Complete guide to genuine KYKY FF100/300 corrosion-resistant bearings for turbo molecular pumps, including technical specs, case studies and 10 FAQs for optimal vacuum performance.
This technical resource covers everything about KYKY OEM FF100/300 turbo molecular pump bearings - from precision specifications to maintenance best practices and real-world application cases.
KYKY FF100/300 bearings, turbo molecular pump OEM bearings, corrosion resistant vacuum bearings, KYKY genuine parts, molecular pump bearing replacement, vacuum equipment bearings, FF300 bearing specifications, vacuum pump maintenance
Genuine KYKY FF100/300 Grease-Lubricated Bearings offer unmatched performance:
100% OEM quality guarantee for perfect FF100/FF300 pump compatibility
Special corrosion-resistant treatment for harsh vacuum environments
Extended lubrication intervals (50%+ longer service life)
Precision manufacturing ensures smooth high-speed operation
Parameter |
Upper Bearing (KYK-BU100) |
Lower Bearing (KYK-BL300) |
Bearing Type |
Angular Contact Ball Bearing |
Deep Groove Ball Bearing |
Inner Dia. (mm) |
18±0.002 |
25±0.003 |
Outer Dia. (mm) |
40±0.005 |
47±0.005 |
Max Speed (RPM) |
65,000 |
35,000 |
Dynamic Load (kN) |
6.8 |
9.2 |
Lubrication |
PFPE-based special grease |
Same |
Temp. Range (°C) |
-40~150 |
-40~150 |
Material |
Ceramic balls + stainless steel (PTFE coating) |
Full stainless steel (PTFE coating) |
Case 1: PV Coating Production
After replacing 35 sets of FF300 pump bearings with genuine KYKY units:
✓ MTBF increased from 11,000 to 22,000 hours
✓ OEE improved by 28%
✓ Annual maintenance savings: ¥420,000
Case 2: Synchrotron Facility
For FF100 pumps in national research facility:
Ultimate vacuum restored to 2×10⁻⁷Pa
Vibration stabilized below 0.15mm/s
18+ months continuous operation without degradation
Q1: OEM vs aftermarket bearing differences?
A: Genuine bearings use proprietary materials and manufacturing standards, offering 2-3x longer service life with better precision and corrosion resistance.
Q2: Corrosion resistance verification?
A: Tested per ASTM B117 - 500 hours in 5% NaCl solution at 35℃ with zero visible corrosion.
Q3: Post-installation vacuum issues?
A: Check: 1) Correct installation orientation 2) Seal integrity 3) System leaks 4) Allow 72+ hours run-in period.
Q4: Bearing failure warning signs?
A: Key indicators: Vibration spike (>0.5mm/s), abnormal noise, >10℃ temperature rise, vacuum fluctuations >15%.
Q5: Recommended spare parts inventory?
A: Critical systems should maintain 20% spare inventory. Basic recommendation: 1 full set per pump + 3 sets for 5-10 pump systems.
Preventive Maintenance Program:
Daily: Record baseline temperature/vibration
Monthly: Spectral analysis for early fault detection
Quarterly: Professional cleaning/assessment
Annual: Complete disassembly inspection
Technical Upgrade Option:
New NANO series bearings provide:
✓ 15% higher speed capacity
✓ 30% extended service life
✓ 2-grade better corrosion resistance
For technical datasheets or purchasing information, please contact our engineering support team available 24/7.
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