| SEAL INFORMATION | |
|---|---|
| MATERIAL | BUNA-N RUBBER |
| TEMPERATURE RANGE | -40° TO +240°F |
| PRESSURE RANGE | VARIES ACCORDING TO DIAMETRAL CLEARANCE |
| PART NUMBER | (prefix) - (Dash No.) |
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SCS offers material advantages of with our family of urethanes in standard o-ring sizes. The high extrusion resistance and related compounds eliminates the need for a back-up in many hydraulic applications, thereby simplifying installation and reducing groove width. Our unmatched temperature rating makes it suitable in applications where other urethanes fail. In addition, Our O-rings provides superior water resistance and compression set resistance in water-based fluids. Premium urethane o-rings are much less prone to spiral failure and installation damage compared with rubber o-rings. Dimensions and tolerances of our o-rings match up with AS568B specifications for diameter and cross-section and are used in the same grooves. 90D = 90 Durometer B = Bulk (Min Quantities) V = Viton (Fluorocarbon) T = 55-58 Shore D PTFE U = 90A Urethane V-BLACK = Black Viton (Fluorocarbon) EP = Ethylene Propylene S = Silicone -
SCS offers material advantages of with our family of urethanes in standard o-ring sizes. The high extrusion resistance and related compounds eliminates the need for a back-up in many hydraulic applications, thereby simplifying installation and reducing groove width. Our unmatched temperature rating makes it suitable in applications where other urethanes fail. In addition, Our O-rings provides superior water resistance and compression set resistance in water-based fluids. Premium urethane o-rings are much less prone to spiral failure and installation damage compared with rubber o-rings. Dimensions and tolerances of our o-rings match up with AS568B specifications for diameter and cross-section and are used in the same grooves. 90D = 90 Durometer B = Bulk (Min Quantities) V = Viton (Fluorocarbon) T = 55-58 Shore D PTFE U = 90A Urethane V-BLACK = Black Viton (Fluorocarbon) EP = Ethylene Propylene S = Silicone
SEAL INFORMATION MATERIAL BUNA-N RUBBER TEMPERATURE RANGE -40° TO +240°F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE PART NUMBER (prefix) - (Dash No.) -
SEAL INFORMATION MATERIAL BUNA-N RUBBER TEMPERATURE RANGE -40° TO +240° F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE SPEED 3 FT/SEC PART NUMBER (Prefix) - (Dash No.) -
Please specify 75 or 90 Durometer when ordering. Metric o-rings are offered in minimum package quantities (MP in chart).
SEAL INFORMATION - 70 DURO MOR-JIS STYLE MATERIAL 70A DURO NITRILE TEMPERATURE RANGE -40° to +220° F PART NUMBER (Prefix) - (ID) x (CS) SEAL INFORMATION - 70 DURO NITRILE MATERIAL 70A DURO NITRILE TEMPERATURE RANGE -40° to +220° F PART NUMBER (Prefix) - (ID) x (CS) SEAL INFORMATION - 75 DURO FLUOROCARBON MATERIAL 75A DURO FLUOROCARBON TEMPERATURE RANGE -20° to +400° F PART NUMBER (Prefix) - (ID) x (CS) SEAL INFORMATION - 90 DURO NITRILE MATERIAL 90A DURO NITRILE TEMPERATURE RANGE -40° to +220° F PART NUMBER (Prefix) - (ID) x (CS) -
Molded of 95A Durometer Urethane these back-up rings provide excellent extrusion resistance. Stretched for installation, they return quickly to their original size for easy installation.
NOTE: Sizes (Dash No.) corresponds to standard o-ring numbers.SEAL INFORMATION MATERIAL 95A DUROMETER URETHANE TEMPERATURE RANGE -65 ° TO +220°F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE PART NUMBER (Prefix) - (Dash No.) -
QR, BUNA-N QUAD RINGS
The four-lobed design of these seals provides twice the sealing surface of ordinary o-rings. They can be used in a variety of static and dynamic sealing applications including rotary, reciprocating or oscillating motion.
NOTE: Last three digits of part number corresponds to standard o-ring dash numbers (568-218 = QR-4218)
V = FLUOROCARBONSEAL INFORMATION MATERIAL BUNA-N RUBBER TEMPERATURE RANGE -40° TO +240°F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE PART NUMBER (Prefix) - (Dash No.) -
Molded in urethane, this wiper is flexible enough to easily snap into a groove yet tough enough to handle difficult rod wiping applications.
