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Needle Roller Thrust Bearings as 1226 as 140180 as 1730 as 4060 as 5578 as 6590 as 7095 as 75100 Axk 2035 Axk 3552 Axw 12 Axw 35 Ls 0619 Ls 10241
Thrust Ball Bearing, Needle Roller Thrust Bearings, Needle Thrust Bearings
Shandong UJK Bearing Co., Ltd.
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Product Description UJK Thrust Needle Roller Bearings: English IntroductionUJK Thrust Needle Roller Bearings are precision-engineered components designed to handle high axial loads in minimal axial space. Utilizing cylindrical needle rollers with a high length-to-diameter ratio (typically ≥2.5) and a robust cage assembly, these bearings deliver exceptional rigidity and load capacity while maintaining ultra-thin cross-sections. Ideal for applications requiring precise axial guidance under heavy loads-such as automotive transmissions, industrial machinery, and gear systems-they excel in environments where radial space is constrained but axial force transmission is critical24. Key Features & BenefitsCompact Axial Design:With heights as low as 1-5 mm, these bearings minimize axial space usage by 30-50% compared to conventional thrust bearings, enabling integration in tightly packed assemblies like clutch modules or valve trains24.High Axial Load Capacity:Engineered to withstand extreme unidirectional or bidirectional axial loads (dynamic load ratings up to 40 kN). The needle rollers distribute stress evenly across hardened raceways, preventing deformation under shock loads34.Precision and Durability:Hardened Steel Components: Rollers and raceways use GCr15 bearing steel (HRC 60-64), while cages employ carburized low-carbon steel or polymer (e.g., PA66) for wear resistance14.Optimized Heat Treatment: Advanced quenching processes (e.g., chroming inner rings, tailored oil formulations) enhance corrosion resistance and extend service life1.Versatile Configurations:Washer-Integrated Designs: Combine thrust washers with needle rollers to simplify installation.Bidirectional Models: Handle alternating axial forces without reconfiguration.Sealed Variants: Optional rubber seals (RS/2RS) retain grease and exclude contaminants4.Efficiency in Harsh Conditions:Operate reliably in temperatures from -20°C to 120°C, with lubrication options (grease/oil) tailored for high-speed or high-temperature environments (e.g., engine components)14. Typical ApplicationsAutomotive: Gearbox shift mechanisms, clutch release bearings, steering column thrust units24.Industrial: Machine tool ball screws, hydraulic pump thrust plates, printing press rollers34.Consumer & Aerospace: Actuators, drone gimbal controls, power tool transmissions4. Dimensional Table: UJK Thrust Needle Roller BearingsModelShaft Dia. (mm)Washer OD (mm)Height (mm)Dynamic Load (kN)Static Load (kN)Limiting Speed (rpm)TNA-10102426.59.88,000TNA-1515302.59.815.26,500TNA-202035312.522.05,500TNA-2525423.518.032.54,500TNA-303050424.545.03,800TNA-404062535.065.03,000Bidirectional (e.g., TNAB-20)2038410.018.04,000Notes:Raceway Requirements: Shaft/housing surfaces must be hardened (HRC ≥58) and ground to roughness ≤0.32 μm Ra24.Load Direction: Standard models support unidirectional axial loads; bidirectional variants (suffix B) accommodate alternating forces.Customization: Non-standard sizes, pre-lubrication, and corrosion-resistant coatings (e.g., Zn-Ni) available.
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