U‑Cup Balsele are compact, high-performance rod seals combining a shaped elastomer sealing lip with an integrated, fabric-reinforced base. The radial preload design ensures reliable sealing even at low pressures, while the reinforced support blocks extrusion. They offer excellent wear resistance, compatibility with standard hydraulic oils, and a broad temperature range (≈ –30 °C to +130 °C), making them ideal for demanding industrial and mobile cylinder applications
Rod/U-Cup:
Groove Diameter Outside40 mm
Signature StandardRUM300300-N8C0
Quality (10th Digit)-
TSS Article Number (3 to 9)M300300
Type of Article0
Root Groove Inside Diameter30 mm
Root Groove Outside Diameter40 mm
Root Groove Thickness7.5 mm
Groove Diameter Inside30 mm
Article GroupRU
Groove Thickness0 mm
Groove Width7.5 mm
Compound codeN8C0