SEAL INFORMATION MATERIAL URETHANE TEMPERATURE RANGE -30° to +200° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) X (H) -
Our vee sets are the finest quality available in the industry. While all sets incorporate fabric reinforced rubber pressure rings, one or two urethane rings are included to improve low pressure sealing, when it is feasible. Most sets use nylon adaptors. Properly installed the pressure limits are as follows: 3,000 PSI = 4 VEES 5,000 PSI = 5 VEES 10,000 PSI = 6 VEES CONSTRUCTION CODE Example: FA-2U-3F-MA FA - 1 TOP ADAPTOR 2U - 2 URETHANE VEE RINGS 2F - 2 FABRIC VEE RINGS MA - 1 BOTTOM ADAPTOR V= FLUOROCARBON U= SPECIAL URETHANE VEE H= HYTREL W= WIPER INCLUDEDSEAL INFORMATION MATERIAL FABRIC REINFORCED RUBBER
URETHANE RING/NYLON ADAPTORSTEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 10,000 PSI SPEED 1.5 FT/SEC PART NUMBER (Type of Seal) (ID) (CS) X (Height) -
Suffix 'SH' designates slotted heel design, 'V' designates fluorocarbon material, and 'B' designates carboxilated nitrile material.
SEAL INFORMATION MATERIAL 90A URETHANE TEMPERATURE RANGE -40° to +200° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
Utilizing tough polyurethane, these seals possess excellent wear and abrasion resistance. Symmetrical in design they can be used in rod or piston applications
E = EUROPEAN URETHANESEAL INFORMATION MATERIAL URETHANE TEMPERATURE RANGE -22° to +212° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (H) -
Style HRU u-seals are precision molded from 80 Durometer Buna-N rubber. Sizes include those found in Army-Navy spec. AN6226 and narrow cross-section sizes found in J.I.C. cylinders and the popularly termed 'Huva Cup'. -
Metal Clad Wiper - Rubber LipSEAL INFORMATION MATERIAL RUBBER TEMPERATURE RANGE -40° to +240° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
Style 850 u-seals offer excellent resistance to extrusion and abrasion. The round cross-section expander offers energized sealing from zero to 5,000 psi.FLUOROCARBON = "V"
BFM = 58D DUROMETER FLUOROTREL -65° TO +275° F BHN = 85A DUROMETER HYDROGENATED NITRILE -50° to +320° F BPM = 58D DUROMETER POLYMYTE -65° to +275° F / -65° to +180° F IN WATER BASED FLUIDSSEAL INFORMATION MATERIAL 90A FLUOROCARBON | 95A URETHANE TEMPERATURE RANGE -20° to +400° F | -40° to +200° F PRESSURE RANGE 0 to 2,000 PSI | 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix)(CS) - (Inside Dia) - (Height) 
Standard - Height and cross section are equal, thus giving a square seal. Utilizes type 'D' lip Typical Part Number P25-02.500 
Deep - Utilizes the same 'D' lip, but the seal height is greater than the cross section, thus giving a retangular shape. Typical Part Number P25-02.500-37D 
Type B - Same dimensions as the Deep seal. Beveled lip design provides better film breaking. Utilizes type 'B' lip. Typical Part Number U25-02.500-37B -
Letter suffix:
T = Solid, ST = Split, TS = Spiral Cut, TW = .085 WideSEAL INFORMATION MATERIAL PTFE TEMPERATURE RANGE -325 ° TO +500°F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE PART NUMBER (Prefix) - (Dash No.)(Config)
CROSS SECTIONS 000 Series 1/16" C/S 100 Series 3/32" C/S 200 Series 1/8" C/S 300 Series 3/16" C/S 400 Series 1/4" C/S -
Style ST wiper rings are precision molded from 90A durometer urethane. Flexible enough to easily snap into a groove yet tough enough to handle difficult rod wiping applications. 'V' tagged wipers are constructed of fluorocarbon.
Product Codes ending in SH are designed with a Slotted Heel. The slots in the heel allow excess hydraulic fluid to bypass the wiper, preventing wiper blowout.
SEAL INFORMATION MATERIAL URETHANE / FLUOROCARBON TEMPERATURE RANGE URETHANE: -40° to +200° F
FLUOROCARBON: -20° to +400° FSPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) - (Alternative Mat.) -
Molded of 55D Durometer Hytrel, these back-up rings provide excellent extrusion resistance and tolerance to fluids such as phosphate esters, hydraulic oil and water. Stretched for installation, they return quickly to their original size for easy installation.
