Technology / product information

NIDEC OKK MACHINERY (THAILAND) Co., Ltd., a member of the Nidec Group, is headquartered in Samut Prakan, Thailand, and specializes in delivering products utilizing precision machining technology.
In broaching processes, which involve precise internal shaping of splines and gears, verifying fit accuracy is critical for quality improvement. The BPD (Between Pin Diameter) measurement method, which uses pins to measure tooth thickness, is an effective technique for accurately evaluating the actual fitting condition.

■ Features
・Measurement using pins: Accurately measures the minimum tooth thickness in the lead direction, improving fitting accuracy.
・Enhanced reliability: Ideal for evaluating the precision of broached spline holes, ensuring long-term reliability of products.
・Simple measurement method: Using pins instead of balls allows for more efficient measurement operations.

■ Specifications
・Equipment used: Standard 25 mm parallel block and measurement pins
・Calculation example: For BPD of 35 mm using a φ1.5 mm pin
Formula: 35 (BP) - 25 (parallel block) + 2 = 12 mm
・Measurement accuracy: High-parallelism block gauges combined with measurement pins ensure high precision.

■ Application Examples
The BPD measurement method improves fitting accuracy for broached products, enabling the supply of high-quality splines and gears to the market. This precise measurement technique significantly contributes to improving the reliability of customer products.

NIDEC OKK MACHINERY (THAILAND) Co., Ltd. helps enhance manufacturing quality through high-precision measurement technologies.

For more details, please download the PDF or feel free to contact us.