144-21-12310 SCREW KOMATSU Parts - Essential for Heavy Machinery
144-21-12310 小松螺栓零件 - 重型机械之关键
Product Overview | 产品概述
The 144-21-12310 SCREW is a critical Komatsu genuine or high-quality aftermarket part designed for secure fastening in heavy machinery. Weighing approximately 1.16 kg, this robust screw plays a vital role in the structural integrity and operational reliability of various Komatsu bulldozer models. It is specifically utilized in critical assemblies such as the clutch and brake (bevel gear and shaft) and steering (bevel gear and shaft) systems, ensuring components remain firmly in place even under extreme operating conditions.
144-21-12310 螺栓是一款关键的小松原厂或高品质副厂零件，专为重型机械中的安全紧固而设计。这款坚固的螺栓重量约为1.16公斤，在各种小松推土机型号的结构完整性和运行可靠性方面发挥着至关重要的作用。它特别用于离合器和制动器（伞齿轮和轴）以及转向系统（伞齿轮和轴）等关键部件中，确保即使在极端操作条件下，组件也能牢固地固定到位。
Product Parameters & Advantages | 产品参数与优势
| Parameter | 参数 | Description | 描述 |
|---|
| Part Number | 零件编号 | 144-21-12310 |
| Type | 类型 | Screw | 螺栓 |
| Weight | 重量 | Approx. 1.16 kg | 约1.16公斤 |
| Material | 材料 | High-strength alloy steel (inferred) | 高强度合金钢（推断） |
| Application Area | 应用领域 | Clutch & Brake (Bevel Gear & Shaft), Steering (Bevel Gear & Shaft) | 离合器与制动器（伞齿轮和轴）、转向系统（伞齿轮和轴） |
Key Selling Points | 核心卖点:
Durability & Strength: Manufactured from high-grade materials to withstand extreme loads, vibrations, and harsh operating environments, ensuring long service life.
耐用性与强度: 采用高级材料制造，能够承受极端载荷、振动和恶劣操作环境，确保长寿命。
Precision Fit: Engineered to exact Komatsu specifications, guaranteeing a perfect fit and optimal performance within relevant assemblies.
精准匹配: 按照小松的精确规格设计，确保在相关组件中完美匹配和最佳性能。
Enhanced Safety: Securely fastens critical components, preventing loosening and potential failures that could compromise operational safety and efficiency.
提升安全性: 牢固地紧固关键部件，防止松动和潜在故障，从而保障操作安全和效率。
Corrosion Resistance: Often treated or made from materials with excellent resistance to rust and corrosion, crucial for outdoor heavy equipment.
耐腐蚀性: 通常经过处理或由具有优异防锈和耐腐蚀性能的材料制成，这对于户外重型设备至关重要。
Applicable Equipment & Application Scenarios | 适用设备与应用场景
This 144-21-12310 screw is applicable to a wide range of Komatsu bulldozer models, ensuring robust connections in their heavy-duty operations. These machines are extensively used in various demanding industries.
这款 144-21-12310 螺栓适用于多种小松推土机型号，确保其重载作业中的连接牢固。这些机械广泛应用于各种严苛的行业。
Applicable Komatsu Models | 适用小松型号:
BF60
D60A
D60E
D60F
D60P
D60PL
D60S
D65A
D65E
D65P
D65S
D70
D70LE
D75A
D85E
D85ESS
Application Scenarios & Case Analysis | 应用场景与案例分析:
Komatsu bulldozers (like the D60 and D65 series) are workhorses in various demanding environments. The 144-21-12310 screw's reliability is crucial in these applications.
小松推土机（如D60和D65系列）是各种严苛环境下的主力设备。144-21-12310 螺栓的可靠性在这些应用中至关重要。
Construction Sites (施工现场): Bulldozers are fundamental for land clearing, grading, and pushing earth on construction sites. The screw ensures the secure operation of the steering and power transmission systems, vital for precise maneuverability and efficient material handling.
Case: A D65E-12 bulldozer is working on a new highway project. The secure fastening of its bevel gear and shaft components by this screw ensures consistent power transfer and responsive steering, allowing the operator to accurately shape terrain and maintain productivity.
Mining Operations (采矿作业): In open-pit mines, these bulldozers move vast quantities of overburden and ore. The screw's ability to withstand constant vibration and heavy loads in the clutch and brake assembly is critical for maintaining traction and controlling the machine on uneven, challenging terrain.
