Internal Bore Roughness Tester

The internal bore roughness tester scans the microscopic profile of the hole wall using a stylus, converting height variations into electrical signals. These signals are processed to calculate parameters such as Ra and Rz. It is used to evaluate the machining quality of internal surfaces, such as drilled holes and bushings, and plays a critical role in controlling fit accuracy and lubrication effectiveness in mechanical manufacturing and mold industries.
Selection
When selecting, consider matching the aperture range with the probe size, ensuring the measurement depth meets the workpiece requirements, supporting roughness parameter types that cover industry standards, having a rigid body suitable for on-site environments, and software capable of outputting common data formats for easy recording and analysis.

Terms

Standards

Instruments

It can be extended by 50mm, and up to 2 pieces can be installed to achieve 100mm deep hole measurement; it is suitable for deep hole internal surface roughness detection, and needs to cooperate with the measurement platform to ensure Stability.

$ 157.00

It can measure the groove surface roughness with a groove width greater than 3mm and a groove depth less than 10mm, and is compatible with flat and cylindrical measurement. It can be used with the measurement platform to achieve accurate detection.

$ 425.00

Measurement range from 5mm, depth up to 22mm, suitable for a variety of Roughness Gauge to achieve profiled surface detection.

$ 275.00

It can measure planar and cylindrical surface roughness, with a minimum diaMeter of 5mm and a maximum depth of 22mm, and supports a variety of Sensors to adapt to different workpiece shapes.

$ 332.00

Measurement range 20~ 1000J/m ², resolution 0.1J/m ², with Touchscreen operation and thermal printing function, suitable for a variety of Cardboard Internal Bond Strength accurate determination.

$ 3239.00

It can measure the surface roughness of the hole with an aperture greater than 2mm, and the maximum depth is 9mm. It supports both flat and cylindrical measurement, and is suitable for a variety of special-shaped surface detection needs.

$ 425.00

High-speed DSP processor is used to improve Measurement speed, support Ra0.05-10.0 μ m Measurement range, Sensor host integrated design is convenient for field use, and can measure the cone surface and groove of the outer circle.

$ 1145.00

Using DSP chip for control and data processing, Measurement range up to 160μm, support Multi-ParaMeter measurement, compatible with multiple national standards, built-in large-capacity lithium battery can work continuously for more than 50 hours.

$ 1243.00

DSP chip control, Measurement speed and low power consumption; Support 160μm large-range measurement, up to 320μm; Multi-ParaMeter measurement function, compatible with ISO, DIN, ANSI, JIS multiple national standards.

$ 1364.00

Small size only 106 * 70 * 24mm, weight 200 grams easy to carry; measurement of outer circle, cone, plane and groove, Indication Error ≤ +/- 15%, using piezoelectric crystal Sensor to ensure measurement Reliability.

$ 687.00

Provide 25, 40, 70, 100 four profile specifications, size 87x87x2.5mm, weight only 60 grams, Portable design is convenient for quick comparison and evaluation on site.

$ 505.00

Built-in High Accuracy Inductance Sensor, Measurement range 0~ 800μm, accuracy +/- 5% or 5μm, support USB, RS-232 and Bluetooth data transmission, with average calculation and automatic shutdown function.

$ 480.00

Using electromagnetic force equilibrating Sensor, with automatic timing internal Adjustment, internal use of non-magnetic weight to ensure the accuracy of calibrating, and equipped with anti-static Glass and hollow star pan to reduce airflow and static interference, improve Weighing Accuracy.

$ 2010.00

Glass shell with high strength can withstand temperature up to 80 ℃, can be filled with internal reference solution to prolong service life, and is suitable for the measurement of complex samples such as colloids.

$ 428.00

Adopt a new generation of High Accuracy Sensor to ensure stable and reliable weighing, with a reaction time of less than 2 seconds, a fully automatic internal calibration function triggered by time and temperature, and support for a variety of weighing units.

$ 935.00

Articles

Roughness Measurement Instrument Selection: Contact vs. Non-Contact
This article introduces the differences between contact and non-contact methods when selecting a roughness measuring instrument.
Comparison of Selection Parameters for Stylus and Laser Roughness Measuring Instruments
Stylus-type roughness measuring instruments perform contact scanning to measure two-dimensional profile parameters in accordance with standards such as ISO 4287, while laser-based instruments utilize non-contact optical principles and refer to ISO 25178.
Contact angle measuring instrument measures the surface wettability of paper.
The contact angle goniometer evaluates wettability by measuring the contact angle of a liquid droplet on the surface of paper, based on the principle of Young's equation. The static drop method is commonly used for measurement, requiring control over sample flatness, environmental conditions, and droplet volume, while also considering the influence of surface roughness.
Surface Roughness Tester Evaluates the Impact of Substrate on Adhesion
This article primarily explores how the surface roughness of the substrate affects the adhesion of coatings or bonds.
Paper smoothness and roughness
Paper smoothness and roughness are key parameters that describe the flatness of the paper surface, and they complement each other. Smoothness refers to the extent to which the paper surface approaches an ideal plane, while roughness reflects the amplitude and frequency of surface irregularities.