NOTE: Sizes (Dash No.) corresponds to standard O-ring numbersSEAL INFORMATION MATERIAL 55D HYTREL TEMPERATURE RANGE -65° TO +275°F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE PART NUMBER (Prefix) - (Dash No.) -
SCS offers several sizes of standard sized metal clad oil seals. These seals are for rotating shafts and are specifically designed to prevent oil or grease leakage at maximum pressures of 10 PSI and temperature of 240 deg. F. Additional style and sizes are available upon request.
SEAL INFORMATION MATERIAL RUBBER TEMPERATURE RANGE -40° to +240° F PRESSURE RANGE 10 PSI MAXIMUM SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) - (Style) 
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Molded from 90A nitrile, this seal provides high sealability in a symmetrical design suitable for rods or pistons.
SEAL INFORMATION MATERIAL 90A NITRILE TEMPERATURE RANGE -13° to +212° F PRESSURE RANGE 0 to 2,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (H) -
Molded of 90A Durometer Buna-N Rubber, these 'Parback®' Style Dished Cross Section back-up rings provide excellent extrusion resistance. Stretched for installation, they return quickly to their original size for easy installation.
NOTE: Sizes (Dash No.) corresponds to standard O-ring numbers.SEAL INFORMATION MATERIAL 90A BUNA-N RUBBER TEMPERATURE RANGE -40° TO +240°F PRESSURE RANGE VARIES ACCORDING TO DIAMETRAL CLEARANCE PART NUMBER (Prefix) - (Dash No.) -
NOTE: The 6000 piston cups are center punched if there is no hole size indicated.
SEAL INFORMATION MATERIAL BUNA-N RUBBER TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 150 PSI SPEED 3 FT/SEC PART NUMBER (Piston Cup Type)(Bore) - (Hole Size) -
Molded in urethane, this wiper features a double lip which prevents fluid that seeps by the rod seal from exiting the cylinder.
SEAL INFORMATION MATERIAL URETHANE TEMPERATURE RANGE -30° to +200° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) X (H) -
Style 800 U-seals are molded from tough, abrasion-resistant polyurethane. The four lobed expander ring energizes the sealing lips, even at zero pressure, to help prevent 'weeping' when the system is idle.FLUOROCARBON = "V"
SEAL INFORMATION MATERIAL 95A URETHANE | 95A FLUOROCARBON TEMPERATURE RANGE -65° to +220° F | -20° to +400° F PRESSURE RANGE 0 to 5,000 PSI | 0 to 2,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix)(CS) - (Inside Dia) - (Height) 
Standard - Height and cross section are equal, thus giving a square seal. Utilizes type 'D' lip. Typical Part Number U25-2.50 
Deep - Utilizes the same 'D' lip, but the seal height is greater than the cross section, thus giving a rectangular shape. Typical Part Number U25-2.50-37D 
Type SQB - Same dimensions as the Standard seal. Beveled lip design provides better film breaking. Utilizes type 'B' lip. Typical Part Number U25-2.50-SQB 
Type B - Same dimensions as the Deep seal. Beveled lip design provides better film breaking. Utilizes type 'B' lip. Typical Part Number U25-2.50-37B -
Piston cups are constructed of rubberized fabric. Cups with no hole are center punched.
NOTE: If Product number ends in 'ED' the piston cups are specially sized for use in EDBRO Cylinders.SEAL INFORMATION MATERIAL COTTON FABRIC & RUBBER TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 2,500 PSI SPEED 1.5 FT/SEC PART NUMBER (Piston Cup Type)(Bore) - (Hole Size) -
Intermediate and Wide Base T-Seals are designed to fit MIL-5514F o-ring glands only and interchange with 1 o-ring / 1 back-up ring and 1 o-ring / 2 back-up ring grooves, respectively.
SEAL INFORMATION MATERIAL BUNA-N RUBBER SEAL - HARD PLASTIC BACK-UPS TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
Molded in a tough urethane this seal employs an additional lip near the heel. The Twin Lip design provides stability, friction-reducing lube retention, and a contaminant blocker. VME - Secondary lip is further from heel than standard MRTU. NOTE: E = European Urethane
SEAL INFORMATION MATERIAL URETHANE TEMPERATURE RANGE -40° to +225° F
E: -22° to +212° FPRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (H) -
Our premium single-acting polyurethane rod seal incorporates an NBR energizer to seal at low pressures. The twin lip design provides stability and friction-reducing lube retention for dry rod sealing, and the included hard acetal backup ring resists extrusion. MRTUB is capable of pressures up to 10,000 psi in approved applications. Please consult Hercules Engineering for pressures above 6,000 psi.
