Bulldozer Track Chain Track Link Assembly

Introduction to Bulldozer Tracks Chains

Definition:

Bulldozer tracks, also known as crawler tracks or track chains, are heavy-duty continuous loops made of linked metal plates that replace traditional wheels on bulldozers and other tracked heavy machinery. They provide superior traction, weight distribution, and stability on rough or soft terrain.

Key Components:

1. Track Links (Pads):

• Steel plates with tread patterns for grip.

• Resist wear and absorb impact.

2. Track Shoes:

• Attached to links; provide ground contact.

• Options: flat, grouser (cleated), or swamp-style for different terrains.

3. Bushings & Pins:

• Connect links to form a flexible chain.

• Hardened steel to withstand stress.

4. Rollers & Idlers:

• Guide and tension the track.

• Include carrier rollers and sprocket-driven front idlers.

What Is The Most Important Link In The Bulldozer Track Chain Processing Process?

1. Bulldozer Track Chain Importance Of Heat Treatment :

The most important link in the bulldozer track chain processing process is heat treatment. Heat treatment plays a vital role in the chain manufacturing process. Its main purpose is to improve the hardness, strength and wear resistance of the chain, thereby ensuring the reliability and service life of the chain in the bulldozer operation. 

If heat treatment is not performed, the chain may become brittle, deformed, and unable to work properly. After heat treatment, the chain can effectively eliminate internal stress and improve its fatigue strength and durability through processes such as quenching and tempering.

2. Bulldozer Track Chain  Specific Steps Of Heat Treatment :

• Track links are forged,quenched and tempered.

• Rail deep hardened,with average surface hardness HRC 53.

• Track bushings treated in a special furnace for high temperature carburizing.

• Deep hardened pins for best resistance to wear and fatigue.

• Track shoes heat treated for proper thoughness and wear resistance.

Bulldozer Track Chain Maintenance Guide

1. Daily Inspection & Cleaning

• Check for Damage: Look for cracks, bent links, or excessive wear on pins and bushings.

• Remove Debris: Clear mud, rocks, and vegetation stuck in the tracks to prevent accelerated wear.

• Track Tension: Ensure proper tension (too loose → derailment risk; too tight → premature wear).

2. Lubrication (For Sealed/Lubricated Chains)

• Grease Regularly: Follow the manufacturer's intervals (typically every 50–250 operating hours).

• Use High-Quality Grease: EP (Extreme Pressure) grease for heavy loads.

• Check Seals: Damaged seals lead to grease leakage and dirt ingress.

(Note: Dry chains do not require lubrication but need frequent cleaning.)

3. Track Tension Adjustment

• Ideal Tension: The track should sag 20–40mm (0.8–1.6 inches) at the mid-point when lifted.

• Over-Tightening Causes:

• Increased sprocket & bushing wear

• Higher fuel consumption

• Under-Tightening Causes:

• Track derailment

• Excessive link and roller wear

4. Preventative Maintenance Schedule

5. Common Signs of Wear & Replacement Indicators

• Worn Bushings: Visible metal flaking or uneven wear.

• Elongated Chains: Pitch length increases beyond specs (measure with calipers).

• Cracked Links: Immediate replacement required (safety hazard).

• Sprocket Wear: "Hooked" teeth indicate chain mismatch.

(Pro Tip: Rotate track chains periodically to ensure even wear.)

6. Storage & Long-Term Care

• Park on Wooden Planks: Avoid direct ground contact to prevent rust.

• Release Tension: If storing for months, loosen tracks slightly.

• Apply Anti-Corrosion Spray: Especially in humid/salty environments.

Bulldozer track chain real-life photos of the forging process in the factory:

Bulldozer Track Chain Model：

• CATERPILLAR

D2,D3,D3B,D3C,D4,D4C,D4D,D4ED4H,D5,D5B,D5C,D5G,D5H,D5M,D5NXL,D6,D6C,D6D,D6H,D6R,D6K,D6HLGP,D6M,D6N,

D7E,D7F,D7G,D7H,D7R,D8R,D8K,D8L,D8N,D9N,D9R,D9T,D9L,D1ON,D1OR,D10T,D11N,D11R

• KOMATSU

D20,D21,D30,D31,D31PX-21,D39PX-21,D40,D41A-6,D41P-6,D50,D53,D61EX-12,D61PX-12,D65A-8,D65E-8,D65E-12,D65PX-12,D65EX-15,D65PX-15,D85A-18,D85C-21,D85A-21,D85E-21,D85EX-15,D85P-21,D155A-1,D155AX-3,D155AX-5,D155AX-6,D155C-1,D275A-2,D275A-5,D355A-1,D355A-3/5,D375A-2,D375A-5

• SHANTUI

SD16,SD22,SD23,SD32,SD42

• JOHN DEERE

JD655,JD700J-LGP,JD750,JD755,JD850,JD855

01 About Pictures

We are a manufacturer. Factory direct sales. All product pictures are taken in real life,without adding filters or modification.

02 About Quality

Products will be inspected layer by layer before delivery, and we will only deliver them if the quality is qualified.

03 About Payment

TT 30 percent deposit, and TT 70 percent balance after seeing the scan copy of bill of lading or LC at sight.

04 About Delivery

After the order is confirmed,we will communicate with the customer to determine the delivery time and deliver according to the contract time.

05 About After-Sales

If you have any problems during the warranty period, you can communicate with the merchant,and we will actively solve the problem for you.

High quality manufacturer, factory direct sales,if you have any questions, please feel free to consult us via email, WeChat or WhatsApp. We will be happy to answer you. Thank you for clicking and reading,and wish you a nice day,thanks (^U^)!!!

Hot Tags: d6d track links for sale, China, suppliers, factory, wholesale, Dozer D475 Track Link Assembly, Dozer D475 Track Link Assembly 198 32 02155, Dozer Track Chain for D85A 18 Komatsu, D475 Track Chain, D85 Track Chain, Track Chain for D85A 18 Komatsu