Find HS Code and trade information for dial indicator probe

Dial Indicator Probe

A dial indicator probe, often simply called a probe, is the pointed component that comes into contact with the workpiece being measured when used with a dial indicator. It transmits deviations in position to the indicator, allowing for precise measurement of small distances and variations.

Material

Probes are commonly manufactured from:

• Hardened Steel: Most common material, providing good wear resistance and rigidity for general applications.
• Tungsten Carbide: Used for applications requiring exceptional hardness and wear resistance, such as measuring abrasive materials or high-volume production runs.
• Ceramic: Employed in non-conductive applications or when measuring sensitive surfaces that could be damaged by steel probes.

Purpose

The primary purpose of a dial indicator probe is to accurately detect and measure small changes in linear position. This is crucial for:

• Dimensional Inspection: Verifying the size and shape of parts against specified tolerances.
• Alignment: Ensuring proper positioning of components during assembly or machining.
• Runout Measurement: Determining the degree of circular deviation in rotating parts.
• Tool Setting: Precisely positioning cutting tools in machining operations.
• Part Setup: Establishing reference points on workpieces for machining or inspection.

Function

The probe functions as the interface between the workpiece and the dial indicator mechanism. When the probe contacts the surface, any movement of the probe relative to the indicator's stem is amplified by the indicator’s internal gears and displayed on the dial. The probe transmits this movement through a stem, typically featuring a threaded connection to the indicator.

Usage Scenarios

• Machining: Setting tool heights, checking bore diameters, verifying flatness of surfaces.
• Quality Control: Inspecting manufactured parts for conformance to specifications.
• Automotive Repair: Checking crankshaft runout, verifying wheel bearing play.
• Mold and Die Making: Precision alignment and inspection of mold components.
• Aerospace: Inspection of critical components with tight tolerances.

Common Types

• Pointed Probes: Most versatile, used for general-purpose measurements. Available in various point angles (60°, 90°, etc.) for accessing different features.
• Ball Probes: Provide a larger contact area, useful for measuring softer materials or surfaces prone to deformation.
• Spline Probes: Designed for measuring spline shafts and gears.
• Radius Probes: Used for measuring the radius of curved surfaces.
• Magnetic Base Probes: Feature a magnetic base for secure attachment to ferrous surfaces.
• Back Probes: Used for measuring the depth of holes or recesses.
• Digital Probe: A newer type that provides a digital readout of the measurement, eliminating the need for manual reading of the dial.

Dial indicator probes fall under instruments for measuring length, for use in the hand. These are typically used for precision measurement in mechanical engineering, quality control, and manufacturing processes.

Here are the relevant HS codes based on the provided reference material:

• 9017.30.40.00: Drawing, marking-out or mathematical calculating instruments; instruments for measuring length, for use in the hand; parts and accessories thereof: Micrometers, calipers and gauges: Micrometers and calipers. This code covers instruments like micrometers and calipers, which are used for precise length measurement.
• 9017.30.80.00: Drawing, marking-out or mathematical calculating instruments; instruments for measuring length, for use in the hand; parts and accessories thereof: Micrometers, calipers and gauges: Other. This code includes other instruments for measuring length not specifically classified as micrometers or calipers. A dial indicator probe would likely fall into this category if it doesn't meet the specific definition of a micrometer or caliper.

Tax Rate Details:

• 9017.30.40.00:
  • Basic tariff: 5.8%
  • Additional tariff: 25.0%
  • Additional tariff (after April 2, 2025): 30.0%
  • Total tariff: 60.8%
• 9017.30.80.00:
  • Basic tariff: 3.9%
  • Additional tariff: 25.0%
  • Additional tariff (after April 2, 2025): 30.0%
  • Total tariff: 58.9%