5 articles
Technical Articles
In-depth reference material for engineers, maintenance teams and OEM designers working with hydraulic, pneumatic and rotary sealing systems.
- Technical ArticlesSakagami Seal Installation InstructionsStep-by-step installation method for Sakagami packings, ST/STK and SMJ seals, rotary joints, SDR/SCK/SCB/SDB wipers, S-LEEVE bearings and KCS/YCS/PCS cushion seals.9 min · Updated 2026-08-13
- Technical ArticlesJapanese Industrial Seals: Finding Replacements for NOK, Sakagami and Machine Tool SealsHow to identify and replace Japanese oil seals and hydraulic packings — NOK type codes, Sakagami profiles, JIS glands, machine tool seals and what evidence we need.11 min · Updated 2026-08-11
- Technical ArticlesHow an O-Ring Actually Seals — Squeeze, Reaction Force and Pressure EnergisingThe mechanics behind O-ring sealing: installed squeeze, reaction force, pressure energising, groove fill, hardness against extrusion, surface finish targets and compression set.9 min · Updated 2026-08-08
- Technical ArticlesChamfers, Lead-Ins and O-Ring Installation DamageLead-in chamfer angles and dimensions by O-ring section, assembly rules for threads and cross-drilled ports, and how to tell installation damage apart from genuine service failure.8 min · Updated 2026-08-08
- Technical ArticlesO-Ring Groove Design — Squeeze, Fill, Elongation and Back-Up RingsWorking reference for O-ring groove design: piston, rod, flat-face and dovetail configurations, squeeze and groove fill targets, elongation limits, three-sided grooves and back-up ring selection.10 min · Updated 2026-08-08