat, and rotational forces while ensuring minimal vibration.

Each unit undergoes precision balancing and hardening treatments for enhanced durability and fatigue resistance. Compatible with gasoline/diesel engines across sedans, trucks, and performance vehicles, our crankshafts deliver:

● Smooth power transmission

● Reduced operational friction

● Extended engine lifespan

Product Advantage

1.Super strong materials and forging technology Forged Crankshaft High performance forged crankshaft

Our crankshafts utilize aerospace-grade 4340/4140 forged steel with tensile strength exceeding 160,000 PSI – 30% higher than industry standards. Precision hot-forging under 2,500-ton pressure eliminates internal voids, enhancing structural integrity. Each unit undergoes ultrasonic testing to ensure 0 defects, providing 200,000+ miles service life even under extreme turbocharged conditions.

2.Zero Balance Vibration Control Technology Engine Crankshaft Diesel engine crankshaft replacement

Featuring laser-calibrated dynamic balancing within 0.5g-cm tolerance (ISO 1940 G1 Grade), our crankshafts reduce operational vibration by 70%. Computerized weight-matching counterweights minimize harmonic distortion, enabling smoother rotation at 8,000 RPM. This technology prevents premature bearing wear, extending engine lifespan by minimum 40%.

3.Nano surface strengthening treatment OEM Crankshaft Diesel engine crankshaft replacement

Proprietary QPQ salt bath nitriding creates 0.3mm surface layer with 65-70 HRC hardness – 3x more wear-resistant than standard models. Micro-polishing reduces friction coefficient to 0.02, improving fuel efficiency by 5-8%. Tested to withstand 500+ hours of ASTM G65 abrasion without performance degradation.

4.Intelligent thermodynamic design Nitrided Crankshaft Heavy duty truck crankshaft

Optimized crankpin geometry increases leverage ratio by 22% for 15% higher torque output. Finite Element Analysis (FEA)-optimized fillet radii distribute stress evenly, achieving fatigue resistance of 650 MPa at 107 cycles. Compatible with 1000°C exhaust gas temperatures in diesel applications.

Technical Parameters

1. Materials and Manufacturing Processes

Material: AISI 4340/4140 aviation grade forged steel (tensile strength ≥ 160000 PSI)

Molding process: 2500 ton hydraulic forging+temperature controlled normalizing treatment

Defect control: 100% ultrasonic testing (in accordance with ASTM E588 standard), porosity<0.2%

2. Heat treatment and surface strengthening

Hardening technology: QPQ salt bath nitriding (surface hardness 65-70 HRC, hardened layer depth 0.25-0.35mm)

Wear resistance: Through ASTM G65 wear test, the service life is increased by 300% compared to ordinary parts

Surface treatment: mirror polishing (Ra ≤ 0.1 μ m), friction coefficient ≤ 0.03

3. Dynamic balance accuracy

Balance level: ISO 1940 G1 level (residual unbalance ≤ 0.5g · cm)

Vibration control: amplitude<0.05mm at 8000 RPM

Process guarantee: CNC laser dynamic balance correction+3D simulation weight optimization

4. Performance and Durability

Torque bearing: Maximum continuous working torque of 1800 N · m @ 6000 RPM

Fatigue strength: 650 MPa @ 10 ⁷ cycles (SAE J2479 test standard)

Temperature tolerance: -40 ° C to+300 ° C without deformation under working conditions

Product Uses

Here are specific application scenarios of Engine Parts Crankshaft:

1. High performance modification and racing engine upgrade

Specially designed for modified and racing vehicles pursuing extreme power, the nitrogen reinforced crankshaft can withstand ultra-high speeds of over 10000 RPM, and the FEA optimized crankshaft geometry increases torque output by 22%. Solve the problem of high-speed breakage of original parts and ensure stable power transmission for linear acceleration/drift races.

2. Long distance transportation of heavy commercial vehicles

For large displacement diesel engines, the forged steel crankshaft has a torque bearing capacity of 1800 N · m to ensure heavy-duty climbing performance. QPQ surface treatment resists diesel sulfur corrosion, with a dynamic balance accuracy of 0.5g · cm, reducing bearing wear during 800000 kilometers of long-distance transportation and avoiding mid journey shutdowns caused by crankshaft fatigue.

3. Life extension and maintenance of urban passenger vehicles

Accurately matching mainstream sedan engines, SAE J2489 interchangeability standard enables rapid maintenance. Mirror polishing technology reduces fuel consumption by 5-8%, solves the problems of idle shaking and power attenuation caused by crankshaft wear in old vehicles, and extends engine life to over 300000 kilometers.

4. Supporting facilities for new energy extended range systems

Specially optimized for plug-in hybrid vehicles with extended range engines, laser balancing technology controls vibration within 0.05mm to enhance motor engine synergy efficiency. The low friction design reduces power generation energy consumption and meets the EU Euro 7 emission standards, which is the core guarantee for the smooth operation of hybrid systems.

Product Operate Guide

1. Professional installation preparation

Operating instructions:

Clean the engine cylinder block bearing seat and measure the main spindle neck size with a micrometer (tolerance ≤ 0.005mm). Apply specialized assembly grease (such as Liqui Moly LM50) to the surface of the bearing shell. Key tip: Freeze the crankshaft to -20 ° C for 2 hours before installation, making it easier to align the thermal expansion and contraction clearances.

2. Step by step torque tightening

Operating instructions:

Tighten the main bearing cover bolts in three steps according to the order in the maintenance manual (e.g. 1 step 30Nm → 2 steps 60Nm → 3 steps 90 ° angle). Use a calibrated torque wrench with an error of less than ± 3%. Warning: Do not tighten continuously in one direction, otherwise it may cause deformation of the cylinder body!

3. Precise gap calibration

Operating instructions:

Place the Plastigauge measuring strip on the spindle neck and install the bearing cover to the standard torque. After removing the cover, measure the flattened width with a scale card (ideal value 0.03-0.08mm). Attention: If it exceeds the tolerance, the bearing shell needs to be replaced to avoid bearing burning caused by insufficient oil pressure.

4. Dynamic balance verification

Operating instructions:

After assembly, connect the handheld vibration meter (such as Fluke 805), and the amplitude should be less than 0.06mm (within 2000 RPM) when idling. Abnormal vibration needs to be returned to the factory for G1 level laser balancing. Tip: The flywheel/clutch plate must be dynamically balanced synchronously.

5. Break in and maintenance

Operating instructions:

After the first start-up, run at 2000 RPM for 20 minutes to break in the micro bumps. Replace with high zinc engine oil (such as Valvoline VR1). Maintenance rule: Check the wear of the journal every 50000 kilometers (maximum allowable ellipticity 0.01mm).

FAQ

Q1: Are you manufacturing company?

A: Yes. We are factory, located in Guangzhou. Our factory has certificate of lATF 16949.

Q2: What are your main products?

A: We have steering rack ,steering pump ,wheel hub and bearing ,drive shaft ,alternator,control arm and so on.

Q3: What is the lead time?

A: lt takes 3-7 days when stock is available, and 15-40 days when out of stock.

Q4: What is the warranty?

A: Our guarantee period is 60,000 kilometers or 1 year.

Q5: Do you have samples?

A: Yes, we have samples available. For bulk orders, please inquiry us for more details.