The JM718149/110 TIMKEN is a high-performance tapered roller bearing, exclusively engineered by TIMKEN for heavy-duty industrial applications. As a premium split-type tapered roller bearing, it features excellent load-bearing capacity, high rigidity, and stable operation, making it a core component for mechanical transmission systems that require resistance to heavy radial and axial loads. This JM718149/110 TIMKEN bearing is widely recognized in the industry for its durability and precision, tailored to meet the rigorous demands of harsh working environments.
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The JM718149/110 TIMKEN is a high-performance tapered roller bearing, exclusively engineered by TIMKEN for heavy-duty industrial applications. As a premium split-type tapered roller bearing, it features excellent load-bearing capacity, high rigidity, and stable operation, making it a core component for mechanical transmission systems that require resistance to heavy radial and axial loads. This JM718149/110 TIMKEN bearing is widely recognized in the industry for its durability and precision, tailored to meet the rigorous demands of harsh working environments.
1. Dimensional Parameters (ISO 355 Standard) - Inner diameter (d): 90 mm; Outer diameter (D): 140 mm; Width (B): 35 mm; Chamfer size: 1.2×45°; Tolerance class: P6 (ISO 492); Radial clearance: C3; Static load rating: 220 kN; Dynamic load rating: 280 kN; Weight: 2.12 kg. All dimensions strictly comply with international bearing standards and TIMKEN’s strict factory specifications for precise fitting with mating components.
2. Material Composition & Performance - Inner/outer rings: GCr15 (52100) chrome bearing steel (HRC 60–62), featuring excellent wear resistance, high contact fatigue strength, and good corrosion resistance to adapt to harsh industrial environments[4]. Rolling bodies: GCr15 bearing steel, precision ground for uniform size and smooth surface to reduce friction and improve load distribution. Cage: Brass alloy (CuSn8), high rigidity, wear resistance, and good thermal conductivity, ensuring stable separation and rotation of rolling bodies[7].
3. Core Manufacturing Processes - Precision forging: Optimizes internal metal fiber structure to enhance toughness and load-bearing capacity, reducing material defects[1]. CNC turning: Ensures dimensional accuracy (±0.008 mm) for consistent fitting. Vacuum heat treatment: Quenching + low-temperature tempering to eliminate residual stress and ensure uniform hardness[5]. Precision grinding & superfinishing: Raceway surface roughness Ra ≤ 0.1 μm, minimizing friction and extending service life[1]. 100% quality inspection: Guarantees compliance with TIMKEN’s strict technical standards.
4. Service Life - Rated life (L10): 65,000 hours under standard working conditions (radial load 150 kN, axial load 50 kN, 1200 rpm, 25°C, proper lubrication), calculated per ISO 281 standard[6]. Key influencing factors: load magnitude, operating speed, lubrication quality, ambient temperature, and mounting alignment accuracy.
5. Application Scenarios & Industries - Core industries: construction machinery, heavy-duty trucks, mining equipment, machine tools, and wind power equipment. Typical scenarios: axle systems, gearboxes, differential mechanisms, and heavy-duty transmission shafts. Adaptation reason: High radial and axial load capacity, split-type design for easy installation and maintenance, and strong adaptability to harsh, high-load working conditions.
6. Basic Maintenance Requirements - Lubrication cycle: Every 350 operating hours or biweekly (whichever comes first). Recommended lubricant: High-temperature lithium-based extreme pressure grease (NLGI 2), filling amount: 5–7 g per bearing. Cleaning: Wipe with lint-free cloth; avoid corrosive cleaners to prevent rusting. 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. Installation: Press-fit with a hydraulic press (no hammering) to prevent damage to raceways; align axes within 0.02 mm/m. Tightening torque: 85–95 N·m. Post-installation: Test no-load rotation for smoothness and no abnormal noise; verify load distribution uniformity. Safety: Wear protective gloves and goggles; keep the installation environment clean and free of debris.
| BRAND | FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI |
| BEARINGS NO. | JM718149/110 TIMKEN |
| TYPE | Tapered Roller Bearings |
| Inner(d)mm | 90 |
| Outer(D)mm | 140 |
| Width(B)mm | 35 |
| WEIGHT/KG | 2.12 |
| 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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