Carrier Roller
- Professional carrier roller design and manufacturing
- Competitive prices
- Support extremely cold and hot working conditions
- Over 200 models of carrier rollers are available for all brands
- Support excavator carrier rollers with a rail surface diameter of 28-98mm
- Supports single flange and double flange bulldozer carrier rollers with shaft diameters ranging from 41 to 127mm
Characteristics of Carrier Roller
By applying anti-interference and anti loosening technology, intelligent advanced heat treatment technology, and a circulating design structure for the lubricating medium on the inner wall of the bearing, the wear resistance and service life of the carrier roller are significantly improved.

Terris Carrier Roller Craftsmanship
Carrier roller body: the half wheel body is quenched and tempered after forging, and the tread is quenched to ensure sufficient hardened layer depth and improve service life;
Shaft: Made of high-quality alloy steel, surface quenched and tempered, and polished after grinding the sliding working surface to achieve effective surface roughness and control temperature rise during operation;
Bushing bronze : The wheel system product of large tonnage excavators uses high-strength brass shaft sleeves to enhance the load-bearing capacity of the wheels;
Shaft seat: made of high-strength ductile iron or cast steel material, formed by precision casting, and ground after precision machining of the thrust surface to obtain good surface roughness, reduce working temperature and wear;
Floating oil seal: Designed with high wear resistant floating seal ring material, the grinding working surface is finely ground and polished. After hardness and strength testing, the floating seal rubber ring is subjected to high-temperature aging and compression deformation tests to ensure that all technical indicators of the rubber ring meet the adaptability requirements of working conditions;
Oil product: Select oil products according to the actual working conditions of the host to meet various complex working conditions such as extreme cold and high temperature.
Supply Range
Undercarriage parts for excavators with a pitch ranging from 90mm to 317mm and bulldozers with a pitch ranging from 135mm to 317mm




- KOMATSU Carrier Roller
- CATERPILLAR Carrier Roller
- HITACHI Track Carrier Roller
- VOLVO Carrier Roller
- LIEBHERR Carrier Roller
- KOBELCO Carrier Roller
- DOOSAN Carrier Roller
- LiuGong Carrier Roller
- SDLG Carrier Roller
- SANY Carrier Roller
- XCMG Carrier Roller
- HYUNDAI Carrier Roller
- SUMITOMO Carrier Roller
Why choose Terris?

It is the first in China to create a multi-body dynamics model for crawler chassis, integrating DOE simulation/rigid-flexible coupling/meta-analysis technology, and providing full working condition analysis. Master the core design of the floating oil seal for the track roller, build a simulation test platform, and the product verification capability is internationally leading.

Possessing hot-die forging + simulation technology to produce high-precision forgings; Special alloy steel + intelligent heat treatment to enhance performance; Online monitoring + tool compensation ensures precise machining; Fully automatic assembly + real-time monitoring to ensure quality, adaptable to multiple working conditions.

Establish physical and chemical/mechanical/reliability laboratories, equipped with spectrometers and other devices; Our professional quality inspection team conducts a full inspection of the raw material composition/structure and the microscopic/mechanical properties after the manufacturing process, providing double guarantees for quality compliance.

We focus on global high-end OEM mainframe support and are committed to providing complete solutions for the aftermarket of large-tonnage mining equipment. This includes brands such as LIEBHERR, HITACHI, and HYUNDAI.

Digitize and develop high-end process equipment to build a safe, efficient and intelligent cluster. Flexible lines cover the entire process of hot-die forging, heat treatment, welding, etc., integrate intelligent equipment, and build a stable and traceable intelligent manufacturing system.

Supports all working conditions, all weather conditions, OEM, large tonnage, full set customization. The development cycle from product design, testing to verification is 45-60 days.
Production Process
Terris innovates high-end manufacturing based on digital technology, builds an intelligent process system, and integrates key technical links such as hot-die forging, heat treatment and welding through fully automated production lines to create a highly safe, flexible and traceable intelligent production solution.

Technical System
By establishing the industry’s first multi-body dynamics analysis system for crawler chassis, integrating DOE simulation, stress distribution analysis and load modeling technologies, the reliability design under all working conditions was completed. We independently developed the floating oil seal technology, built a simulation working condition test platform, and achieved efficient verification of the performance and service life of gear train products. Our test capabilities have reached the international advanced level.
Process Integration
With fully automatic hot-die forging and simulation technology as the core, high-quality forgings are produced. Customized special alloy steel is matched with intelligent heat treatment processes to optimize product performance. Efficient and precise processing is achieved through online monitoring and tool compensation. Combined with the fully automatic assembly of track rollers and the parameter perception system, a full-chain quality assurance system from materials to finished products is constructed.


Laboratory Capacity
Terris has established a laboratory system for physical and chemical, mechanical and reliability testing, equipped with high-end devices such as direct reading spectrometers and metallographic microscopes, and formed a professional quality inspection team to achieve full-index analysis of raw material composition, microstructure defects, hardenability, etc. It also conducts full-process monitoring of the microstructure and mechanical properties of materials after hot working to ensure that product performance meets the standards.