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Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Specifications
Place of Origin :
Sihong, China
Brand Name :
Sunzo
Certification :
CE/IATF16949/45001/14001/9001
MOQ :
Negotiable
Price :
Negotiable
Packaging Details :
Carton
Delivery Time :
Negotiable
Payment Terms :
Negotiable
Material composition :
Ni-52%, Cr-19%, Fe-18%, Nb-5%
Operating temperature :
-270°C to 650°C
Peak temperature :
800°C
Tensile strength :
1400 MPa
Young's modulus :
180 GPa
Fatigue life :
10⁷ cycles
Preload force variation :
±5%
Load multiplication :
4-5x
Load distribution variance :
±3%
Surface coating thickness :
8-12μm
Salt spray resistance :
1500+ hours
Tolerance class :
IT5
Dimensional tolerance :
±0.02mm
Groove depth ratio :
0.4
Radial stress reduction :
30%
Surface hardness :
HV 500-550
Maximum RPM :
15,000 RPM
Maximum load :
800 kN
Stack configuration :
2-6 discs
Vibration frequency range :
10-2000Hz
Description
Inconel718 Bearing Disc Spring - High-temperature Resistant for Aerospace Bearing Preload
Aerospace high-temperature bearing systems—including aircraft turbine engines (e.g., CFM56, LEAP series), satellite reaction wheels, and rocket propulsion assemblies—operate under extreme thermal cycling (-270°C to 650°C), high vibration (10-2000Hz), and corrosive atmospheric conditions. Our Inconel718 Bearing Preload Disc Spring is engineered as a mission-critical elastic component to address these challenges.
Product Configurations
  • Grooved Series: For high-speed precision applications up to 15,000 RPM
  • Grooveless Series: For heavy-load static applications up to 800 kN
  • Precision: Annular geometry with tolerance class IT5 (±0.02mm on critical dimensions)
Key Performance Metrics
Parameter Performance Specification
Thermal Stability Sustains continuous operation at 650°C (peak 800°C); retains 80% tensile strength at 500°C, 70% at 650°C
Fatigue Resistance Exceeds 10⁷ cycles at 40% ultimate strength; maintains stable preload force (±5% variation)
Load Multiplication 4-5x force output in parallel stacks (2-6 discs); uniform load distribution (±3% variance)
Material & Surface Engineering
Constructed from Inconel718 superalloy (Ni-52%, Cr-19%, Fe-18%, Nb-5%) with proprietary heat treatment cycle (solution annealing at 980°C + double aging at 720°C/620°C) to form γ" precipitates. Dacromet surface treatment (zinc-aluminum flake coating, 8-12μm thickness) provides superior oxidation resistance, passing 1500+ hours of neutral salt spray testing (ASTM B117).
Application-Specific Optimizations
  • Turbine Engine Bearings: Grooved series with 6 equidistant radial grooves reduces radial stress by 30% during high-speed rotation
  • Satellite Bearings: Grooveless design with shot-peened surfaces (HV 500-550) enhances resistance to micro-vibration-induced fatigue
Additional Technical Data Available: Preload force calibration data for specific engine models (e.g., GE9X) and thermal shock test results (1000 cycles between -200°C and 600°C).
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Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace

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Product Detail
Place of Origin :
Sihong, China
Brand Name :
Sunzo
Certification :
CE/IATF16949/45001/14001/9001
MOQ :
Negotiable
Price :
Negotiable
Packaging Details :
Carton
Contact Supplier
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace
Inconel718 Bearing Spring High Temperature Resistant Alloy For Aerospace

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Verified Supplier
1 Years
nanjing
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Main Products :
DIN 2093 Disc Spring, Single Turn Wave Spring, DIN 6796 Washer
Total Annual :
1.2M-1.4M
Employee Number :
160~200
Certification Level :
Verified Supplier
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