JimaFor
| Packaging Details | Standard Export Package |
| Product Name | Precision Waterjet-Cut Stainless Steel Bearing Rings (440C) | ±0.05mm Tolerance | HRC 58-60 Hardness |
| Sample | Free supply |
| Applications | Marine & Offshore: Propulsion systems, saltwater-resistant assemblies. Medical Devices: Precision surgical tools, imaging equipment. Energy: Wind turbine bearings, oil & gas drilling components. |
| Manufacturing Processes | Waterjet Cutting,Heat Treatment,Precision Machining |
| Brand Name | JIMAFor |
| Certification | ISO9001-2008,SGS,ROHS. |
| Place of Origin | CHINA |
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Product Specification
| Packaging Details | Standard Export Package | Product Name | Precision Waterjet-Cut Stainless Steel Bearing Rings (440C) | ±0.05mm Tolerance | HRC 58-60 Hardness |
| Sample | Free supply | Applications | Marine & Offshore: Propulsion systems, saltwater-resistant assemblies. Medical Devices: Precision surgical tools, imaging equipment. Energy: Wind turbine bearings, oil & gas drilling components. |
| Manufacturing Processes | Waterjet Cutting,Heat Treatment,Precision Machining | Brand Name | JIMAFor |
| Certification | ISO9001-2008,SGS,ROHS. | Place of Origin | CHINA |
| High Light | Precision Waterjet Cutting Services ，Stainless Steel Bearing Rings ，HRC 58 Bearing Rings | ||
Precision Waterjet Cut Stainless Steel Bearing Rings (440C) ±0.05mm Tolerance HRC 58-60 Hardness
1, Product Overview:Our Waterjet-Cut Stainless Steel Bearing Rings are engineered for high-performance applications demanding extreme precision, durability, and resistance to harsh environments. Crafted from premium 440C stainless steel and manufactured using advanced waterjet cutting technology, these bearing rings are ideal for critical industrial, automotive, aerospace, and marine applications. With an ultra-tight inner diameter tolerance of ±0.05mm and exceptional hardness (HRC 58-60),
2, Features & Performance Specifications
✅ Superior Material Properties
Material: 440C Martensitic Stainless Steel
Hardness: HRC 58-60 (Heat-Treated for Optimal Wear Resistance)
Corrosion Resistance: Excellent resistance to rust, oxidation, and chemical exposure, suitable for humid, marine, or high-stress environments.
Strength: High tensile strength (up to 1,900 MPa) and fatigue resistance for heavy-load applications.
✅ Precision Manufacturing • Inner Diameter Tolerance: ±0.05mm . • Outer Diameter & Thickness Tolerance: Customizable to ±0.1mm . • Process: Waterjet cutting technology eliminates thermal distortion, ensuring burr-free edges and dimensional stability. • Surface Finish: Smooth, polished surfaces (Ra ≤0.8μm) to minimize friction and wear.
✅ Technical Specifications
Size Range: Customizable from 20mm to 500mm inner diameter.
Standards Compliance: ISO 9001, ASTM A276, RoHS.
3, Core Advantages
✅ Unmatched Precision
Waterjet cutting guarantees micron-level accuracy (±0.05mm ID tolerance), critical for high-speed bearings and precision machinery.
✅ Zero Heat-Affected Zone (HAZ)
Unlike laser or plasma cutting, waterjet technology prevents thermal stress, preserving the material’s integrity and hardness.
✅ Exceptional Durability
440C stainless steel’s HRC 58-60 hardness ensures resistance to abrasion, galling, and deformation under extreme load
✅ Fast Turnaround & Customization
Flexible production for small to large batches, with rapid prototyping and tailored dimensions.
✅ Eco-Friendly Process
Waterjet cutting uses minimal waste and no hazardous emissions, aligning with global sustainability standards.
4, Applications
Our bearing rings are trusted in industries requiring reliability under stress:
Aerospace: Landing gear systems, turbine components.
Automotive: High-performance engines, transmission systems.
Industrial Machinery: Robotics, CNC equipment, hydraulic presses.
Marine & Offshore: Propulsion systems, saltwater-resistant assemblies.
Medical Devices: Precision surgical tools, imaging equipment.
Energy: Wind turbine bearings, oil & gas drilling components.
5, Certifications & Compliance
ISO 9001:2015 Certified Manufacturing
Material Test Reports (MTRs) Available
RoHS & REACH Compliant
6, Manufacturing Processes
| Process Stage | Technical Content | Purpose |
| 1. Waterjet Cutting | Ultra-high-pressure waterjet (6,000 Bar) with abrasives cuts plates/bars into ring blanks. | Rapid near-net shaping, achieving ±0.1mm initial accuracy with no thermal deformation. |
| 2. Heat Treatment | Vacuum quenching (1,040-1,060°C) + Low-temperature tempering (150-370°C). | Achieve target hardness (HRC 58-60) and eliminate internal stresses. |
| 3. Precision Machining | CNC grinding machines for inner diameter finishing (±0.05mm tolerance) + polishing (Ra ≤0.8μm). | Finalize dimensional accuracy and surface smoothness for seamless assembly. |
7, Comparison with Traditional Process Chains
| Process Type | Typical Process | Application Scenarios | Limitations (vs. This Product) |
| Forging + Machining | Forging blank → Rough machining → Heat treatment → Finishing | High-strength components in mass production (e.g., gears, shafts) | Large heat-affected zone, difficult tolerance control (±0.1mm or above), high cost |
| Casting + Machining | Casting → Sand cleaning → Heat treatment → Finishing | Complex-shaped components (e.g., casings, brackets) | Risk of porosity, rough surface, low precision (±0.2mm or above) |
| Stamping + Machining | Stamping → Deburring → Finishing | Thin-walled parts and standardized components (e.g., gaskets, flanges) | Suitable only for simple shapes, high mold cost, limited material hardness |
| This Product's Process | Waterjet cutting → Heat treatment → Precision machining | High-hardness, high-precision, small-batch customized components | Advantages: No thermal deformation, ±0.05mm tolerance, hardness retention |
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2011
Total Annual:
10000000-15000000
Employee Number:
300~500
Ecer Certification：
Verified Supplier
JimaFor provides professional R & D services and customized production of high - end components Our main business specializes in the R & D and custom production of high - end metal components, catering to the needs of various industries and focusing on complex and challenging products. ... JimaFor provides professional R & D services and customized production of high - end components Our main business specializes in the R & D and custom production of high - end metal components, catering to the needs of various industries and focusing on complex and challenging products. ...
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