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Research and Development Design

Our company has integrated the world‑leading transmission system simulation platform ROMAX (UK), the precision bearing engineering software MESYS (Switzerland), and the engineering simulation software ANSYS (USA) to build a digital R&D ecosystem:

Through collaborative innovation, the three platforms seamlessly integrate the “component–system” value chain, reducing the design cycle by 67% and achieving a 92% test‑pass rate.

Through multiphysics coupling—thermal–fluid–structural—and a closed-loop manufacturing process, our company’s bearing designs have achieved groundbreaking innovations in cutting-edge applications, including automotive gearbox systems (with a 1.5‑fold increase in service life), drone engine systems (with a five‑fold increase in lifespan), and fire‑rated door roller systems (with a three‑fold improvement in durability).

ROMAX (UK)

ROMAX specializes in general shaft‑system modeling, bearing‑structure optimization, and fatigue‑life analysis. By closely simulating real‑world operating conditions, it enables prediction of bearing behavior under various operating parameters—such as rotational speed, load, and temperature. These analyses help engineers select the appropriate bearing type, calculate bearing life, and evaluate bearing performance.

MESYS (Switzerland)

MESYS specializes in complex system modeling and bearing roller profile optimization, helping engineers design shaft systems that are both cost-effective and reliable by analyzing shaft‑system stress, deformation, and fatigue life.

ANSYS (USA)

ANSYS offers comprehensive static and dynamic analysis capabilities, enabling the simulation of rotating machinery under a wide range of operating conditions. This includes analyses of rotor dynamics, bearing dynamics, and shaft system dynamics. Through these analyses, engineers can optimize designs, reduce vibration, and enhance system stability and reliability.

Cage

The cage in a bearing serves to space and guide the rolling elements, and under normal operating conditions it does not itself bear any load. Depending on the specific application requirements, cage materials can include stamped steel, engineering plastics (such as PA66, PA46, PEEK, PPS, and phenolic bakelite), brass, and others. Furthermore, simulation analyses can be performed to evaluate the cage’s stress, deformation, and operational performance.
To address the increasingly high power density and extreme rotational speeds of next-generation high-speed electric drives, we conducted simulation analyses of the bearing cage under high-speed operating conditions, evaluating its deformation and stress levels. Based on these findings, we optimized both the material and structural design to minimize deformation at high speeds, enhance lubrication performance, and improve guiding accuracy. Currently, we hold two patents related to high-speed bearing cages.

Materials Innovation

Cage

Seal

Lubricating grease

Steel and Heat Treatment

Rolling element

Cage

Seal

It is composed of rubber and a reinforcing skeleton. Its primary function is to prevent the leakage of internal lubricant and the ingress of external contaminants, such as moisture and other media. Depending on the operating conditions, the choice of rubber will vary significantly; our company offers nitrile rubber (NBR), heat‑resistant nitrile (SNBR), acrylate (ACM), hydrogenated nitrile (HNBR), and fluoroelastomer (FKM) for different applications.

Lubricating grease

It is primarily composed of base oil, thickener, and additives. 1. Base oil is the main component of grease, typically accounting for more than 80% of its total weight. The viscosity of the base oil directly affects lubrication performance: in high-speed applications, low-viscosity greases are usually selected; for low-speed, heavy-load conditions, higher-viscosity greases are preferred; at elevated temperatures, increased viscosity is necessary to maintain an effective oil film, whereas at low temperatures, lower viscosity is required to reduce starting torque. Common types of base oils include mineral oils (low cost and widely applicable) and synthetic oils such as esters, silicone oils, polyalphaolefins (PAOs), polyphenyl ethers, and PFPE fluorinated oils. 2. “Complex barium-based” should be corrected to “composite barium-based.” 3. Functions: preventing direct contact between friction surfaces, reducing the coefficient of friction and wear; dissipating heat; providing vibration damping and noise reduction; and offering rust protection. Our company can provide recommendations for grease selection under long-term operating conditions ranging from -90°C to 260°C, as well as guidance on selecting plastic or solid lubricants for extremely low-temperature environments between -150°C and -90°C.

Steel and Heat Treatment

The quality of GCr15 bearing steel is the foundation for achieving low-noise, high-precision, long-life bearings. During operation, bearings endure extreme pressure and friction; therefore, bearing steels must exhibit high and uniform hardness, excellent wear resistance, and superior contact fatigue strength. Stringent requirements are imposed on the chemical composition’s homogeneity, the content and distribution of non-metallic inclusions, and the morphology of carbides—making this one of the most rigorously specified steel grades in all steel production. Superior heat treatment and grinding processes can generate appropriate residual compressive stresses near the surface, thereby enhancing bearing fatigue life.

Rolling element

Rolling elements for ball bearings include conventional steel balls, stainless steel balls, and ceramic balls. Rolling elements for roller bearings include cylindrical rollers, spherical rollers, tapered rollers, and needle rollers. As an intermediate component, it transmits loads through rolling motion between the inner and outer raceway tracks and converts sliding friction into rolling friction, thereby significantly reducing frictional resistance.
Surface hardening treatments: The selection of surface hardening processes is fundamentally aimed at addressing the insufficient service life of conventional steels or lubrication conditions under extreme operating conditions. Typical scenarios include elevated temperatures, oil starvation, corrosion, electrical erosion, and contamination by foreign particles, thereby extending system life and reducing maintenance costs.

Testing and experimentation

Bearing Life Test Laboratory

Currently, we are equipped with a micro‑bearing high‑speed test rig (≤52,000 rpm), a small‑bearing life‑enhancement test rig, a high‑speed bearing life test rig (≤30,000 rpm), a high‑speed temperature‑controlled bearing life test rig (electrically driven, ≤30,000 rpm), a heavy‑load bearing life test rig, as well as low‑speed and vertical test stands. These facilities are primarily used for bearing performance testing, operating‑condition experiments, and life‑enhancement tests. They enable verification of bearing limit speeds, heavy‑load performance, rapid acceleration and deceleration, alternating high‑and‑low temperature shock, high‑temperature performance, and fatigue life. Additionally, they support assessments of grease’s high‑and‑low temperature properties, vibration‑induced grease leakage, and the high‑speed strength of retainers.

Salt Spray Test Chamber

Workwear

High-low temperature test chamber

Testing and experimentation

As an essential component of quality control, inspection and testing has long been a key focus for Chichuang. Routine testing primarily covers bearing dimensions, clearance, noise, and specialized performance characteristics. Precision testing, on the other hand, is dedicated to assessing bearing geometry, surface roughness, elemental composition, material properties, and hardness. Based on the results of these inspections and tests, we collect, analyze, and track any anomalies encountered during the process, continuously enhancing product quality and manufacturing standards.