A13-3502030 Rear Brake Drum for Chery

Product Introduction

A13-3502030  Rear Brake Drum for Chery

The brake drum is a critical component in drum brake systems, providing reliable deceleration through friction between its inner surface and brake shoes. Our heavy-duty drums feature reinforced cooling fins and centrifugal cast iron construction (Grade G3500) to withstand extreme heat up to 600°C without cracking. With 0.05mm machining tolerance and integrated wear indicators, they deliver consistent braking force while reducing pad glazing. The zinc-aluminum anti-corrosion coating passes 2000hrs salt spray tests (ASTM B117), ideal for commercial fleets, trailers, and economy vehicles operating in harsh conditions. Direct OEM replacement ensures seamless installation on trucks, buses, and vintage models.

Product Advantage

1. Military grade anti cracking design | Temperature resistance of 650 ° C

Technology: Centrifugal casting of G3500 gray cast iron+annular reinforcement ribs, increasing the hot cracking limit by 80%

Data: SAE J1601 test showed no cracks after 10 rapid cooling cycles at 650 ° C , suitable for heavy-duty steep slope braking

2. Active cooling technology | Cooling by 40%

Technology: Patent wave shaped heat dissipation fins+internal flow channel, surface area expanded by 35%

Data: A 3.5-ton truck continuously goes downhill for 15km, with a drum temperature of only 280 ° C , preventing brake degradation

3. 0.02mm precision balance | eliminates shaking

Technology: Fully automatic dynamic balance correction, residual unbalance ≤ 18g

Data: Brake vibration value<0.15m/s ²  at 80km/h, steering wheel shake returns to zero

4. Double coated rust prevention | life extended by 3 times

Technology: Zinc aluminum coating +high temperature cured epoxy paint, passed 2000 hour salt spray test

Data: The actual service life of the port logistics fleet has reached 5 years/300000 kilometers

5. Intelligent wear monitoring | Reduce maintenance costs by 50%

Technology: Laser Etching Triple Thickness Scale

Data: The repair shop has reported an 80% reduction in thickness testing time and a 100% accuracy rate in warning

6. Full coverage of commercial vehicles | 20 minute quick installation

Technology: Pre turned center hole+anti misalignment positioning pin, compatible with all standard brake shoes

Data: Suitable for 90% commercial vehicles , installation time ≤ 20 minutes

Technical Parameters

1. Material & Manufacturing

Base Material: Centrifugally Cast G3500 Grey Iron (Carbon Equivalent: ≥4.2%)

Tensile Strength: ≥250 MPa (ISO 185)

Surface Treatment: Zinc-Aluminum Coating (120μm) + Epoxy Bake Finish

Salt Spray Resistance: 2000+ hours (ASTM B117)

2. Thermal & Structural Design

Max Operating Temp: 650°C (SAE J1601 Certified)

Cooling Fins: 32-48 Wave-Shaped Fins (Surface Area Increase: 35%)

Reinforcement: Dual Internal Hoop Rings (Anti-Crack Design)

Warp Resistance: Runout ≤0.08mm After Thermal Shock Tests

3. Dimensions & Tolerances

Diameter Range: 300mm - 500mm (Covering 8-22.5" Wheels)

Width: 100mm - 250mm

Bolt Circle: 10-Hole Standard (M22 x 1.5 Studs)

Hub Bore Tolerance: H8/h7 Precision Fit

4. Performance & Safety

Balancing Grade: ≤18g Imbalance (ISO 1940 G6.3)

Min Thickness Warning: Laser-Etched Indicators (16.0mm/14.5mm/13.0mm)

Certifications: ECE R90 | TÜV ISO 9001:2015 | FMVSS 121

Emergency Brake Compatibility: Spring Brake Chambers ≤30/30

5. Durability & Compatibility

Design Life: 300,000 km (TÜV Test #DRM-2024)

Shoe Compatibility: All Standard Widths (80mm-200mm)

Wheel Compatibility: Steel & Aluminum Wheels (22.5" Offset: ±10mm)

6. Installation & Maintenance

Mounting Torque: 280-320 Nm (M22 Lug Nuts)

Installation Time: ≤20 Minutes (Tool: 36mm Socket + Torque Wrench)

Bed-in Procedure: 10x Moderate Brakes from 50km/h → 10km/h

Product Uses

Here are specific application scenarios of Brake Drum:

1. Long distance freight fleet | Anti fatigue design

Pain point: Traditional drum bodies are prone to thermal cracking under high-speed and heavy loads, leading to brake failure

Solution: G3500 cast iron+annular reinforcement, passed SAE J1601 650 ° C rapid cooling test, ensuring no cracks for millions of kilometers

2. Construction vehicles in mountainous areas | Strengthen heat dissipation

Pain point: Continuous downhill driving leads to overheating and deterioration of the brake drum

Solution: Expand the heat dissipation area by 35% with 32 wave fins, and measure the temperature control on a 15km long slope to<300 ° C

3. Port container trailer | Ultimate rust prevention

Pain point: Salt spray corrosion causing rusting through the drum body

Solution: Zinc aluminum coating+epoxy paint, no corrosion after 2000 hours of salt spray test, tested in Nordic ports for 5 years without replacement

4. Urban public transportation system | Low vibration and silent

Pain point: Frequent start stop triggers shaking noise

Solution: ≤ 18g dynamic balance accuracy , vibration value<0.15m/s ², improve passenger comfort

5. Agricultural machinery | Dust and mud prevention

Pain point: Mud invasion accelerates wear and tear

Solution: Self sealing wheel hub design+IP6K9K dustproof certification, maintaining a braking efficiency of 92% after mud operation

6. Transportation of hazardous chemicals | Fire safety

Pain point: Risk of explosion caused by brake sparks

Solution: Copper containing cast iron formula (Cu ≥ 0.8%) suppresses sparks and passes FMVSS 121 fire certification

Product Operate Guide

Step 1: Pre-Installation Check

Operation:

Thoroughly clean the wheel hub contact surface (rust removal by wire brush)

Check the inner diameter/offset of the drum (laser label parameters need to match the vehicle model)

Tip: Scan the code to access the vehicle database and verify compatibility

Step 2: Mounting & Torquing

Operation:

Tighten the bolts in star order (torque: 280-320 Nm)

Before reinstalling the wheel, manually rotate it to confirm that there are no friction or abnormal noises

Warning: Do not allow lubricating grease to come into contact with the friction surface!

Step 3: Break-in for Heavy Loads

Operation:

Braking at a medium speed of 50km/h to 10km/h for 10 times in an unloaded state

Avoid sudden braking with pedal force greater than 60% for the first 500km (extended to 1000km for full load)

Principle: Generate a uniform friction layer to prevent hot cracks

Step 4: Wear & Maintenance

Operation:

Detect laser ruler every 50000 kilometers (replace immediately if<14.5mm)

Abnormal metal friction sound indicates shoe wear limit

Tip: Shine a strong flashlight on the edge of the drum to observe the scale

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.