Central Pin for Bulldozer SEM822D (Part Number 75185488)
推土机SEM822D中心销 (零件号 75185488)
Product Overview | 产品概述
The Central Pin (Part Number 75185488) is a crucial component designed specifically for the SEM822D bulldozer. This pin plays a vital role in the machine's undercarriage system, contributing to the articulation and stability of key assemblies. Engineered for durability and precision, it ensures reliable performance in demanding construction and earthmoving operations.
中心销（零件号75185488）是专为SEM822D推土机设计的关键部件。该销在机器底盘系统中扮演着至关重要的角色，有助于关键部件的铰接和稳定性。它以耐用性和精确性为设计宗旨，确保在严苛的建筑和土方作业中提供可靠的性能。
Product Parameters | 产品参数
| Parameter | 参数 | Description | 描述 |
|---|
| Part Number | 零件号 | 75185488 |
| Type | 类型 | Central Pin | 中心销 |
| Material | 材料 | High-strength alloy steel, heat-treated for enhanced durability and wear resistance. | 高强度合金钢，经热处理，以提高耐用性和耐磨性。 |
| Manufacturing Process | 制造工艺 | Precision machined to OEM specifications, ensuring a perfect fit and optimal performance. | 精密加工，符合原始设备制造商（OEM）规格，确保完美匹配和最佳性能。 |
| Function | 功能 | Connects and articulates critical components within the bulldozer's undercarriage/frame. | 连接和铰接推土机底盘/车架内的关键部件。 |
| Corrosion Resistance | 耐腐蚀性 | Surface treatment for protection against rust and environmental wear. | 表面处理，防锈蚀和环境磨损。 |
Note: Exact dimensions and weight for part number 75185488 are typically proprietary and may require direct inquiry to the manufacturer or authorized dealer. The descriptions above reflect general characteristics of high-quality central pins for heavy machinery.
注：零件号75185488的具体尺寸和重量通常为专有信息，可能需要直接咨询制造商或授权经销商。以上描述反映了重型机械用高质量中心销的一般特性。
Product Advantages | 产品优势卖点
Superior Durability: Manufactured from robust alloy steel with advanced heat treatment, providing exceptional resistance to wear, impact, and fatigue, extending the service life of the component.
Precision Fit: Engineered to exact OEM specifications, ensuring a precise fit that minimizes play and maximizes the efficiency of the interconnected systems.
Optimized Performance: Contributes to the smooth and stable operation of the bulldozer's undercarriage, enhancing overall machine productivity and safety.
Reduced Downtime: High-quality construction reduces the frequency of replacements and maintenance, leading to less operational downtime and lower long-term costs.
Reliability: Designed to withstand the severe conditions of earthmoving, offering reliable performance under heavy loads and continuous operation.
产品优势卖点
卓越的耐用性: 采用坚固的合金钢制造，经过先进热处理，提供出色的耐磨、抗冲击和抗疲劳能力，延长部件使用寿命。
精确匹配: 按照严格的OEM（原始设备制造商）规格设计，确保精确匹配，最大程度减少间隙，提高互连系统的效率。
优化性能: 有助于推土机底盘的平稳和稳定运行，提高机器整体生产力和安全性。
减少停机时间: 高质量结构减少更换和维护频率，从而缩短操作停机时间并降低长期成本。
可靠性: 专为承受严苛的土方作业条件而设计，在重载和连续运行下提供可靠的性能。
Applicable Equipment | 适用设备
This Central Pin (Part Number 75185488) is primarily designed for the SEM822D Bulldozer. It is a critical component for its undercarriage and frame assembly. While specifically engineered for the SEM822D, similar central pins are essential for various heavy-duty track-type tractors and dozers across different brands and models. It is always recommended to verify compatibility with your specific equipment model and part number to ensure correct fitment and optimal performance.
适用设备
此中心销（零件号75185488）主要为SEM822D推土机设计。它是其底盘和车架组件的关键部件。虽然专为SEM822D设计，但类似的中心销对于不同品牌和型号的各种重型履带式拖拉机和推土机都至关重要。始终建议根据您的特定设备型号和零件号核实兼容性，以确保正确安装和最佳性能。
Application Scenarios & Case Analysis | 应用场景及案例分析
Central pins like part number 75185488 are fundamental to the operation of bulldozers in diverse, demanding environments. They serve as pivot points allowing essential movements, such as the articulation of the blade assembly or the connection within the track chain system. Their proper functioning ensures efficient power transfer and maneuverability.
