Used primarily as an anti-extusion device for u-seals, these back-up rings combine high performance with very low friction. 'ST' suffix designates a split ring.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | PTFE |
| TEMPERATURE RANGE | -100° TO +500°F |
| PRESSURE RANGE | VARIES ACCORDING TO DIAMETRAL CLEARANCE |
| PART NUMBER | (prefix) - (Dash No.) (config.) |
U-Seal Retainer Ring
These rings are split for ease of installation and are retained in a groove. Their use is primarily to retain a single acting piston seals. Commonly used with UFN style piston seals.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | ACETAL |
| TEMPERATURE RANGE | -22 ° TO +212°F |
| SEAL RETAINER CROSS REFERENCE | |
|---|---|
| Hercules Sealing Prefix | Ramsey Spirolox Prefix |
| VH- | UR- |
| WH- | RR- |
| WHM- | RRN- |
| WHT- | RRT- |
| SEAL RETAINER CROSS REFERENCE | |
|---|---|
| Hercules Sealing Prefix | Ramsey Spirolox Prefix |
| VS- | US- |
| WS- | RS- |
| WST- | RSN- |
| WSM- | RST- |
These seals are specifically designed with a second lip on their inside diameter and engineered to attain maximum life and reliability in dynamic rod sealing. This feature results in reduced leakage, less friction, increased stability and prevents air and contaminants from entering the cylinder.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | 92A URETHANE |
| TEMPERATURE RANGE | -65° to +230° F |
| PRESSURE RANGE | 0 to 6,000 PSI |
| SPEED | 3 FT/SEC |
| PART NUMBER | (Prefix)(CS) - (ID) - (Height) |
| MAXIMUM EXTRUSION GAP | ||||
|---|---|---|---|---|
| PRESSURE | 1000 PSI | 3000 PSI | 5000 PSI | 6000 PSI |
| MAX DIAM. GAP |
0.032" | 0.015" | 0.012" | 0.009" |
These seals are specifically designed to seal on their inside diameter and engineered to attain maximum life and reliability in dynamic rod sealing.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | 92A URETHANE |
| TEMPERATURE RANGE | -65° to +230° F |
| PRESSURE RANGE | 0 to 6,000 PSI |
| SPEED | 3 FT/SEC |
| PART NUMBER | (Prefix)(CS) - (ID) - (Height) |
These seals are specifically designed to seal on their inside diameter and engineered to attain maximum life and reliability in dynamic rod sealing. They employ a hard plastic I.D. back-up ring to reduce the possibility of extrusion.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | 92A URETHANE |
| TEMPERATURE RANGE | -40° to +230° F |
| PRESSURE RANGE | 0 to 6,000 PSI |
| SPEED | 3 FT/SEC |
| PART NUMBER | (Prefix)(CS) - (ID) - (Height) |
This wiper is a heavy duty scraper molded from a hard nylon material.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | NYLON |
| TEMPERATURE RANGE | -40° to +212° F |
| SPEED | 3 FT/SEC |
| PART NUMBER | (Prefix) - (ID) x (OD) X (H) |
Internal Retainer Ring
External Retainer Rings
Installed as 2 halves in a closed groove, these bushings are found in many Japanese lift trucks.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | 660 BRONZE |
| SPEED | 3 FT/SEC |
| PART NUMBER | (Prefix) - (ID) x (OD) X (H) |
Hard nylon back-up rings for use with U-seals.
| SEAL INFORMATION | |
|---|---|
| MATERIAL | NYLON |
| TEMPERATURE RANGE | -67° to +212° F |
| PRESSURE RANGE | 0 to 5,000 PSI |
| SPEED | 3 FT/SEC |
| PART NUMBER | (Prefix) - (ID) - (C.S) - (W) |
| SCS PART NUMBERS | ||||||
|---|---|---|---|---|---|---|
| MBN | - | 75 | X | 2.5 | X | 2.5 |
| Type of Seal | Inside Diameter |
Cross Section |
Width | |||
