표준 2 2개의 이중 그루브 트랙 풀리 시브 휠 벨트 기어 3D 모델

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More Information About 3D Model :
**STANDARD 2 TWO DOUBLE GROOVE TRACK PULLEY SHEAVE WHEEL BELT GEAR**

The Standard Double Groove Track Pulley Sheave Wheel is a precision-engineered mechanical component integral to power transmission, motion control, and guidance systems. Often referred to simply as a double sheave or two-groove pulley, its design adheres to standardized dimensional specifications, ensuring interoperability across a wide range of industrial and vehicular machinery.

### Nomenclature and Definition

A pulley (or sheave wheel) is fundamentally a wheel mounted on an axle or shaft designed to support movement and change the direction of a continuous flexible element, typically a belt, rope, cable, or chain. The term "Track Pulley" specifically emphasizes its function in guiding and maintaining tension within a defined system pathway, distinct from simple lifting applications.

The defining characteristic of this component is the "Double Groove" configuration. This refers to the presence of two independent, circumferential channels machined into the rim of the wheel. These channels are designed to securely seat two separate flexible elements, enabling simultaneous, independent, or linked power transmission from a single axis.

### Design and Configuration

**Groove Geometry:** The geometry of the grooves is dictated by the type of flexible element used.
1. **V-Grooves:** Most common in belt drive systems (hence "Belt Gear"). These tapered grooves accommodate V-belts, relying on the wedging action to maximize friction, traction, and torque transfer efficiency. Standard pulley design strictly defines the taper angle and depth relative to common belt cross-sections (e.g., A, B, C, or 3V, 5V, 8V).
2. **U-Grooves/Rounded Grooves:** Used primarily for rope, cable, or wire guidance applications where the primary function is deflection and friction reduction, rather than pure torque transmission.

**Standardization:** The designation "Standard" confirms that the pulley’s key dimensions—including pitch diameter (P.D.), bore diameter, keyway dimensions, and groove profile—conform to established international (e.g., ISO, DIN) or national (e.g., ANSI, ASME) specifications. This adherence guarantees consistent performance metrics, load ratings, and interchangeability.

**Material and Manufacturing:** Standard double groove pulleys are typically fabricated from materials exhibiting high tensile strength, wear resistance, and inherent damping properties. Common materials include high-grade grey cast iron (due to its excellent machinability and vibration dampening capacity), ductile iron, steel, or aluminum alloys (where mass reduction and high rotational speeds are critical). Manufacturing processes generally involve casting or forging, followed by precision CNC machining to ensure accurate groove geometry, bore concentricity, and dynamic balancing, the latter being essential for high-speed operation to mitigate vibrational instability.

### Functional Applications

The dual-groove configuration provides significant operational advantages in mechanical systems:

1. **Multi-Drive System:** The pulley can simultaneously drive two separate components or sub-systems from a single input shaft, potentially utilizing different speed ratios if the effective pitch diameters of the two grooves vary.
2. **Redundancy and Load Distribution:** In critical applications, utilizing two belts ensures that the overall load is distributed, increasing the longevity of the drive system. If one belt fails, the remaining belt provides temporary system functionality (redundancy).
3. **Increased Power Handling:** A double-belt drive configuration effectively doubles the nominal power transmission capacity of a single-belt system operating on the same shaft size, without requiring a significant increase in the pulley's overall diameter or face width.
4. **Tensioning and Synchronization:** In complex tracking or conveyor systems, the double groove sheave provides robust guidance and allows for synchronized movement between two parallel track elements.

The rotational relationship between the driving pulley and the driven pulley is categorized as a "belt gear" system, where the speed ratio (mechanical advantage) is inversely proportional to the ratio of the pitch diameters (N1/N2 = D2/D1).

KEYWORDS: Pulley, Sheave, Double Groove, Track Pulley, Belt Drive, Power Transmission, Mechanical Component, V-Belt, Synchronization, Tensioning System, Gear Ratio, Rotational Motion, Standardized Component, Cast Iron, CNC Machining, Pitch Diameter, Shaft, Torque Transfer, Guidance System, Machine Element, V-Groove, Idler Pulley, Drive System, Two-Stage Transmission, Redundancy, ANSI Standard, ISO Standard, High Speed, Load Distribution, Mechanical Advantage