SIG Vision Measuring Machine for Bearings | Optical & Geometric Dimension Measurement

Bearings are critical components in mechanical equipment, directly affecting operational stability, wear resistance, and service life across industries such as automotive, home appliances, and aerospace. Traditional measurement methods often involve complex procedures and limited accuracy, making it difficult to meet the high-precision and high-efficiency demands of modern bearing production.

SIG’s Vision Measuring Machine (OMM – Optical Measuring Machine) leverages advanced optical dimension measurement technology, covering full-scale geometric dimension measurement of bearings—including flatness and other key parameters—to provide an efficient and precise quality inspection solution that helps manufacturers improve product pass rates.

Non-Contact Measurement for Precision Bearings

As a professional optical measurement solution, the SIG Vision Measuring System adopts a non-contact approach, eliminating the risk of scratches or wear on bearing surfaces. This makes it especially suitable for high-precision bearing batch inspection. Equipped with an imported high-resolution camera, professional video measurement software, and a stable Indian black granite base, the system achieves measurement accuracy of 1.2+L/200μm and resolution down to 0.1μm, fully supporting multiple geometric dimension measurement requirements in bearing production.

Key Bearing Dimensions Measured by SIG OMM

1. Bearing Inner and Outer Ring Dimensions

• Measures inner diameter (ID), outer diameter (OD), and thickness
• Optical imaging captures contours to assist in dimensional deviation calculation
• Supports radial and axial chamfer dimension measurement using coordinate systems, arc drawing, and focal point calculation, complying with GB/T274-2000 standards

2. Flatness & Geometric Tolerances (GD&T)

• Flatness inspection of bearing end faces and ring faces
• Software algorithms analyze surface deviation
• Also supports parallelism, perpendicularity, and roundness measurement, providing data reference for bearing geometric tolerance evaluation

3. Rolling Elements and Cages

• Diameter and roundness measurement of balls and cylindrical rollers
• For cages: ball center distance, indexing angle deviation, and pitch circle diameter (PCD)
• Provides data basis for cage positioning and assembly clearance adjustment

4. Other Critical Bearing Dimensions

• Depending on bearing type (deep groove ball bearings, tapered roller bearings, etc.), measures raceway radius, angle, and pitch
• Adapts to diverse bearing inspection needs

Solving Common Bearing Inspection Challenges

• Insufficient accuracy in traditional measurement
  Traditional visual comparison, calipers, and basic projectors are affected by operator skill and tool limitations. SIG’s Vision Measuring Machine uses non-contact optical technology, imported linear encoders, and professional software to automatically capture contours and calculate dimensions, reducing human error and keeping deviation within micrometers.
• Low inspection efficiency
  Manual point-by-point measurement is slow and unsuitable for production lines. SIG OMM supports automated batch measurement — after workpiece fixturing, the system automatically measures multiple parts and multiple dimensions according to preset parameters, generates inspection reports, shortens cycle time, and reduces labor costs.
• Difficulty measuring complex features
  Bearing raceways, chamfers, and cages have complex geometries. SIG’s Video Measuring System features a programmable LED lighting system that adjusts brightness and pattern to clearly present workpiece contours, assisted by arc drawing and focal calculation functions for complex geometric dimension measurement.
• Poor data traceability
  Manual recording is prone to errors and data loss. SIG Vision Measuring Machine automatically stores measurement data, generates standardized inspection reports, and supports data export and traceability, facilitating process analysis and quality control.

About Sinowon

As an ISO9001:2015 certified company, Sinowon specializes in precision measurement. Our products hold EU CE certification and are exported to more than 60 countries and regions. Our Vision Measuring Machines integrate optical and geometric dimension measurement technology, serving bearing manufacturing from R&D and production to final quality inspection.

Sinowon continues to enhance the performance and user experience of our vision measurement systems, providing bearing-specific measurement solutions that help manufacturers improve product quality and production competitiveness.

For more details on SIG Vision Measuring Machine applications in bearing geometric dimension measurement, please visit Sinowon official website:
www.sinowon.com