-
-
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.
-
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.
-
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
Aug 10,2026
Bulldozer Grouser Wear: How to Inspect Track Shoes and Traction Loss
Bulldozer grousers provide the raised steel edge that penetrates the ground and transfers pushing force. As grouser height and profile wear away, traction can fall, but poor performance should not be blamed on the shoes alone. Ground condition, track tension, chain wear, packed material, operator technique and machine balance can create similar symptoms. A reliable inspection compares several shoes, both track sides and the complete undercarriage under the same conditions.
Aug 10,2026
Cat 320 Excavator Undercarriage Parts Guide: What to Confirm Before Ordering
A request for “Cat 320 undercarriage parts” is a useful starting point, but it is not enough to confirm a track roller, carrier roller, front idler, sprocket, track chain or track shoe. The 320 name appears across different generations and configurations, including 320, 320 GC, 320C/320C L and 320D references in Caterpillar's current parts material. Accurate sourcing therefore begins with the complete model suffix, serial number or PIN, existing part number, photographs and dimensions.
Aug 07,2026
Excavator Hot-Weather Maintenance Checklist: Cooling, Hydraulics and Undercarriage
High ambient temperature reduces the margin available to an excavator's cooling system, while dry dust can restrict airflow, contaminate inspection surfaces and accelerate undercarriage abrasion. A useful hot-weather plan is not a single coolant check: it combines a safe pre-shift walk-around, clean heat exchangers, correct fluids and filters, hydraulic monitoring, undercarriage care and a clear response to warning indicators.
Aug 07,2026
How to Measure an Excavator Track Roller Before Ordering
An excavator track roller can look correct in a photograph and still fail to fit the track frame, mounting holes or chain geometry. The safest ordering method starts with the machine identity and part number, then uses a consistent set of roller and mounting dimensions as confirmation. This guide explains which measurements matter, where common mistakes occur and what to send to a supplier before a replacement is approved.
Aug 06,2026
Bulldozer Undercarriage Maintenance in Rocky Ground: Impact-Wear Checklist
A bulldozer working on blasted rock, shale, gravel or quarry floors exposes its undercarriage to repeated impact, abrasion and side loading. The damage does not stay in one component: track shoes, links, bushings, sprocket segments, rollers and idlers work as a system. This guide explains what operators and maintenance teams should inspect, how to read common wear patterns and what information a parts supplier needs before confirming fitment.
Aug 06,2026
Excavator Track Group vs Track Chain: What Is the Difference?
An excavator track chain is the articulated link, pin and bushing assembly that runs around the sprocket, rollers and idler. A complete track group normally adds the correctly matched track shoes and shoe hardware to that chain. The terms are sometimes used differently in quotations, so buyers should confirm the exact supply scope, chain design, link count, pitch, shoe width, mounting pattern and master connection instead of relying on a product name alone.
Aug 05,2026
Bulldozer Track Link Scalloping: Causes, Vibration and Inspection
Track link scalloping is a repeating uneven-wear pattern on the rail tops of a bulldozer chain. Instead of presenting a relatively even running surface to the bottom rollers, consecutive link rails develop high and low areas. The machine may vibrate as rollers pass over the pattern, but vibration alone does not prove scalloping. Track tension, rail measurements, roller and idler contact, chain pitch, alignment and application all need to be checked before deciding on chain work.
Aug 05,2026
Excavator Track Roller Oil Leak or Normal Sweating? Inspection Guide
A dark mark around an excavator track roller does not always prove that the roller has failed. A small amount of lubricant can sometimes leave a thin, dust-bound trace near a floating seal, while a true leak stays wet, returns after cleaning or develops into drops. The correct decision comes from a repeatable inspection of the clean roller, its rotation, temperature, tread and flange wear, mounting, track-chain contact and the rest of the undercarriage—not from one dirty photograph.
Aug 04,2026
Bulldozer Track Chain Snaking: Causes, Inspection and Repair Planning
A bulldozer track chain should articulate around the undercarriage while remaining laterally controlled. When an unloaded chain looks wavy from above, or the chain repeatedly wanders across roller and idler flanges, technicians may describe it as a snaking track. Snaking is a symptom—not a complete diagnosis. Joint clearance, link fit, alignment, structural damage and previous rebuilding all need to be separated before deciding whether to turn pins and bushings, rebuild the chain or replace a larger matched group.
Aug 04,2026
Excavator Undercarriage Mud Packing: Why Tracks Tighten and Wear Faster
Wet clay packed into an excavator undercarriage is more than a cleaning problem. Material can occupy the working clearance around the track chain, rollers, idler and sprocket, making the track behave tighter as the shift continues. It can also hide loose hardware, restrict a roller, add abrasive slurry and prevent a useful walkaround. The right response is to clean safely, inspect the complete system and check tension by the exact machine procedure—not to release grease or replace one part on sight.
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