Recent Blogs
Variable Speed or Cone Gearing Mechanism Explained: How It Works, Parts, Diagram and Uses
Variable Speed or Cone Gearing explained — how cone pulleys and variable speed bevel gears change ratio for lathes, conveyors and machine tools.
Curved Cone Pulleys Mechanism: How It Works, Parts, Formula, and Uses Explained
Curved Cone Pulleys give stepless belt-driven speed control on lathes, mills and textile drives. See the geometry, formula, worked example and design tradeoffs.
Four Speed Change Gear Mechanism Explained: How It Works, Parts, Formula, and Uses
Learn how a Four Speed Change Gear selects ratios in machine tools and gearboxes. Real lathe examples, formulas, ratio sizing, and troubleshooting from FIRGELLI.
Lathe Speed-motion Engagement Mechanism: How Headstock Gears, Norton Gearbox & Back Gear Work
Lathe speed-motion engagement explained: how the headstock gear train, sliding clusters, and feed selectors set spindle RPM and feed rate on production lathes.