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Used interchangeably for piston or rod sealing, these u-seals employ the same tough urethane material found in our Heavy Duty Rod and Piston U-Seals. -
One Piece Double Acting Piston Cups
This complete piston cup with a simple, one-piece construction serves the same purpose as a multi-assembly unit and is more economical with easy maintenance, dependability and long life. The unique piston cup consists of homogeneous rubber bonded to a zinc coated steel plate. The center hole may be enlarged to accommodate larger piston rods. Recommended for pneumatic and low-pressure hydraulic applications.SEAL INFORMATION MATERIAL RUBBER LIP, ZINC COATED STEEL PLATE TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 800 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (Bore Size) -
Designed to fit on one or two piece piston, this piston seal employs a nitrile seal for high sealability, nylon split back-ups for extrusion resistance, and two split bearing rings. No further support bearings required.
SEAL INFORMATION MATERIAL 70A NBR SEAL
NYLON BACK-UP & BEARINGTEMPERATURE RANGE -22° TO +212° F PRESSURE RANGE 0 TO 6,000 PSI SPEED 1.5 FT/SEC -
MCU Heavy Duty Metal Clad
Utilizing a sturdy metal case, these wipers are molded from the same high performance urethane used in our Heavy Duty U-seals. Built for severe service, these wipers are capable of surviving hostile environments.SEAL INFORMATION MATERIAL 92A URETHANE TEMPERATURE RANGE -65° to +230° F PART NUMBER (Prefix) - (Size) -
Featuring high pressure and high shock load capability, this seal utilizes the same twin lip design found in Hercules Sealing Products' RTU style. With the main body of the seal molded from high performance polyurethane, this seal incorporates a dynamically designed nitrile energizer and a tough polyacetal anti-extrusion ring. RTUB is capable of pressures up to 10,000 psi in approved applications. Please consult Hercules Engineering for pressures above 6,000 psi. MAXIMUM EXTRUSION GAP PRESSURE/MAX. DIAM. GAP: |2,400 PSI/.040| |3,750 PSI/.032| |6,000 PSI/.024| | 7,500 PSI/.016| |10,000 PSI/.010| -
A wide range of ST wipers are now offered in the slotted heel design. The slots in the heel allow excess hydraulic fluid to bypass the wiper, preventing wiper blowout.
SEAL INFORMATION MATERIAL 90A URETHANE TEMPERATURE RANGE URETHANE: -40° to +200° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) - (Slotted Heel) -
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.
GAP0.032" 0.015" 0.012" 0.009" -
Style HU seals feature a reverse bevel lip design and are molded from high quality urethane. The balanced symmetrical design makes them ideal for rod or piston applications. V=FLUOROCARBON -
Commonly used with metric o-rings, these back-up rings are made of virgin PTFE unless suffix specifies otherwise.
STANDARD IS VIRGIN PTFE
G = GLASS FILLED PTFE
B = BRONZE FILLED PTFE
CG = CARBON GRAPHITE FILLED PTFE
S = SPLIT RINGSEAL INFORMATION MATERIAL PTFE TEMPERATURE RANGE -100° to +500° F PART NUMBER (Prefix) - (ID) x (CS) x (W) SCS PART NUMBERS MBT - 3 X 1.5 X 1.25 Type of Seal Inside
DiameterCross
SectionWidth -
With a steel body, bronze liner and PTFE / lead overlay, these bushings possess excellent wearability and tremendous compressive strength.
SEAL INFORMATION MATERIAL BRONZE LINING
PTFE/LEAD OVERLAY
STEEL BACKINGTEMPERATURE RANGE -325° to +536° F SPEED 12 FT/SEC COMPRESSIVE STRENGTH 44,000 PSI PART NUMBER (Prefix) - (ID) x (OD) X (H) -
T-Seals are non-spiraling and extrusion resistant to 5,000 psi with improved tolerances.
