行业组件数据 · 2026

直线轴承/滑块

繁體:直線軸承/滑塊

直线轴承和滑块是机械部件,用于沿固定轴实现精确的直线运动,摩擦极小。

技术定义与适配语境
典型 直线轴承/滑块 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。

直线轴承和滑块是机械部件,设计用于沿固定轴以最小摩擦实现精确的直线运动。它们由包含滚动元件(滚珠或滚柱)的外壳(滑块)组成,滚动元件沿导轨或轴移动。这些部件在导向系统中至关重要,用于保持对齐、减少磨损,并确保自动化机械和设备中的精确定位。 直线轴承基于滚动接触原理工作,滚珠或滚柱在滚道内循环,将滑动摩擦转化为滚动摩擦。这减少了阻力,并允许平滑、受控的直线运动。滑块外壳引导沿导轨的运动,而预紧调整可最小化间隙并增强刚性。

组件规格

定义
直线轴承和滑块是机械部件,设计用于沿固定轴以最小摩擦实现精确的直线运动。它们由包含滚动元件(滚珠或滚柱)的外壳(滑块)组成,滚动元件沿导轨或轴移动。这些部件在导向系统中至关重要,用于保持对齐、减少磨损,并确保自动化机械和设备中的精确定位。

直线轴承基于滚动接触原理工作,滚珠或滚柱在滚道内循环,将滑动摩擦转化为滚动摩擦。这减少了阻力,并允许平滑、受控的直线运动。滑块外壳引导沿导轨的运动,而预紧调整可最小化间隙并增强刚性。
工作原理
Linear bearings operate on the principle of rolling contact, where balls or rollers circulate within a raceway to convert sliding friction into rolling friction. This reduces resistance and allows for smooth, controlled linear motion. The slider housing guides the movement along a rail, while preload adjustments minimize play and enhance rigidity.
材料
外壳:铝合金、钢或不锈钢滚动元件:铬钢、陶瓷或不锈钢球密封件:橡胶或聚氨酯用于防污染导轨:淬硬钢或不锈钢精密磨削。
Speed
Up to 5 m/s
Lubrication
Grease or oil, maintenance intervals: 500-2000 km
Load Capacity
Dynamic: 500-5000 N, Static: 1000-10000 N
Repeatability
±0.01 mm to ±0.001 mm
Accuracy Grade
Normal, Precision, High-Precision
Operating Temperature
-20°C to 80°C
标准
ISO 14728DIN 645

行业分类与别名

直线轴承/滑块 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

Contamination from dust, chips, or liquids->Increased friction, scoring of raceways, and eventual seizing->Use protective seals, implement regular cleaning schedules, and operate in controlled environments
Misalignment during installation->Uneven load distribution, accelerated wear, and reduced positioning accuracy->Follow precise alignment procedures during assembly, use alignment tools, and verify with measurement instruments
Overloading beyond specified limits->Plastic deformation of rolling elements or housing, leading to catastrophic failure->Design systems within load ratings, incorporate overload protection devices, and conduct regular load monitoring

工业生态与工程逻辑

0
Contamination leading to increased friction and wear
1
Improper installation causing misalignment and reduced accuracy
2
Overloading beyond rated capacity resulting in premature failure
3
Inadequate lubrication causing overheating and seizing

合规与检测

tolerance
ISO tolerance grades: IT5 to IT7 for precision applications, with runout tolerances as per ISO 1101
test method
Testing per ISO 14728 for load capacity, durability, and accuracy; vibration testing per ISO 10816; environmental testing for temperature and contamination resistance

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

What is the difference between linear ball bearings and linear roller bearings?

Linear ball bearings use balls for lower friction and higher speeds, ideal for light to medium loads. Linear roller bearings use cylindrical rollers for higher load capacity and rigidity, suitable for heavy-duty applications but with slightly higher friction.

How do I select the right linear bearing for my application?

Consider load capacity (dynamic and static), speed requirements, accuracy grade, environmental conditions (e.g., temperature, contamination), and compatibility with existing rails or shafts. Consult manufacturer datasheets and industry standards like ISO 14728.

What maintenance is required for linear bearings?

Regular lubrication every 500-2000 km of travel, inspection for wear or contamination, and cleaning of rails. Use recommended greases or oils, and replace seals if damaged to prevent debris ingress.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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