Typical Application Scenarios | 典型应用场景
Construction Sites: Used in large-scale land clearing, grading, and excavation tasks where bulldozers continuously push and move heavy materials.
Mining Operations: Essential for maintaining stability and movement when ripping hard ground, clearing overburden, or managing haul roads in mines.
Road Building: Facilitates precision grading and leveling of terrain for new road construction.
Landfill Management: Supports the continuous compaction and spreading of waste materials.
Case Analysis: Importance in Track Chain Integrity | 案例分析：在履带链完整性中的重要性
While the 75185488 is a central pin, the general principles of pins in bulldozer undercarriages highlight their importance. Track pins and bushings, for instance, are the hinges that connect track links, forming the continuous track chain. A high-quality central pin ensures even load distribution across the undercarriage. If a pin wears excessively, it can lead to chain elongation, causing the track to loosen, potentially "climbing off" the sprocket, resulting in significant downtime and costly repairs. Regular maintenance, including lubrication and timely replacement of worn pins, is crucial to prevent such failures and maintain operational efficiency. A robust central pin (like 75185488) minimizes such risks by providing a stable and durable connection point, directly impacting the machine's overall productivity and lifespan.
应用场景及案例分析
像零件号75185488这样的中心销是推土机在各种苛刻环境中运行的基础。它们作为枢轴点，允许进行必要的运动，例如铲刀组件的铰接或履带链系统内的连接。它们的正常运行确保了有效的动力传输和机动性。
典型应用场景
案例分析：在履带链完整性中的重要性
虽然75185488是一个中心销，但推土机底盘中销的一般原理突出了它们的重要性。例如，履带销和衬套是连接履带链节的铰链，形成连续的履带链。高质量的中心销确保底盘承受均匀的载荷分布。如果销磨损过度，可能导致履带链伸长，使履带松弛，可能导致履带“脱轨”，造成严重的停机时间和昂贵的维修费用。定期维护，包括润滑和及时更换磨损的销，对于防止此类故障和保持运行效率至关重要。一个坚固的中心销（如75185488）通过提供稳定耐用的连接点，直接影响机器的整体生产力和使用寿命，从而最大限度地降低此类风险。
Related Similar Products | 相关相似产品
Beyond the central pin, various other pins and undercarriage components are crucial for bulldozer operation. These parts often share similar material and manufacturing requirements due to the harsh operating conditions.
Track Pins & Bushings: Form the links of the track chain, allowing the tracks to articulate. Applicable to all track-type bulldozers (e.g., Cat D Series, Komatsu D Series, LiuGong, SEM models like SEM822D, D60, D65, D85, D155).
Pivot Pins: Used in various pivot points of the bulldozer, such as blade pivots, ripper linkages, and articulation joints. Applicable to bulldozer blades, rippers, C-frames (e.g., Cat D6, D7, D8, D9 series).
Equalizer Bar Pins: Connect the equalizer bar to the main frame, crucial for track oscillation and maintaining ground contact. Applicable to larger bulldozers (e.g., Komatsu D155, D375).
Track Rollers (Bottom Rollers & Carrier Rollers): Support the weight of the machine and guide the track chain. Applicable to all track-type bulldozers (e.g., SEM822D, Cat, Komatsu, Hitachi, Daewoo, Hyundai).
Sprockets & Idlers: Drive the track chain and maintain track tension. Applicable to all track-type bulldozers.
Track Links & Shoe Assemblies: Form the main body of the track and provide traction. Applicable to all track-type bulldozers.
