RBS Buffer Seal
The RBS style rod buffer seals are a rectangular urethane buffer ring designed to absorb pressure fluctuations to protect the primary rod seal. Some sizes include a radial and axial slot, which faces the pressure, to relieve back pressure between the primary and buffer seal. This simple design is commonly found on older construction equipment.
SEAL INFORMATION | |
MATERIAL | 92A URETHANE |
TEMPERATURE RANGE | -40° TO +200° F |
PRESSURE RANGE | 0 TO 5,000 PSI |
SPEED | 3 FT/SEC |
Part Number | A Nom. ID | B Nom. OD | C Nom. Ht |
RBS-1.2X1.6 RBS-1.25X1.77SL RBS-1.50X2.00SL RBS-1.75X2.25SL RBS-2.00X2.50SL RBS-2.25X2.87SL RBS-2.50X3.12SL RBS-3.00X3.62SL RBS-4.0X4.4X.19 RBS-4.5X5.2X.17 RBS-6X6.7X.17 RBS-7.5X8.2X.17 RBS-10.45X11.20X.185 | 1-1/4 1-1/4 1-1/2 1-3/4 2 2-1/4 2-1/2 3 4 4-1/2 6 7-1/2 10.456 | 1.62 1.77 2 2-1/4 2-1/2 2.87 3.124 3.62 4.38 5.22 6.72 8.22 11.2 | .118 .114 .118 .118 .115 .19 3/16 .19 .19 .17 .17 .17 .185 |