1、 Core Advantages
Innovate grease lubrication technology
It adopts customized high-performance grease, which has excellent low-temperature fluidity and high-temperature stability, achieving long-lasting lubrication in a vacuum environment and reducing friction loss.
The oil formula has passed the vacuum compatibility test, with an extremely low volatility rate, avoiding contamination of the vacuum system and meeting the strict requirements of ultra-high vacuum environments.
Ultra-low vibration performance
The precision bearing structure design combined with dynamic balance optimization technology significantly reduces operational vibration, enhances the operational stability of the turbomolecular pump, and minimizes interference with precision instruments such as semiconductor equipment and surface analysis instruments.
Extremely long service life
The combination of high-precision manufacturing processes and high-quality materials (such as high-purity bearing steel and corrosion-resistant coatings) results in excellent wear resistance, with a service life that is over 30% longer than that of traditional bearings, reducing maintenance costs and downtime.
Zero-pollution characteristic
All components have passed the vacuum environment adaptability verification, with no risk of particle shedding, ensuring the internal environment of the turbomolecular pump is clean and meeting the ultra-high cleanliness requirements of the semiconductor, optoelectronic and other industries.
2. Performance parameters
Parameter |
Upper Bearing |
Lower Bearing |
Bearing Type |
Angular Contact Ball (40° contact angle) |
Deep Groove Ball |
Inner Dia.(mm) |
40±0.002 |
35±0.002 |
Outer Dia.(mm) |
80±0.003 |
72±0.003 |
Width(mm) |
18±0.1 |
17±0.1 |
Precision Grade |
P4 |
P5 |
Max Speed(rpm) |
15,000 |
12,000 |
Lubrication |
Special high-temperature grease |
Special high-temperature grease |
Dynamic Load(kN) |
25.6 |
22.4 |
Material |
GCr15 bearing steel + special heat treatment |
GCr15 bearing steel + special heat treatment |
3. Specialized High-Precision Bearings for KYKY FF250/1500 - Breaking Through Vacuum Equipment Performance Limits
In semiconductor manufacturing, photovoltaic coating and other advanced fields, KYKY FF250/1500 turbomolecular vacuum pumps face bearing wear challenges from continuous high-speed operation. Conventional bearings typically show performance degradation after 8,000 hours, affecting vacuum levels and equipment stability. Our specialized high-precision bearings extend service life beyond 15,000 hours through material innovation and process optimization.
High-precision grease-lubricated bearings specifically engineered for KYKY FF250/1500 turbomolecular vacuum pumps, significantly improving stability and service life during continuous high-speed operation. Includes detailed technical specifications, application cases, and professional Q&A.
Specialized bearings for KYKY FF250/1500 vacuum pumps feature optimized design and precision manufacturing to solve bearing wear issues in prolonged high-speed operation. Provides complete technical data, customer cases, and 10 FAQs for industrial reference.
At a wafer foundry running KYKY FF250/1500 pumps 24/7, original bearings lasted only 9 months on average. After switching to specialized precision bearings:
Average service life extended to 22 months
Vacuum level fluctuation reduced by 68%
Annual maintenance cost per unit decreased by ¥150,000
Unexpected downtime incidents reduced by 83%
Q: What are the key advantages over standard bearings?
A: Uses vacuum-degassed steel (impurities ≤0.001%); special heat treatment achieves HRC62-64 hardness; precision machining ensures roundness ≤0.5μm.
Q: How to determine when replacement is needed?
A: Replace when: ① Vibration >3.5mm/s ② Noise increase >5dB ③ Vacuum fluctuation >10% ④ Abnormal temperature rise >15℃.
Q: Any special installation requirements?
A: Must use hydraulic tools in clean environment (≤Class 100), followed by 8-hour low-speed run-in (≤3000rpm).
Q: What's the grease replenishment interval?
A: Normal conditions: replenish every 6000 hours, complete replacement every 12000 hours. High-temp (>80℃) environments reduce intervals by 30%.
Q: Are different preload options available?
A: Light (20N), medium (40N default), and heavy (60N) preload versions.
Q: How to protect bearings during power failures?
A: Recommend backup power modules to ensure minimum 5-minute slowdown lubrication.
Q: What's the lead time?
A: Standard models 7 days, custom orders 15 days, expedited 72-hour service available.
Q: Compatibility with other pump brands?
A: Tested compatible with Edwards/Pfeiffer equivalents (dimensional tolerance ≤0.005mm).
Q: How to verify authenticity?
A: Each bearing has laser anti-counterfeiting code verifiable on our website, with 3-year traceability.
Q: How to address abnormal vibration?
A: Immediately check: ① Rebalance ② Verify shaft fit ③ Eliminate external vibration sources ④ Contact support if needed.
Summary: Through innovative lubrication technology and precise design, this product provides the core guarantee of "low vibration, long service life and zero pollution" for the KYKY FF250/1500 series turopecular pumps, making it an ideal choice for the stable operation of ultra-high vacuum systems.
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