Industry-Verified Manufacturing Data (2026)

Speedometer

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Speedometer used in the Motor Vehicle Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Speedometer is characterized by the integration of Stepper Motor and Printed Circuit Board (PCB). In industrial production environments, manufacturers listed on CNFX commonly emphasize Plastic (housing, dial) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An instrument that measures and displays the instantaneous speed of a vehicle.

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Product Specifications

Technical details and manufacturing context for Speedometer

Definition
A critical component of the vehicle's gauge cluster that provides real-time visual feedback to the driver regarding the vehicle's road speed, typically measured in kilometers per hour (km/h) or miles per hour (mph). It is essential for safe operation and adherence to speed limits.
Working Principle
Modern speedometers typically operate electronically. A sensor (often a Hall-effect or magnetic sensor) mounted on the transmission or a wheel detects rotational speed. This signal is sent to the vehicle's electronic control unit (ECU), which processes it and sends a corresponding signal to the speedometer's display mechanism (e.g., a stepper motor driving a needle on an analog dial or a digital display).
Common Materials
Plastic (housing, dial), Metal (needle shaft, bezel), Glass or Polycarbonate (lens), Electronic components (PCB, stepper motor, LEDs)
Technical Parameters
  • The measurement range and units displayed (e.g., 0-260 km/h). Accuracy and calibration are critical parameters. (km/h or mph) Per Request
Components / BOM
  • Stepper Motor
    Precisely positions the needle based on electronic signals from the ECU.
    Material: Metal, Copper, Magnets
  • Printed Circuit Board (PCB)
    Processes the input signal and controls the stepper motor or digital display.
    Material: Fiberglass, Copper, Electronic Components
  • Dial Face
    Provides the calibrated scale (numbers and markers) for speed reading.
    Material: Plastic or Metal, printed
  • Needle
    The moving pointer that indicates the current speed on the dial.
    Material: Plastic or Lightweight Metal
Engineering Reasoning
0-300 km/h with ±1.5% accuracy at 25°C ambient temperature
Hall effect sensor saturation at 0.35 Tesla magnetic flux density or 150°C operating temperature
Design Rationale: Hall effect sensor voltage output nonlinearity due to magnetic saturation or semiconductor junction thermal breakdown at 150°C
Risk Mitigation (FMEA)
Trigger Electromagnetic interference from adjacent 400V AC motor windings generating 50 mV noise voltage
Mode: Hall effect sensor signal corruption causing 15% speed reading error
Strategy: Shielded twisted-pair cabling with 90 dB attenuation at 50-60 Hz and ferrite choke filtering
Trigger Vibration-induced fatigue at 200 Hz resonance frequency exceeding 5 g acceleration
Mode: Solder joint fracture on PCB causing intermittent signal loss
Strategy: Conformal coating with silicone elastomer (Shore A 40 hardness) and vibration isolation mounting with 70% transmissibility reduction at 200 Hz

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Speedometer.

Speed Gauge Speed Indicator high-precision automotive speedometer vehicle speed measurement instrument stepper motor speedometer for cars durable plastic housing speed gauge electronic PCB speed display system

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Gauge Cluster
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 5 bar
other spec: Speed range: 0-300 km/h, Vibration resistance: 5g, IP rating: IP67
temperature: -40°C to +85°C
Media Compatibility
✓ Automotive engine oil ✓ Hydraulic fluid ✓ Compressed air
Unsuitable: High-concentration abrasive slurry environments
Sizing Data Required
  • Vehicle type and application
  • Required speed measurement range
  • Mounting interface and electrical requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Sensor Signal Loss
Cause: Corrosion or contamination of the vehicle speed sensor (VSS) connector, or internal sensor failure due to heat, vibration, or moisture ingress, leading to erratic or zero speed readings.
Gauge Mechanism Failure
Cause: Wear or binding of the stepper motor, gear train, or needle pivot due to mechanical fatigue, dust accumulation, or lack of lubrication, resulting in inaccurate needle movement or complete stoppage.
Maintenance Indicators
  • Erratic or fluctuating needle movement while driving at a constant speed
  • Complete failure of the needle to move, or the needle stuck at zero or maximum, accompanied by an illuminated check engine or ABS warning light
Engineering Tips
  • Regularly inspect and clean the vehicle speed sensor (VSS) and its electrical connector to prevent corrosion and ensure a reliable signal; use dielectric grease on connectors in high-moisture environments.
  • Ensure the speedometer cable (if mechanical) is properly lubricated and routed without sharp bends to reduce wear, or for electronic units, verify the instrument cluster's power and ground connections are secure to prevent voltage spikes or intermittent operation.

Compliance & Manufacturing Standards

Reference Standards
ISO 2575:2010 (Road vehicles - Symbols for controls, indicators and tell-tales) SAE J1229 (Speedometer and Odometer Test Procedure) ECE Regulation 39 (Uniform provisions concerning the approval of vehicles with regard to the speedometer equipment)
Manufacturing Precision
  • Speed indication accuracy: +/- 4% of actual speed at 40 km/h to 120 km/h
  • Odometer accuracy: +/- 2% of distance traveled
Quality Inspection
  • Calibration verification against reference speed source
  • Environmental testing (temperature, vibration, humidity per ISO 16750)

Factories Producing Speedometer

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

P Procurement Specialist from Australia Feb 12, 2026
★★★★★
"Standard OEM quality for Motor Vehicle Manufacturing applications. The Speedometer arrived with full certification."
Technical Specifications Verified
T Technical Director from Singapore Feb 09, 2026
★★★★★
"Great transparency on the Speedometer components. Essential for our Motor Vehicle Manufacturing supply chain."
Technical Specifications Verified
P Project Engineer from Germany Feb 06, 2026
★★★★★
"The Speedometer we sourced perfectly fits our Motor Vehicle Manufacturing production line requirements."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

10 sourcing managers are analyzing this specification now. Last inquiry for Speedometer from Turkey (1h ago).

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Frequently Asked Questions

What materials are used in this speedometer's construction?

This speedometer features a durable plastic housing and dial, metal needle shaft and bezel, glass or polycarbonate lens, and electronic components including PCB and stepper motor for reliable performance.

How does the stepper motor contribute to speedometer accuracy?

The stepper motor provides precise needle movement by converting electronic signals from the vehicle's speed sensor into exact rotational positions, ensuring accurate real-time speed display without lag or drift.

What are the main components in the speedometer's BOM?

The bill of materials includes the dial face for speed markings, needle for visual indication, printed circuit board (PCB) for electronic control, and stepper motor for precise needle movement.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Motor Vehicle Manufacturing sector.

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