行业组件数据 · 2026

履带下滚轮

Track rollers are cylindrical components that support and guide the track chain on heavy machinery undercarriages.

技术定义与适配语境
典型 履带下滚轮 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Track rollers (bottom rollers) are precision-engineered rotating components installed along the lower frame of tracked vehicle undercarriages. They bear the machine's weight while maintaining proper track tension and alignment, reducing friction between the track chain and frame during operation. These rollers feature sealed bearing assemblies, hardened wearing surfaces, and standardized mounting configurations for durability in demanding environments.

组件规格

定义
Track rollers (bottom rollers) are precision-engineered rotating components installed along the lower frame of tracked vehicle undercarriages. They bear the machine's weight while maintaining proper track tension and alignment, reducing friction between the track chain and frame during operation. These rollers feature sealed bearing assemblies, hardened wearing surfaces, and standardized mounting configurations for durability in demanding environments.
工作原理
Track rollers operate on rotational bearing principles, converting sliding friction between the track chain and undercarriage frame into rolling friction. As the track chain moves, the rollers rotate on their axles, distributing load evenly across multiple contact points while minimizing energy loss and component wear through controlled motion transfer.
材料
Forged alloy steel (typically SAE 4140/4340)through-hardened to 55-60 HRCSeals: Nitrile rubber with steel reinforcementBearings: Tapered roller bearings with lithium-based greaseOptional coatings: Hard chrome plating (0.05-0.10mm) for corrosion resistance.
Width
70-120mm
Diameter
150-300mm
Seal Type
Labyrinth with floating seals
Load Capacity
8-25 tons per roller
Lubrication Interval
500-1000 operating hours
Operating Temperature
-40°C to 120°C
标准
ISO 286-2DIN 7154ISO 3448

行业分类与别名

履带下滚轮 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Seal degradation allowing contaminant ingress->Bearing corrosion and increased rotational resistance->Regular seal inspection and replacement; Use of multi-labyrinth seal designs
Excessive track tension beyond design limits->Roller flange cracking and bearing overload->Implement tension monitoring systems; Follow manufacturer tension specifications

工业生态与工程逻辑

0
Bearing seizure due to seal failure
1
Flange fracture from impact loading
2
Premature wear from misalignment
3
Corrosion in saline environments

合规与检测

tolerance
Radial runout: ≤0.15mm; Axial play: 0.05-0.15mm; Surface hardness: 55-60 HRC ±2 points
test method
ISO 19973-2 for reliability testing; ASTM E384 for hardness verification; DIN 51834 for grease compatibility

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

How often should track rollers be inspected?

Visual inspections should occur every 50 operating hours, with detailed measurements of wear and seal integrity every 250-500 hours depending on operating conditions.

What causes premature track roller failure?

Common causes include improper track tension, contamination of bearing seals, excessive side loading, operating on abrasive surfaces without cleaning, and using incompatible lubricants.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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初步技术归类
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URN:CNFX:ME:UNIT:TRACK_ROLLERS_BOTTOM_ROLLERS_