Case: A D85E bulldozer is clearing rock fragments in a quarry. The integrity of its brake and clutch system, reinforced by the 144-21-12310 screw, allows for safe stopping and precise control during steep descents and heavy pushing, minimizing downtime due to component failure.
Landfill Management (垃圾填埋场管理): Bulldozers are used to compact waste and shape landfill cells. The reliable performance of every component, including this screw in the steering mechanism, contributes to the machine's ability to operate continuously and safely in often corrosive and debris-filled environments.
Case: A D60P bulldozer is compacting refuse at a landfill. The robust fastening provided by the screw in its steering system ensures the machine remains controllable and efficient, even when navigating unstable ground and processing high volumes of waste, preventing premature wear and operational hazards.
Related Similar Products | 其他相似产品
In addition to the 144-21-12310, Komatsu machinery utilizes various other specialized screws and fasteners. These are designed for specific applications within the equipment, ensuring optimal performance and longevity.
除了144-21-12310，小松机械还使用各种其他专用螺栓和紧固件。这些零件专为设备内的特定应用而设计，确保最佳性能和使用寿命。
144-916-2570 SCREW: Often found in track frame assemblies or undercarriage components.
Applicable for: D60E, D60P, D61E, D61EX, D61PX, D65A, D65E, D65EX, D65P, D65PX, D68ESS, D70LE, D85E, D85ESS.
130-70-12261 SCREW: Commonly used in general chassis or frame fastening.
Applicable for: D50S, D55S, D60A, D60S, D65A, D65S, D75S.
150-70-12242 SCREW: May be found in transmission or hydraulic system mounts.
Applicable for: BZ210, D60A, D60E, D65A, D65E, D65EX, D68ESS, D70, D70LE, D75A, D80A, D85A.
01322-31216 SCREW: Often used in engine mounts or smaller component attachments.
Applicable for: BF60, D60A, D60E, D60F, D60P, D60PL, D70, D70LE.
Installation & Maintenance - Common Issues & Solutions | 安装与维护 - 常见问题与解决方案
Proper installation and regular maintenance are crucial for the longevity and reliable performance of screws in heavy equipment. Here are common issues and their solutions:
正确的安装和定期维护对于重型设备中螺栓的使用寿命和可靠性能至关重要。以下是常见问题及其解决方案：
Stripped Threads (螺纹滑丝):
Issue: Occurs due to over-tightening, cross-threading, or using worn tools. The screw no longer holds securely.
Solution: Use a torque wrench for precise tightening. Ensure threads are clean and free of debris before installation. If stripped, consider re-tapping the hole (if possible) or replacing both the screw and mating component.
Corrosion & Rusting (腐蚀与生锈):
Issue: Exposure to moisture, chemicals, or harsh environments leads to material degradation, weakening the screw.
Solution: Use screws made from corrosion-resistant materials (e.g., stainless steel or coated screws). Apply anti-seize or rust-preventative coatings during installation. Regular cleaning and inspection.
Head Breaking or Stripping (螺栓头部断裂或滑牙):
Issue: Caused by excessive torque, using the wrong size tool, or poor quality screws. Makes removal or further tightening impossible.
Solution: Always use the correct size and type of wrench/socket. Invest in high-quality screws. If a head strips, use a screw extractor set for removal.
Fatigue Failure (疲劳断裂):
Issue: Screws subjected to constant vibration or cyclic loading can weaken over time, leading to cracks and breakage.
Solution: Ensure proper torque settings to achieve adequate preload. Consider using thread-locking compounds (e.g., Loctite) or lock washers to prevent loosening under vibration. Regular inspections for signs of wear.
Misalignment (错位安装):
Issue: Installing a screw at an angle can create uneven stress, leading to premature wear or failure.
Solution: Always ensure the screw is inserted straight into the hole. Pre-drilling pilot holes (if applicable) can aid in proper alignment.
Key Maintenance Practices (关键维护实践): Regular visual inspections, checking mounting bolts/screws for tightness, ensuring proper lubrication of surrounding components, and operator training on correct installation and handling procedures are vital to maximize the lifespan of these critical fasteners.
关键维护实践: 定期目视检查、检查安装螺栓/螺钉的松紧度、确保周围部件的适当润滑以及对操作员进行正确安装和处理程序的培训，对于最大化这些关键紧固件的使用寿命至关重要。
