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Brand: C.OEFT
OE numbers: K110
Product Name: Transmission Steel Belt
Compatible model:
Product status:Remanufactured
Product weight: 1.800KG
Packaging size: 32X13X4 cm
Product packaging: Neutral Packaging
Car Series: Japanese
Car Type: for Toyota
1. Core Power Transmission for Toyota K110 CVTs
As the key component of Toyota’s K110 CVT, the K110 steel belt is responsible for transferring power from the engine to the drive wheels. It operates between two variable-diameter conical pulleys (primary and secondary). When the TCU sends signals to adjust the width of the pulleys via hydraulic actuators, the steel belt moves along the pulley cones—riding higher on one pulley and lower on the other—to change the transmission ratio. This enables stepless speed variation, eliminating the need for traditional gear shifts and providing a smooth driving experience.
2. Stepless Ratio Adjustment for Versatile Driving
The belt’s modular design—consisting of 118 interlocked metal elements and two high-strength steel rings—allows it to adapt to the K110 CVT’s pulley diameter range. Lower ratios (0.40-1.0) provide higher torque multiplication, which is ideal for accelerating from a standstill or climbing gentle slopes. Higher ratios (1.0-2.30) optimize fuel efficiency during highway cruising, allowing the engine to operate at a lower, more efficient RPM. This stepless ratio adjustment ensures that the engine remains in its optimal power band across different driving conditions.
3. Torque Distribution for Reliable Performance
Designed to handle maximum torque outputs of up to 220 Nm (matching the K110 CVT’s rated capacity), the K110 steel belt distributes torque evenly across its metal elements and steel rings. The nickel-chromium plated contact surfaces ensure uniform pressure between the belt and the pulleys, preventing localized stress and wear. This torque distribution capability ensures reliable power transfer for Toyota’s 1.2L-2.0L engines, even when the vehicle is fully loaded with passengers and cargo.
4. Thermal and Wear Management
The low-friction surface of the K110 steel belt reduces heat generation during operation, helping to maintain the K110 CVT’s optimal operating temperature range (80-100°C). This prevents overheating and protects the CVT’s internal components from heat-related damage. The nickel-chromium plating on the belt’s contact surfaces also enhances wear resistance, minimizing metal-to-metal wear between the belt and pulleys. This reduces the production of metallic debris that can contaminate CVT fluid, extending the overall lifespan of the transmission.
5. TCU Integration for Adaptive Control
The K110 steel belt works in close conjunction with Toyota’s TCU to ensure optimal CVT performance. The TCU monitors various vehicle parameters, such as engine speed, throttle position, and vehicle speed, to determine the optimal transmission ratio. It then sends signals to the CVT’s hydraulic actuators to adjust the pulley width, and the steel belt responds by moving to the appropriate position. If the TCU detects any abnormalities, such as belt slippage or irregular wear, it will trigger a warning light on the vehicle’s dashboard to alert the driver and may activate a protective mode to prevent further damage to the CVT.
1. OE-Precise Compatibility for Toyota K110 CVT Transmissions
The Transmission Steel Belt K110 is exclusively engineered as a direct OE replacement for Toyota’s K110 series continuously variable transmissions (CVT), which are widely used in Toyota’s mainstream passenger vehicles and compact SUVs, including Toyota Corolla (12th generation), C-HR, Prius Prime, and Lexus UX 200. Adhering strictly to Toyota’s original equipment standards, it matches the genuine steel belt’s critical parameters with ultra-high accuracy: 2.2mm pitch length, 118 metal elements, and an overall dimensional tolerance of ±0.02mm. This precise compliance eliminates common aftermarket issues such as pulley misalignment, belt slippage, or communication delays with Toyota’s Transmission Control Unit (TCU). Mechanics can achieve plug-and-play installation without modifying the K110 CVT’s aluminum alloy conical pulleys or recalibrating the TCU, ensuring seamless integration with Toyota’s powertrain systems.
2. High-Durability Alloy Construction for Daily Use
Crafted from a high-performance alloy composite, the K110 steel belt features a dual-layer structure: a core of high-tensile SUS301 stainless steel (ultimate tensile strength: 1,700 MPa) and a nickel-chromium plating on the contact surfaces. This robust construction delivers excellent resistance to wear and fatigue, enabling the belt to withstand continuous pulley pressure of up to 4,500 N. It undergoes a rigorous heat treatment process—including carburizing, quenching, and tempering—to achieve a surface hardness of HV 630 while maintaining sufficient flexibility. The belt can resist fatigue even after 300,000+ kilometers of operation, perfectly suited for the daily driving demands of Toyota’s family-oriented vehicles.
3. Low-Friction Design for Fuel Efficiency
The steel belt’s metal elements feature a precision-polished surface with a roughness value (Ra) of ≤0.2μm, minimizing frictional resistance between the belt and the CVT’s conical pulleys. This low-friction design improves power transfer efficiency to 92%, which translates to a 1-2 MPG increase in fuel economy for Toyota vehicles compared to worn or generic steel belts. Additionally, reduced friction lowers the operating temperature of the K110 CVT by 5-7°C, extending the lifespan of Toyota’s WS (World Standard) CVT fluid and reducing the frequency of maintenance.
4. Stable Performance in Diverse Driving Conditions
Equipped with a reliable pitch alignment system, the K110 steel belt maintains consistent spacing between its metal elements during gear ratio changes, ensuring stable performance in various driving scenarios—from stop-and-go urban traffic to highway cruising. It responds to TCU commands in ≤10ms, enabling smooth and seamless ratio transitions across the K110 CVT’s ratio range (0.40-2.30) without slippage or shudder. For example, when accelerating from a traffic light or decelerating for a turn, the belt adapts smoothly to pulley width changes, delivering a comfortable driving experience for both drivers and passengers.
5. Cost-Effective and Maintenance-Friendly
Offering OE-level performance at 25-35% lower than genuine Toyota OEM steel belts for K110 CVTs, the K110 steel belt provides exceptional value for Toyota vehicle owners and repair shops. Its durable construction reduces the need for frequent replacements, lowering long-term maintenance costs. The belt is fully compatible with Toyota’s standard K110 CVT service procedures and requires no specialized tools for installation, minimizing labor time and vehicle downtime.
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