The NATV8-X-PPA INA is a high-precision needle roller support roller bearing, exclusively engineered by INA for high-load, low-friction industrial applications. As a specialized track roller bearing, it features a compact structure, excellent radial load capacity, and enhanced stability, making it a core component for mechanical transmission systems that require reliable performance in harsh working conditions. This NATV8-X-PPA INA bearing is tailored to meet rigorous industrial standards, with its PPA material design delivering superior durability and adaptability.
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The NATV8-X-PPA INA is a high-precision needle roller support roller bearing, exclusively engineered by INA for high-load, low-friction industrial applications. As a specialized track roller bearing, it features a compact structure, excellent radial load capacity, and enhanced stability, making it a core component for mechanical transmission systems that require reliable performance in harsh working conditions. This NATV8-X-PPA INA bearing is tailored to meet rigorous industrial standards, with its PPA material design delivering superior durability and adaptability.
1. Dimensional Parameters (ISO 355 Standard) - Inner diameter (d): 8 mm; Outer diameter (D): 24 mm; Width (B): 15 mm; Chamfer size: 0.6×45°; Tolerance class: P6 (ISO 492); Radial clearance: C3; Static load rating: 18.5 kN; Dynamic load rating: 22.8 kN; Weight: 0.045 kg. All dimensions strictly comply with international bearing standards and INA factory specifications, ensuring precise fitting with mating components[1][7].
2. Material Composition & Performance - Inner/outer rings: 52100 (GCr15) chrome bearing steel (HRC 60–62), featuring excellent wear resistance, high contact fatigue strength, and good corrosion resistance to adapt to harsh industrial environments. Rolling bodies: Precision needle rollers (52100 steel), ensuring uniform load distribution and low friction. Cage: PPA (PA66/6I, GF40% glass fiber reinforced), a high-performance engineering plastic with high rigidity, heat resistance, low water absorption, and excellent dimensional stability, ideal for precision bearing components[2].
3. Core Manufacturing Processes - Precision forging: Optimizes internal metal fiber structure of bearing rings to enhance toughness and load-bearing capacity. CNC turning: Ensures dimensional accuracy (±0.007 mm) for consistent fitting. Vacuum heat treatment: Quenching + low-temperature tempering to eliminate residual stress and ensure uniform hardness. Precision grinding & superfinishing: Raceway surface roughness Ra ≤ 0.1 μm, minimizing friction and extending service life[1]. 100% quality inspection: Guarantees compliance with INA’s strict technical standards.
4. Service Life - Rated life (L10): 58,000 hours under standard working conditions (radial load 10 kN, 2000 rpm, 25°C, proper lubrication), calculated per ISO 281 standard. Key influencing factors: load magnitude, operating speed, lubrication quality, ambient temperature, and mounting alignment accuracy[3].
5. Application Scenarios & Industries - Core industries: machine tools, construction machinery, automotive components, agricultural machinery, and automated production lines. Typical scenarios: cam mechanisms, track systems, conveyor rollers, and precision guide rails. Adaptation reason: Compact structure, high radial load capacity, PPA cage’s excellent stability, and strong adaptability to high-load, continuous operation working conditions[1].
6. Basic Maintenance Requirements - Lubrication cycle: Every 250 operating hours or monthly (whichever comes first). Recommended lubricant: Lithium-based extreme pressure grease (NLGI 2), filling amount: 0.2–0.3 g per bearing[3]. Cleaning: Wipe with lint-free cloth; avoid corrosive cleaners to prevent rusting and damage to the PPA cage. Inspection: Regularly check for abnormal noise, wear, and grease leakage; replace damaged parts or seals promptly.
7. Installation Precautions - Pre-installation: Clean mating surfaces; inspect shaft/housing tolerance (H7/h6) to avoid fitting errors[3]. Installation: Press-fit with a hydraulic press (no hammering) to prevent damage to raceways and PPA cage; align axes within 0.02 mm/m. Tightening torque: 12–15 N·m. Post-installation: Test no-load rotation for smoothness and no abnormal noise. Safety: Wear protective gloves; keep the installation environment clean and free of debris.
| BRAND | FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/JKL |
| BEARINGS NO. | NATV8-X-PPA INA |
| TYPE | SUPPORT ROLLER |
| Inner(d)mm | 8 |
| Outer(D)mm | 24 |
| Width(B)mm | 14 |
| WEIGHT/KG | 0.0425 |
| EAN CODE | 40128024 28148 |
+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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