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ApplicationOur products consist of undercarriage parts for bulldozer and excavator such as Track link,Track roller,Carrier roller,Sprocket,ldler,Track shoe,Cutting edge,End bit,Tooth Bucket,Track pin,Track bush, Engine parts,Track boit&nuts.U-bolt,Centre bolt,Wheel bolt and other related parts.
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About UsFujian Yongsheng Machinery Parts Co., Ltd. is located in Quanzhou City, Fujian Province, which is one of the most developed regions of China Machinery Manufacturing.The company was established in 2003, after approximately 10years' effort, and now it is one of the leading construction machinery parts auto parts manufacturers in CHINA.
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BlogSuppliers who pass Quality ManagementSystem Certification, and have onsitematerials or finished products inspected,as certified by independent third parties.
NEWS
Leading chinese undercarriage pars & Machinery part supplier
Jul 21,2026
Why Does an Excavator Track Keep Coming Off? 8 Causes to Check
An excavator track that repeatedly comes off is usually a warning that tension, component guidance, wear, alignment, packed material or operating conditions need attention. Reinstalling the track may restore movement, but it does not identify why the derailment happened.
Jul 20,2026
Why Excavator Track Shoe Bolts Keep Loosening: 7 Causes to Check
A track shoe bolt that repeatedly comes loose is usually a joint problem, not just a bolt problem. Incorrect clamping force, contaminated mating surfaces, damaged holes, bent shoes, wrong hardware and undercarriage loads can all allow movement between the shoe and track link.
Jul 20,2026
Why Bulldozer Undercarriage Wears Unevenly: 7 Causes to Check
When one side, one roller position or one edge of a dozer track wears faster, the visible part is not always the root cause. Operating pattern, slope work, track tension, packing, alignment and mismatched wear can all change how the undercarriage carries load.
Jul 17,2026
Excavator Sprocket Wear: 6 Signs and Track Chain Matching Tips
A worn drive sprocket does more than change tooth shape. It can disturb engagement with the track chain, create abnormal noise and concentrate wear on bushings. This guide explains what to inspect before ordering a replacement.
Jul 17,2026
Excavator Undercarriage Inspection Checklist: 8 Areas to Check
A practical walk-around guide for checking track shoes, chains, rollers, idlers, sprockets, track tension and uneven wear before small problems spread through the complete running gear.
Jul 16,2026
Excavator Daily Maintenance Checklist: 10 Systems to Inspect
A useful excavator daily maintenance checklist covers the entire machine—not only the engine or undercarriage. Before each shift, inspect for leaks and damage, confirm fluid and cooling conditions, check the hydraulic system, tracks, work equipment, cab controls and safety devices, and record anything unusual. The exact procedure and service limits must always come from the operation and maintenance manual for the specific machine.
Jul 15,2026
Excavator Track Roller Maintenance and Wear Inspection Guide
Excavator track rollers, also called bottom rollers, support the machine's weight and guide the lower track chain. Effective maintenance is not complicated: keep the undercarriage clean, inspect for leakage and uneven wear, and maintain model-specific track tension. When a symptom appears, inspect the complete undercarriage before assuming that the roller alone is at fault.
Jul 15,2026
Hydraulic Track Press Guide: Operations, Tooling Replacement & Preventive Maintenance
Expert technical guide on hydraulic track pin presses. Learn about safe pressing operations, daily maintenance checklist, tooling alignment, and seal replacements.
Jul 15,2026
Heavy Equipment Track Chain & Link Guide: Wear Diagnosis, SALT Care & Replacement Standards
Expert guide on crawler excavator and bulldozer track chains and links. Learn about track link assembly wear patterns, pitch elongation, SALT chain care, and replacement criteria.
Jul 14,2026
Expert excavator undercarriage maintenance guide. Learn about daily crawler track frame cleaning, track sag adjustment, roller seal inspection, and cost reduction strategies.
Related Posts
How Should The Supporting Wheels Be Selected To Avoid Stepping On Thunder?
High-quality support wheels mainly depend on the performance of its steel. The material of the roller body is generally 50Mn, 40Mn2, (MN: synonymous with the element of manganese).
Carrier Wheels Are Suitable For Various Models At Home And Abroad
Sprocket wheels are mainly used in various crawler bulldozers, excavators, pavers, milling machines, rotary drilling rigs or other crawler machinery equipment at home and abroad.
Contact Us
E-mail :
sales@china-ysm.com
Phone/WhatsApp：
+86-18606961587
Address：
No.8 Binjiang Street, Binjiang Industrial Zone, Xiamei Town, Nan An City, Quanzhou City, Fujian Province, China
Request Quote
Andy Shi
No.8 Binjiang Street, Binjiang Industrial Zone, Xiamei Town, Nan An City, Quanzhou City, Fujian Province, China
Request Quote