KYKY molecular pump bearings

Professional Guide for KYKY FF63/80 Grease Lubricated Turbo Molecular Vacuum Pump Bearings

KYKY FF63/80 specialized grease-lubricated bearings utilize advanced materials and processes for high vacuum environments. Includes detailed technical parameter tables, real-world application cases and 10 professional Q&As to help users improve vacuum pump performance and extend service life.

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Product Details

Comprehensive technical specifications, performance advantages, application cases and 10 FAQs about KYKY FF63/80 grease-lubricated turbo molecular vacuum pump bearings, providing professional bearing solutions for industrial users.

turbo molecular pump bearings, vacuum pump upper/lower bearings

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Technical Specifications of KYKY FF63/80 Grease-Lubricated Vacuum Pump Bearings

Core Product Advantages

KYKY FF63/80 specialized bearings feature:

Ultra-high rotation stability (≤1μm radial runout)

Extreme vacuum compatibility (10⁻⁷Pa level)

Excellent temperature resistance (-50℃~+180℃)

Extended service life (≥30,000 hours)

Detailed Technical Parameters

Specification	Upper Bearing (FF63/80-U)	Lower Bearing (FF63/80-L)
Inner Diameter	40mm	63mm
Outer Diameter	80mm	125mm
Width	18mm	24mm
Speed Limit	12,000rpm	8,000rpm
Dynamic Load	28.5kN	45.6kN
Static Load	15.2kN	32.8kN
Grease Type	PFPE perfluoropolyether	PFPE perfluoropolyether
Material Technology	Silicon nitride hybrid	Ultra-pure bearing steel
Vacuum Compatibility	≤5×10⁻⁸Pa	≤5×10⁻⁸Pa
Vibration Grade	V4 class	V3 class

Success Case Study

Semiconductor Wafer Fabrication Project
After 18 months operation of 20 FF63/80 vacuum pumps in a 12-inch wafer fab:

Vacuum level improved to 8×10⁻⁷Pa (from 5×10⁻⁶Pa)

Energy consumption reduced by 15%

MTBF extended to 9,000 hours

Annual maintenance cost saved ¥230,000

Top 10 Professional FAQs

Q1: What fundamentally differentiates FF63/80 bearings from standard bearings?
A: Aerospace-grade materials, special sealing and vacuum-specific grease with 30+ superior parameters including material purity (≤0.1μm particles) and outgassing rate (≤10⁻¹¹Pa·m³/s).

Q2: How to verify proper bearing lubrication?
A: Three indicators: Current fluctuation ≤5% ； Stable temperature curve (ΔT≤8℃) ； No abnormal frequency in acoustic analysis (recommend monthly inspection).

Q3: How to ensure bearing life in extreme environments?
A: Three enhanced solutions: High-temp version (-70℃~+220℃) ； Corrosion-resistant type ； Radiation-proof version for nuclear applications.

Q4: What are installation prohibitions?
A: Four strict prohibitions: No bare-hand contact with raceways, no magnetic tools, no solvents except alcohol, no thermal installation above 80℃.

Q5: Why recommend replacing upper/lower bearings as sets?
A: Single replacement causes: Dynamic imbalance； Uneven load distribution ；Over 40% lifespan reduction.

Q6: What are early warning signs of bearing failure?
A: Five critical signs: >5% weekly vacuum degradation ； 300Hz vibration >1.2mm/s ； Start/stop current difference >15% ； Axial play >0.05mm ； Abnormal noise (>75dB).

Q7: How to select alternative suppliers?
A: Must verify: Outgassing test reports ； Material composition certificates； Actual operation lifespan data (recommend ≥500h testing).

Q8: What are special storage requirements?
A: Triple protection: Vacuum packaging (≤10⁻²Pa) ； Temperature control (20±2℃) ； Anti-magnetic environment (≤5 Gauss) Maximum storage 18 months.

Q9: What are golden rules for maintenance?
A: Three "regulars": Vibration spectrum every 500h ； Quarterly inlet filter cleaning ； Annual shaft seal replacement.

Q10: How to identify genuine bearings?
A: Three anti-counterfeit features: Laser micro-engraved codes ； Nano-scale coating ； Official traceability system (website verification).