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Our AAASTAND bearing facility is located in Zhenjiang, featuring advanced CNC machinery and precision grinding lines operated by experienced engineers.
With strict adherence to automotive and industrial standards, we ensure the reliability and precision of every bearing.
We serve industries including automotive, agriculture, mining, heavy machinery, robotics, and industrial automation, meeting demands for high precision, load capacity, and special sizes.
AAASTAND supports OEM and aftermarket clients, helping move from design to mass production with speed and quality assurance.
Our bearings are engineered for precision and durability, suited for demanding industries like automotive, agriculture, and industrial machinery. AAASTAND combines advanced materials with rigorous testing to ensure long service life and consistent performance.
We support OEM and aftermarket clients with tailored solutions and reliable supply chains.
Bearing Production Capabilities
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- Standard bearing specifications -
A wide inventory ensures quick dispatch and flexible supply for common applications.
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- Daily production capacity -
High-efficiency lines enable large-scale output while maintaining quality standards.
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- In-house production lines -
Independent workshops for turning, grinding, and assembly optimize lead time and cost.
Core Materials Used in Bearing Production
#1 Chrome Steel (GCr15 / 52100)
This is the most widely used material for general-purpose roller and ball bearings. It offers excellent hardness, wear resistance, and fatigue strength.
#2 Stainless Steel (440C / 304 / 316)
Used in food-grade, marine, and corrosion-sensitive environments. Provides moderate hardness with superior corrosion resistance.
#3 Ceramic (Silicon Nitride, ZrO₂)
Ideal for high-speed, low-friction, or magnetic-sensitive applications. Ceramic bearings are lightweight and offer high thermal resistance.
#4 Plastic & Composite Polymers
Used in low-load, lightweight, or chemically aggressive environments. Suitable for compact or special-purpose bearing systems.
#5 Brass / Polymer Cages
Cages may be made from brass, PA66, PEEK, or other engineering plastics based on speed, temperature, and lubricant compatibility.
Chrome Steel (GCr15 / 52100)
Stainless Steel (440C / 304 / 316)
Ceramic (Silicon Nitride, ZrO₂)
Brass / Polymer Cages
Plastic & Composite Polymers
Crafted from premium steels and refined through cutting-edge manufacturing, our bearings offer exceptional smoothness and longevity. Comprehensive inspections confirm reliability in diverse industrial and automotive environments.
Our bearings are primarily made from high-quality carbon steel and stainless steel, materials widely used for their strength and reliability. For specialized applications, we also incorporate advanced materials such as ceramic and high-grade alloy steel to enhance performance and durability. We employ state-of-the-art CNC machining, precision heat treatment, and automated assembly lines to ensure each bearing achieves optimal dimensional accuracy, smooth rotation, and extended service life. Comprehensive testing procedures including vibration analysis, fatigue testing, and sealing integrity inspections guarantee consistent quality in demanding industrial and automotive applications.
Key manufacturing highlights include:
Achieving micron-level tolerances for precise fits and reliable operation.
Enhancing hardness, wear resistance, and fatigue life of bearing components.
Ensuring uniform internal clearances to minimize friction and noise.
Including lifespan testing, vibration diagnostics, and sealing performance verification.
We supply a full range of existing OE parts and also manufacture customized automotive parts and bearings to meet your specific requirements.
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