Overview
Concentricity testers are essential metrology instruments in precision manufacturing, designed to verify the alignment of cylindrical features relative to a central axis. These devices play a critical role in quality assurance for rotating components where even micron-level deviations can affect performance. Modern units combine mechanical fixturing with electronic measurement systems, offering both contact and non-contact measurement methods. Industry standards such as ISO 1101 and ASME Y14.5 define concentricity requirements that these instruments help validate. The automotive sector accounts for approximately 40% of concentricity tester applications, followed by aerospace (25%) and precision engineering (20%).
Structure and Working Principle
A standard concentricity tester consists of a rigid base plate, precision V-blocks or centers for part support, and high-sensitivity dial indicators or laser displacement sensors. The component under test is rotated while measurement probes track surface variations. Advanced models use motorized rotation and computerized data acquisition for automated measurement sequences. The working principle relies on comparing the actual part rotation to an ideal reference axis. Radial runout measurements are taken at multiple points along the component length, with software calculating concentricity values. Modern systems can achieve measurement uncertainties as low as ±0.5μm under controlled conditions.
Key Features
Premium concentricity testers offer features like temperature compensation, vibration damping, and automatic data logging. Digital models typically provide statistical process control (SPC) outputs and trend analysis capabilities. Some advanced systems incorporate machine vision for non-contact measurement of delicate or complex geometries. Critical specifications include measurement range (commonly 0-300mm), resolution (0.1-1μm typically), and maximum part weight capacity. Look for models with adjustable fixture configurations to accommodate different part families. Environmental stability features are particularly important for high-precision applications.
Application Areas
Primary industrial applications include drivetrain component manufacturing (shafts, gears, couplings), bearing production, and optical component alignment. In the medical device industry, concentricity testers verify implant components and surgical instrument precision. The energy sector uses them for turbine blade and rotor quality control. Emerging applications include electric vehicle motor component inspection and additive manufacturing part validation. Specialized versions exist for measuring concentricity in threaded components, where the pitch diameter alignment is critical for proper assembly and function.
Maintenance and Precautions
Regular maintenance should include bearing lubrication (every 500 operating hours), indicator calibration (biannually), and fixture alignment checks. Always clean measurement surfaces before use to prevent particulate contamination. Avoid exposing sensitive components to rapid temperature changes that could affect measurement accuracy. For optimal results, operate in controlled environments (20±1°C recommended) with minimal vibration. Store the instrument with protective covers when not in use. Most manufacturers recommend annual professional servicing for critical measurement applications.
B2B Procurement Guide
Industrial buyers should evaluate concentricity testers based on actual production requirements rather than maximum specifications. Consider future-proofing with modular systems that allow for upgrades. Request on-site demonstrations with your actual parts to verify performance. Lead times for custom-configured systems typically range from 4-12 weeks. Total cost of ownership should factor in calibration services, spare parts availability, and potential integration with existing quality control systems. For high-volume applications, automated loading options can significantly improve inspection throughput.
Related Manufacturers
- 主营：[]
- 主营：二次元测量仪、影像测量仪、龙门影像仪、2.5次元测量仪、光学影像仪、测量影像仪、三坐标测量机
- 主营：试验机、测量机、高低温试验箱、闪测仪、检测仪、测量仪、工业投影仪、二次元测量仪、圆度仪、圆柱度仪、刀具测量仪、影像测量仪、拼接测量仪、落地轮廓仪、手动影像仪、半自动影像测量仪、粗糙度轮廓仪、自动影像测量仪、冷热冲击试验箱、紫外老化实验机、双柱拉力机、恒温恒湿试验箱、伺服拉力机、光学影像测量、拉力试验机
- 主营：恒温恒湿试验箱、拉力试验机、冷热冲击箱、二次元测量仪、全自动影像测量仪、紫外老化试验箱
- 主营：试验机、轮椅双辊疲劳试验机、轮椅跌落试验机、53点风筒温度测试仪、轮椅静态稳定性测试机、轮椅静压强度试验机、轮椅刹车疲劳试验机、电吹风老化试验机、直发器疲劳测试机、电吹风开关在线试验机、脚轮行走试验机、聚氨酯轮行走耐磨试验机、车架震动试验机、轮胎行走寿命试验机、轮胎冲击试验机、自行车综合试验机、滑板车行走寿命试验机、电热毯耐压试验机、电热毯动负载试验机、电热毯发热线弯曲试验机、手表扭转疲劳试验机、手机跌落试验机、牛仔布滚筒跌试验机、电脑转轴试验机、拐杖疲劳试验机
- 主营：高速电主轴、橡胶硬度计、浮动主轴、精密打磨机、研磨刷、研磨油石
- 主营：传感器、电磁阀、保护器、圆度仪、地磅、电动脚手架、装载机电子秤、机械抓手、砌筑升降平台、光伏板升降机、内撑吊具、混凝土振动棒、打标机、研磨机、裁切机、平移门电机、超市防盗门、磨片磨头、滑移机、消防机器人、农业打药机、履带底盘、消防器材
- 主营：数显显微维氏硬度计、拉力试验机、硬度计、卧式投影测量仪、膜厚仪、水平仪、扭矩检定仪、同心度测量仪、二次元投影仪、分光测色仪、影像测量仪、投影测量仪、二次元影像测量仪、2.5次元影像测量仪、二次元测量仪、粘度计、金相显微镜、视频显微镜、电子显微镜、数显扭矩扳手、张力计、金相分析显微镜、CCD显微镜、Hvs-1000B显微维氏硬度计、万能工具显微镜
- 主营：密封试验仪、顶空气体分析仪、摩擦系数仪、热封试验仪、透气度测试仪、测厚仪、偏光应力仪、轴偏差测试仪、扭矩仪、冲击试验仪、耐内压力测试仪、颗粒耐水性测试仪、试验仪、测试仪、检测仪、拉力试验机
- 主营：消防机器人、履带运输车、巡检机器人、漏电探测仪、消防箱、消防服、破拆工具组、干粉灭火器、打药喷雾机、传感器、电磁阀、保护器、电动脚手架、装载机电子秤、砌筑升降平台、光伏板升降机、内撑吊具、混凝土振动棒、打标机、裁剪机、研磨机、压铆机、小型装载机、洗消剂、防爆风机
- 主营：光谱仪、色度仪、色差仪、激光粒度仪、测厚仪、圆度仪、光泽度仪、轮廓仪、粗糙度仪、影像测量仪、超声波探伤仪、测径仪、激光对中仪、平面度测量仪、对中仪、故障诊断仪、皮带轮对中仪、红外测油仪、合金分析仪、硬度计、色差计
- 主营：拉力试验机、三坐标、硬度计、光谱仪、金相分析仪、影像测量仪、轮廓仪、气动量仪、闪测仪、碳硫分析仪、熔深显微镜
- 主营：数显橡胶硬度计、精密打磨机、研磨刷、同心度仪、油石、永磁座
- 主营：清洁度分析系统、奥林马斯显微镜、RoHS2.0、影像测量仪、闪测仪、轴类光学机
- 主营：显微镜、测量机、测量系统、圆度仪、小型粗糙度仪、表面粗糙度仪、便携式粗糙度仪、日本三丰粗糙度仪sj210、陶瓷卡尺、高度卡尺、粗糙度一体机、数显千分尺293-240
- 主营：粗糙度仪、螺纹检测、通用量具