The performance, reliability, and service life of industrial bearings start with the selection of raw materials.
At Wafangdian JinYu Bearing Manufacturing, we use high‑quality bearing steels and alloy materials to manufacture reliable bearings for heavy‑duty applications, including steel mills, mining equipment, gearboxes, energy systems, and other industrial machinery.
Why Raw Materials Matter in Bearing Manufacturing
Bearings operate under continuous loads, high contact stress, vibration, and harsh working environments.
The quality of raw materials directly affects important performance factors such as load capacity, fatigue life, wear resistance, and dimensional stability.
By selecting suitable steel grades and applying strict heat treatment and machining processes, WJY Bearing ensures that every bearing delivers reliable performance in demanding industrial applications.
Raw Materials and Manufacturing Capability at WJY Bearing
Main Raw Materials Used in WJY Bearing Manufacturing
Bearing Steel (GCr15 / 100Cr6)
GCr15 and 100Cr6 high carbon chromium bearing steels are among the most commonly used materials in rolling bearing manufacturing.
After precision heat treatment, these steels provide excellent hardness, wear resistance, dimensional stability, and rolling contact fatigue performance.
They are widely used for standard industrial bearings requiring long service life and stable operation.
Common products using this material include:
Spherical Roller Bearings,
Cylindrical Roller Bearings,
and
Tapered Roller Bearings.
Case Carburizing Steels
Case carburizing steels are selected for applications requiring high impact resistance, heavy load capacity, and excellent surface durability.
Through carburizing and heat treatment, the bearing surface obtains high hardness and wear resistance, while the inner core maintains strong toughness to withstand impact loads.
These materials are especially suitable for large industrial bearings such as:
Backing Bearings,
Four Row Cylindrical Roller Bearings,
and heavy‑duty rolling mill bearings.
Silicon Manganese Steels
Silicon manganese steels improve strength, hardenability, and resistance to fatigue under demanding operating conditions.
They are commonly used for large‑size bearings working under vibration, shock loads, and changing operating conditions.
Typical applications include:
Spherical Roller Bearings,
Vibrating Screen Bearings,
and bearings used in mining and construction equipment.
18MND5 / 18MnMo5 Alloy Steel
18MND5 (18MnMo5) is a low‑alloy manganese‑molybdenum steel known for its high strength, toughness, and resistance to heavy mechanical stress.
This material is suitable for customized large bearings and special industrial applications where high reliability and structural strength are required.
Typical applications include:
Slewing Bearings,
large machinery, and customized bearing solutions.
Stainless Steel and Special Alloy Materials
For applications requiring corrosion resistance, extreme temperature performance, or special operating conditions, WJY Bearing can provide solutions using stainless steel and customized alloy materials.
These materials are suitable for specialized equipment in industries such as food processing, chemical machinery, and other demanding environments.
Material Quality Control at WJY Bearing
High‑quality bearings require strict control from the beginning of production.
At WJY Bearing, incoming raw materials are inspected to ensure chemical composition, hardness, and mechanical properties meet manufacturing requirements.
Combined with advanced machining equipment, professional heat treatment technology, and complete quality inspection procedures, our bearings provide dependable performance for customers worldwide.
Reliable Bearing Solutions from WJY Bearing
From raw material selection to final inspection, Wafangdian JinYu Bearing Manufacturing focuses on every detail of bearing production.
With high‑quality steel materials, professional manufacturing experience, and customized engineering support, WJY Bearing supplies reliable bearing solutions for rolling mills, mining equipment, energy systems, and heavy industries worldwide.
