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Angular Contact Ball Bearing Single Row HS7005-C-T-P4S-UL FAG

FAG HS7005-C-T-P4S-UL is an ultra-high‑speed, super precision angular contact spindle bearing designed exclusively for high‑speed machine tool spindles, precision rotary tables, and high‑frequency motor applications. Manufactured by Schaeffler to ISO 15:2017, ABEC 7 / P4S, and UL ultra‑precision standards, this bearing features a 15° contact angle, phenolic cage, and optimized internal geometry for minimal heat rise, maximum stiffness, and nanometer‑level rotational accuracy—making it the gold standard for high‑speed precision machining systems.

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FAG HS7005-C-T-P4S-UL is an ultra-high‑speed, super precision angular contact spindle bearing designed exclusively for high‑speed machine tool spindles, precision rotary tables, and high‑frequency motor applications. Manufactured by Schaeffler to ISO 15:2017, ABEC 7 / P4S, and UL ultra‑precision standards, this bearing features a 15° contact angle, phenolic cage, and optimized internal geometry for minimal heat rise, maximum stiffness, and nanometer‑level rotational accuracy—making it the gold standard for high‑speed precision machining systems.
Dimension Parameters
Bore (d): 25 mm; Outer diameter (D): 47 mm; Width (B): 12 mm; Minimum chamfer radius (rmin): 0.6 mm; Tolerance class: P4S (ISO) / ABEC 7; UL ultra‑low noise and vibration grade; Contact angle: **15° (C)»; Dynamic radial load (Cr): 12.1 kN; Static radial load (C0r): 6.3 kN; Limiting high‑speed rating (oil‑air lubrication): 28,000 rpm; Weight: 0.072 kg.
Material Specification
Inner/outer rings and balls: AISI 52100 (100Cr6) high‑purity bearing steel, hardness 62–66 HRC, with exceptional wear resistance, high fatigue strength, and thermal stability. Cage: phenolic resin (textolite), offering low vibration, high temperature resistance, and stable high‑speed performance. Surface finish supports strong lubricant adhesion and low friction.
Core Manufacturing Process
Key processes include precision hot forging, CNC lathing, cryogenic‑supported vacuum heat treatment, high‑precision profile grinding, and ultra‑precision superfinishing to achieve raceway roughness Ra ≤ 0.02 μm. Automated ultrasonic cleaning and 100% dimensional, vibration, and clearance inspection ensure compliance with P4S and UL standards.
Service Life
Under ISO 281 standard conditions with oil‑air lubrication and 40% load, rated life exceeds 12,000 hours. Service life depends heavily on lubrication purity, preload accuracy, operating temperature (<60°C), and contamination control.
Applications & Industries
Mainly used in high‑speed machining spindles, grinding spindles, CNC machine tools, precision routers, and high‑frequency motors. Serves machine tool, aerospace, mold manufacturing, and precision automation industries due to ultra‑precision, low heat generation, and extreme high‑speed capability.
Maintenance
Use low‑viscosity spindle oil or oil‑air lubrication; fill volume optimized to 15–25% of free space. Continuous filtration required. Inspect vibration, temperature, and noise monthly. Replace immediately if abnormal vibration, overheating, or roughness occurs.
Installation
Maintain ISO Class 7 cleanroom environment; clean components to particle‑free standard. Use induction heating ≤80°C for mounting; strictly control preload and alignment TIR ≤0.001 mm. After installation, perform dynamic runout testing and 2‑hour running test.FAG HS7005-C-T-P4S-UL is the ultimate super precision spindle bearing for ultra‑high‑speed CNC machinery, delivering industry‑leading accuracy, stability, and service life.

BRAND	FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI
BEARINGS NO.	HS7005-C-T-P4S-UL FAG
TYPE	Angular Contact Ball Bearings
Inner(d)mm	25
Outer(D)mm	47
Width(B)mm	12
WEIGHT/KG	0.08
EAN CODE	4012801491488

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