P18-4.00SQB
P Urethane U-Seal, 4 X 4-3/8 X 3/16, SQB Style
Brand: HPSI
HPSI
The P Polyseals are molded from abrasion-resistant 93A polyurethane and designed for reliable hydraulic sealing in dynamic applications. A four-lobed expander ring energizes the sealing lips, even at zero pressure, helping prevent leakage when the system is idle. Optional SKF® 93A high-temperature urethane and SKF® 95A premium urethane materials are available for demanding operating conditions.
The SQB profile shares the same square dimensions as the Standard profile but incorporates a Type B beveled sealing lip. The beveled lip provides improved oil film breaking for enhanced sealing performance while maintaining the Standard profile dimensions.
Typical Part Number: P25-2.50SQB
| Cross Section | : | 3/16 in |
| Height | : | 3/16 in |
| Inside Diameter | : | 4 in |
| Lip Style | : | SQB |
| Material | : | Urethane/Nitrile |
| Outside Diameter | : | 4-3/8 in |
| Part Number | : | (Prefix)(C/S)-(ID)-(H) |
| Pressure Range | : | 0 TO 5,000 PSI |
| Temperature Range | : | -65° to 220°F |
- Square profile fits standard seal grooves
- Type B beveled sealing lip improves oil film breaking
- Four-lobed expander ring energizes sealing lips at zero pressure
- Helps reduce leakage during idle conditions
- Abrasion-resistant 93A polyurethane provides extended wear life
