Urethane O Ring 441 At 70 Shore D Hardness Handles Hydraulic Fluids And Mild Acids Without Breaking A Sweat Featuring Killer Tensile Strength And Rock Solid Compression Sealing In A Bulk Pack Of Two Hundred Fifty

Bulk Pack Of Two Hundred Fifty Urethane O Rings
✔️ 70 durometer hardness seals handle oil and resist grinding wear well

These cast polyurethane rings measure seven inch ID spanning half inch OD with a quarter inch cross section. They provide rock solid compression sealing for heavy duty trucks, factory presses, and excavators running high hydraulic pressure. The material grips smooth shafts tightly while resisting surface tear during axial movement.

✅ Up to six thousand psi tensile rating prevents blowouts under stress
✅ Three hundred fifty to six hundred fifty percent elongation absorbs shock loads
✅ Ten to twenty five percent compression loss keeps tight seals over time
✅ Exceptional grease slide durability outlasts standard rubber compounds

💡 What drives engineers to pick cast polyurethane over Buna-N for tough hydraulic applications?

This handy swap holds up under massive clamp loads while gripping smooth shafts without scoring.

- Heavy mill cut resistance preserves inner lip geometry during rapid reciprocating motion - Consistent ten percent compression set maintains radial force across wide temperature swings - Reliable mineral oil tolerance keeps compound integrity intact during routine washdown - Massive sixty five percent stretch factor wraps around tight mounting radii without thinning✝️