Cylindrical grinding machine for internal groove processing 'SG1-IR'

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last updated：Jun 25, 2026

We can accommodate processed items with an outer diameter of φ12.5mm! The machine has a small installation area, allowing for effective use of factory space.

The "SG1-IR" is a cylindrical grinding machine developed for processing the inner groove of miniature bearings, utilizing years of technology and experience. It features a unique non-circular one-sided wedge dynamic pressure bearing developed by Seiko Instruments. The machine uses a highly rigid and stable grinding wheel spindle. Additionally, it has a small installation footprint, allowing for effective use of factory space, and achieves high-efficiency grinding through the incorporation of a high-speed loader powered by an AC servo motor and cam. 【Features】 ■ Centerless type for bearing processing ■ Utilizes non-circular one-sided wedge dynamic pressure bearings ■ Equipped with a high-speed loader powered by an AC servo motor and cam ■ Capable of processing workpieces with an outer diameter of up to φ12.5mm ■ Main body dimensions: 995mm(W) × 1,020mm(D) × 1,650mm(H) *For more details, please refer to the PDF document or feel free to contact us.

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【Processing Range】 ■2 Shoe Centerless Both End Face Drive 　・Workpiece Inner Diameter: Minimum φ2 / Maximum φ12.5 　・Workpiece Width: Minimum 1 / Maximum 7 　・Groove Radius: Minimum - / Maximum 3 *For more details, please refer to the PDF document or feel free to contact us.