IKO LMK8LUU is a high-precision square-flange linear ball bearing designed for stable linear motion, low friction, and high rigidity in compact automation and precision machinery. Manufactured in compliance with ISO 14728 standards, this bearing ensures reliable operation, easy installation, and long service life for precision transmission applications.
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IKO LMK8LUU is a high-precision square-flange linear ball bearing designed for stable linear motion, low friction, and high rigidity in compact automation and precision machinery. Manufactured in compliance with ISO 14728 standards, this bearing ensures reliable operation, easy installation, and long service life for precision transmission applications.
Bore (d): 8 mm; Outer diameter (D): 15 mm; Overall length (L): 45 mm; Flange size: 28 mm; Flange thickness: 6 mm; Maximum chamfer (r): 0.3 mm; Radial clearance: 5–16 μm; Tolerance class: ISO Normal (P0); Mass: 0.05 kg.
Outer cylinder and raceways: SUJ2 (AISI 52100) high-carbon chromium bearing steel, hardness HRC 60–64, with high wear resistance and rolling fatigue strength. Balls: SUJ2 precision steel balls. Cage: Reinforced polyamide 66 (PA66) for stable guidance and low noise. Seals: NBR rubber for dustproofing and lubricant retention.
Cold extrusion provides high material density; precision CNC turning ensures dimensional accuracy; vacuum heat treatment enhances hardness stability; precision grinding and superfinishing achieve raceway roughness Ra ≤ 0.02 μm, reducing friction and improving motion smoothness.
Rated life is calculated per ISO 14728. Under standard working conditions, the rated travel life exceeds 120,000 meters. Service life is affected by lubrication, contamination, alignment, load conditions, and operating temperature.
IKO LMK8LUU is widely used in 3D printers, small CNC machines, medical devices, semiconductor equipment, automation modules, precision instruments, and packaging machinery. Its square flange and long-body structure provide strong moment resistance and convenient mounting.
Lubricate with NLGI No.2 lithium-based grease, filling 30–40% of internal space. Inspect every 1000 hours; clean with non-corrosive solvent. Check for abnormal noise, vibration, or overheating. Replace if raceway damage or excessive clearance occurs.
Clean shaft and housing before installation; press evenly with tooling; alignment error ≤ 0.01 mm/mm; flange bolt torque: 1.5–2.0 N·m. After installation, confirm smooth movement and temperature rise ≤ 40°C. Use dust-free conditions and safety gloves.
| BRAND | FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI |
| BEARINGS NO. | LMK8LUU IKO |
| TYPE | Linear sliders rails |
| Inner (d) MM | 8 |
| Outer (D) MM | 15 |
| Width (B) MM | 45 |
| WEIGHT/KG | 0.039 |
| EAN CODE |
+86-510-6831-3099
No.105, Huixin Road,Yuqi Industrial Park, Huishan District, hunqi Road, Yuqi Town, Wuxi, Jiangsu Province, P.R.CHINA
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