相关相似产品
除了中心销，各种其他销和底盘部件对于推土机的操作至关重要。由于恶劣的操作条件，这些零件通常具有相似的材料和制造要求。
履带销和衬套: 构成履带链的连接，使履带能够铰接。适用于所有履带式推土机（例如，卡特D系列、小松D系列、柳工、SEM型号如SEM822D、D60、D65、D85、D155）。
枢轴销: 用于推土机的各种枢轴点，例如铲刀枢轴、松土器连杆和铰接接头。适用于推土机铲刀、松土器、C形架（例如，卡特D6、D7、D8、D9系列）。
平衡梁销: 连接平衡梁到主车架，对于履带摆动和保持地面接触至关重要。适用于大型推土机（例如，小松D155、D375）。
履带支重轮（下支重轮和托链轮）: 支撑机器重量并引导履带链。适用于所有履带式推土机（例如，SEM822D、卡特、小松、日立、斗山、现代）。
驱动轮和导向轮: 驱动履带链并保持履带张紧度。适用于所有履带式推土机。
履带链节和履带板组件: 构成履带的主体并提供牵引力。适用于所有履带式推土机。
Installation and Maintenance: Common Problems & Solutions | 安装维护：常见问题及解决方案
Proper installation and regular maintenance are critical for maximizing the lifespan and performance of the central pin and related components in a bulldozer.
Common Problems | 常见问题
Excessive Wear/Clearance: Over time, the pin and its corresponding bushing can wear, leading to increased clearance and "wiggling," which indicates significant material loss.
Fracture/Breakage: Due to extreme stress, fatigue, or impact, the pin may crack or break.
Looseness/Improper Fit: Incorrect installation or worn components can lead to the pin not fitting snugly, causing rattling and accelerated wear.
Lack of Lubrication: Insufficient or improper greasing can lead to metal-on-metal contact, accelerating wear and heat buildup.
Contamination: Dirt, mud, and abrasive materials can infiltrate the pin-bushing interface, causing premature wear.
Solutions & Best Practices | 解决方案及最佳实践
Regular Inspection: Visually inspect pins and bushings for wear, cracks, and looseness during daily machine walk-arounds. Check for excessive play between components.
Proper Lubrication: Adhere to the manufacturer's lubrication schedule and use the specified type of grease. Ensure all grease points are adequately lubricated.
Maintain Proper Tension: For track pins (and by extension, other crucial pins affecting track alignment), ensure track tension is within the recommended range to prevent abnormal wear.
Cleanliness: Regularly clean the undercarriage to prevent accumulation of dirt and debris that can cause abrasive wear.
Timely Replacement: Replace worn or damaged pins and bushings immediately to prevent cascading failures to other, more expensive components. Use genuine or high-quality aftermarket parts.
Professional Installation: Ensure installation is performed by qualified technicians following manufacturer guidelines, using appropriate tools (e.g., hydraulic track pin presses for track pins) to achieve correct fitment.
安装维护：常见问题及解决方案
正确的安装和定期的维护对于最大限度地延长推土机中心销和相关部件的寿命及性能至关重要。
常见问题
过度磨损/间隙过大: 随着时间的推移，销及其对应的衬套会磨损，导致间隙增大和“晃动”，这表明材料损失严重。
断裂/破损: 由于极端应力、疲劳或冲击，销可能会破裂或断裂。
松动/不正确配合: 不正确的安装或磨损的部件可能导致销不紧密配合，引起异响和加速磨损。
润滑不足: 润滑不足或不当可能导致金属间的接触，加速磨损和热量积聚。
污染: 灰尘、泥浆和磨料可能会渗入销-衬套界面，导致过早磨损。
解决方案及最佳实践
定期检查: 在机器日常巡检中，目视检查销和衬套是否有磨损、裂纹和松动。检查部件之间是否有过大的间隙。
适当润滑: 遵循制造商的润滑时间表，并使用指定类型的润滑脂。确保所有润滑点都得到充分润滑。
保持适当张紧度: 对于履带销（以及影响履带对齐的其他关键销），确保履带张紧度在推荐范围内，以防止异常磨损。
清洁: 定期清洁底盘，防止灰尘和碎屑积聚，这可能导致磨蚀性磨损。
及时更换: 立即更换磨损或损坏的销和衬套，以防止对其他更昂贵部件造成连锁故障。使用原厂或高质量的售后零件。
专业安装: 确保由合格的技术人员按照制造商指南进行安装，并使用适当的工具（例如，用于履带销的液压履带销压机）以实现正确的配合。
