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Pièces de transmission
U760E U760F Ensemble pignon planétaire arrière de transmission automatique, pignon solaire
Function: Central torque distributor in Toyota/Lexus 6-speed FWD planetary gearset, enabling 5th/6th gear ratios. Key Features: Material: Case-hardened alloy steel (HRC 58-62) with ground helical teeth Spline Design: Micro-polished internal splines for reduced wear against input shaft Thrust Control: Integrated washer surface (critical for axial play adjustment) Failure Modes: Spline Stripping: Causes gear spin (sudden 5-6 shift flare, P2716 codes) Tooth Pitting: Fatigue from
Ensemble tambour de friction directe de la boîte de vitesses automatique U340E, pignon intermédiaire
Function: Engages direct drive (1:1 ratio) in Toyota 4-speed transmissions by locking planetary components via multi-plate clutch. Key Components: Drum Material: Forged aluminum with hardened steel splines (OEM 33404-30030 ) Integrated Piston: Triple-lip seal design for high-pressure stability (90-120 psi apply) Bearing Surfaces: Precision-ground for input shaft support Failure Modes: Spline Rounding: Causes clutch slippage (P0770 codes) Seal Extrusion: ATF degradation leads
Le piston du tambour de l'embrayage direct pour la transmission de surentraînement de la transmission automatique U250E est de 3460133030.
Function: Engages overdrive (O/D) gear by applying hydraulic pressure to clutch pack in planetary transmissions (e.g., 4L60E, A340E). Key Features: Material: Billet aluminum with micro-polished bore (surface finish Ra ≤0.8μm) Seal Design: Dual-lipped HNBR or Viton for high-temp stability (>250°F) Bleed Circuit: Quick-release channels prevent clutch drag Failure Modes: Seal Roll-Over: Improper installation causes pressure leaks (O/D slippage) Bore Scoring: Contaminants jam
L'ensemble d'entrée du tambour d'embrayage de marche avant de la transmission automatique U151F est adapté à la transmission de la Toyota Highlander.
Function: Transmits engine torque to the planetary gearset via engaged clutch plates (typically 1st-3rd/4th gears). Key Components: Input Shaft: Hardened steel with precision-ground splines (connects to torque converter) Clutch Drum: Aluminum/steel hybrid with laser-welded piston channel Integrated Piston: High-pressure seals (Vitron or HNBR) for rapid apply Failure Modes: Spline Wear: Causes clutch drag (delayed engagement, P0776 codes) Drum Warpage: Overheating distorts
U151F Assemblage d'engrenages planétaires à transmission automatique 3572028070
Function: Torque multiplication unit for Toyota/Lexus 8-speed transmissions (e.g., Aisin AWF8G30), enabling gear ratio changes via selective clutch engagement. Key Components: Lepelletier Design: 1 Ravigneaux + 1 simple planetary set for compact 8-speed ratios Hardened Gears: Case-hardened steel (HRC 60+) with ground tooth profiles Needle Bearings: Low-friction support for planetary pinions Failure Modes: Sun Gear Spline Wear: Causes 3-5-7 gear slippage (P2714 codes) Pinion
Le groupe de tambour d'embrayage à vitesse basse U151F de la transmission automatique 3420428011 est applicable à Toyota Hanlan Da
Function: Engages low/reverse gears by actuating multi-plate clutch packs in planetary gearset applications (common in 4WD/RWD transmissions). Key Components: Drum Body: Hardened aluminum or steel with precision splines for clutch plate engagement Integrated Piston: Hydraulically actuated with reinforced seals for high-pressure apply (60-100 psi) Bleed Channels: Prevent clutch drag during release Failure Modes: Spline Wear: Causes incomplete clutch engagement (slippage in low
TR690 CVT d'embrayage pour Subaru 31441AA301 Transmission Assemblage de l'arbre du réducteur.
Function: Transmits torque from transmission output to differential while providing gear reduction for optimal wheel speed/torque. Key Components: Hardened Gear Shaft: Case-hardened steel (HRC 58-62) with ground teeth for NVH reduction Tapered Bearings: Pre-loaded to withstand axial/radial forces Spline Interface: Precision-cut for zero backlash connection to differential Failure Modes: Tooth Pitting: Fatigue wear from shock loads (causes whining noise) Bearing Spalling:
Réducteur de transmission 0CQ pour le groupe réducteur principal du moteur 2.0T BQ1 de la Volkswagen Golf 2017
Function: Distributes Haldex-5 AWD torque (50:50 bias) via hypoid gearset (3.68:1 ratio) with integrated e-diff. Key Features: Forged Pinion: Case-hardened steel (HRC 62+) with lapped contact pattern Sealed Bearings: Lifetime lubricated (G 052 145 S2 fluid) Thermal Sensor: Monitors fluid temp (>130°C triggers TCU protection) Failure Modes: Bearing Brinelling: Impact loads create false brinelling marks (hum at 80km/h+) Seal Leaks: Allows fluid migration to Haldex pump (P189C
AMG GLA45 4MATIC Boîte de vitesses à double embrayage à 7 rapports 724.0 Kit de levier de vitesses 7G-DCT
Function: Electromechanically actuates synchronizer sleeves for gear engagement in Mercedes-Benz transverse DCTs (e.g., A-Class, CLA). Key Components: Forged Aluminum Forks: Anodized contact surfaces (OEM A2462800180 ) Guide Rails: Hardened steel with PTFE coating for low friction Position Sensors: Hall-effect type for TCU feedback (0.1mm accuracy) Failure Modes: Fork Pad Wear: Causes incomplete synchro engagement (grinding noise) Rail Scoring: Contaminated fluid creates drag
