High quality excavator track roller, link assembly and full undercarriage parts OEM service. Check part dimensions, replacement models & wear resistance comparison. Custom parts available for Kubota, Bobcat and more. Get custom quotes now.
Excavator undercarriage parts are the core wear-resistant components that decide the working performance and service life of construction machines. Among all undercarriage products, track roller, top roller, idler, sprocket and track chain assembly are the most frequently replaced spare parts for dealers, repair shops and construction contractors across Europe and America. If you are looking for a reliable OEM manufacturer of track roller and complete undercarriage parts, our factory can meet your bulk order and customized requirements.
Part Dimension Specifications
We keep complete dimension files for every product. For example, our standard track roller for Kubota mini excavator: outer diameter 110mm, shaft diameter 45mm, overall length 182mm, unit weight 7.6kg, mounting hole spacing 136mm. We can provide full dimension drawings, tolerance data and weight sheets for all items. These data help you confirm fitting before order and build your own product catalog easily.
Replacement Models
Our undercarriage parts are direct replacement models for many mainstream machine brands. Our track rollers fit Kubota KX161, Bobcat E50, CAT 305, Komatsu PC55 and other popular mini excavator models. Send us your machine model or original OEM part number, our technical team will cross-check and match the correct spare part quickly. We maintain a large part number database for fast model verification.
Wear Resistance Comparison
Many cheap track rollers use ordinary casting without deep heat treatment. Their surface hardness is low, so they wear quickly when working on rocky or muddy sites, leading to frequent replacement. Our track rollers adopt medium frequency quenching. The hardened surface reaches HRC 52-58. In field wear comparison, our rollers have 2~3 times longer service life than common low-cost rollers. Less wear means less downtime and lower maintenance cost for your end customers. Every finished roller will go through hardness test and dimension inspection before packing.
OEM Custom Service
We offer full OEM custom service. You can provide samples or technical drawings for us to develop new parts. Our engineers can adjust material formula, outer size, shaft structure as your request. We support custom logo marking, customized packing and special tolerance requirements. Mixed container orders are welcome. You can combine different undercarriage items in one shipment to save sea freight cost.
We offer sample testing service for new customers. You can test the quality, check dimensions and verify wear performance before bulk purchase. We understand overseas buyers value stable lead time and consistent quality more than only low prices. After order confirmation, we update production progress regularly. Our sales team gives fast replies and professional model matching support.
Whether you need standard replacement track rollers or custom OEM undercarriage components, feel free to contact us. Send your machine model number or part drawing, we will prepare a detailed quotation for you.
Post time: Sep-09-2026