IB = Intermediate Base, WB = Wide Base
Intermediate and Wide Base T-Seals are designed to fit MIL-5514F o-ring glands only and interchange with 1 o-ring / 1 back-up ring and 1 o-ring / 2 back-up ring grooves, respectively.SEAL INFORMATION MATERIAL BUNA-N RUBBER SEAL - HARD PLASTIC BACK-UPS TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix) - (Size) -
NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.
SEAL INFORMATION MATERIAL 15% GLASS FILLED PTFE SEAL RUBBER ENERGIZER TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 12 FT/SEC PART NUMBER (Piston Seal)(Type of Seal) - (Size) -
Specifically designed as piston seals, these u-seals are engineered to seal on their outside diameter. They offer extended service life and maximum reliability in piston sealing. MAXIMUM EXTRUSION GAP PRESSURE / MAX. DIAM. GAP: | 1,000 PSI/.032 | | 3,000 PSI/.015 | | 5,000 PSI/.012 | | 6,000 PSI/.009 | -
Molded in PTFE with a rubber energizer, this seal absorbs the shock of pressure spikes protecting the rod seal.
SEAL INFORMATION MATERIAL FILLED PTFE BUFFER
70A NITRILE
ENERGIZERTEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 12 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) x (H) -
This wiper is a single lip design molded from high grade nitrile and bonded to a carbon steel case.
SEAL INFORMATION MATERIAL NITRILE TEMPERATURE RANGE -30° to +220° F PART NUMBER (Prefix) - (ID) x (OD) X (H) -
The PS1800 provides low friction, high strength piston sealing. The PS1800 also provides double-acting piston sealing in a compact design that meets the requirements of ANSI/B93-32-1973. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.
SEAL INFORMATION MATERIAL 15% GLASS FILLED PTFE SEAL RUBBER ENERGIZER TEMPERATURE RANGE -40° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 12 FT/SEC PART NUMBER (Piston Seal)(Type of Seal) - (Size) -
The individual vee rings and adaptors listed here are the same high quality product found in our assembled vee packing sets. Stocking individual vee rings allows you to assemble sets to your specific requirements.
RING TYPES
T = TOP ADAPTOR - NYLON
B = BOTTOM ADAPTOR - NYLON/ NEO-FAB
F = NEO-FAB VEE RING
U = URETHANE VEE RING
R = RUBBER VEE RING.
(FOR MORE RUBBER VEE RINGS SEE OUR STYLE 835 RINGS)
SEAL INFORMATION MATERIAL NYLON, NEO-FAB URETHANE TEMPERATURE RANGE -35° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 1.5 FT/SEC PART NUMBER (Prefix) - (ID) (CS) (Type of Ring) -
Style 870 u-seals are precision molded from Buna-N synthetic rubber. Style 870 u-seal numbers conform in size to Army-Navy specification AN6226. -
SEAL INFORMATION MATERIAL RUBBER SEAL
STEEL CASETEMPERATURE RANGE -40° TO +225° F PRESSURE RANGE 10 PSI @ 1000 FPM PART NUMBER (Prefix) - (ID) X (OD) X (H) -
This light duty wiper is molded in polyurethane and features a double stepped shoulder to fit tightly in the gland throat.
SEAL INFORMATION MATERIAL URETHANE TEMPERATURE RANGE -22° to +212° F SPEED 3 FT/SEC PART NUMBER (Prefix) - (ID) x (OD) X (H) -
These parts are used as companion pieces for Cascade Vee Sets, used primarily as bearings. The bore sizes shown are nominal and are used in oversized bores of = .015 in. to = .030 in.
SEAL INFORMATION MATERIAL 60D POLYESTER TEMPERATURE RANGE -65° to +220° F SPEED FT/SEC PART NUMBER (Prefix) - (Bore Diameter) -
Molded from 93 Shore A polyurethane with a 70 Shore A energizer, this seal utilizes the same groove dimensions as a standard o-ring to T-seal. One or two Style 575 back-up rings may be used for wider grooves. Extrusion resistant by design, this seal also is resistant to rolling and twisting. Installation is an easy two step snap-in procedure with no need to re-size before insertion into the bore. NOTE: Piston diameter 'I' dimensions are given for pistons without wear rings.
F= Fluorotrel, WB= Wide BaseSEAL INFORMATION MATERIAL 93A URETHANE SEAL
70A NITRILE ENERGIZERTEMPERATURE RANGE -65° to +220° F PRESSURE RANGE 0 to 5,000 PSI PART NUMBER (Prefix) - (Size)