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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. Piston diameter “I” dimensions are given for pistons without wear rings.
15% Glass Filled PTFE Material | 1 11/16 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
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 some contaminant resistance. VME – Secondary lip is further from heel than standard MRTU. NOTE: E = European Urethane.
Urethane Material | 35 MM Nominal Inner Diameter | Rod U-Seal
Features
- Excellent low temperature performance
- Easy installation
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 Urethane.
Urethane Material | 35 MM Nominal Inner Diameter | U-Seal
Grade 8 nylon insert lock nut. The thread size is
1.125 in – 12 UNF and the nominal hex is
1.812 in.
Grade 8 lock nuts have a nylon insert in the nut that allows the nut to grab the fastener. This keeps the nut from backing off due to vibration.
End clearance on piston rings depends on ring design, material andapplication. The following end clearances are provided as a standard for hydraulic cylinder applications. When using iron piston rings, it is crucial to use the correct groove design for proper performance of the cylinder. Please use the following guidelines when cutting an iron piston ring groove.
GROOVE WIDTH: To permit the ring to slide freely into the groove, the groove must be at least 0.001” wider than the maximum piston ring width with a tolerance of +0.003”/-0.000”.
GROOVE DEPTH: Grooves must be at least 0.015” deeper than the maximum radial wall thickness of the piston ring with a tolerance of +0.003”/-0.000”. This is to avoid any possibility of the ring bottoming in the groove when the ring is compressed to its working diameter.
RADIAL CLEARANCE: The radial clearance between the cylinder bore and piston should be less than 1/3 of the radial wall thickness of the piston ring to ensure sealing effectiveness.
Iron Material | 0.11 in Cross Section | Piston Seal
Molded from 93 Shore A polyurethane with a 70 Shore A energizer, this seal utilizes the same groove dimensions as a standard o-ring or T-seal. One or two Style 575 back-up rings may be used for wider grooves. Extrusion resistant by design, this seal is also 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. Piston diameter “I” dimensions are given for pistons without wear rings.
93A; 70A Durometer | Urethane Material | 5 1/2 in Nominal Inner Diameter | Piston Seal
Features
- Easy assembly
- Low friction capabilities
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.
92A Durometer | Urethane Material | 2 1/4 in Nominal Inner Diameter
Features
- Used in Heavy Duty U-seals
- Capable of surviving hostile environments
- Molded from the high performance urethane
The Hallite 533 is capable of withstanding high side loads and preventing metal-to-metal contact between the piston and the bore or the rod and the gland.
The PA 533 material is heat stabilised 33% glass reinforced nylon 66, which offers excellent bearing properties.
Compatible with hydraulic and lubricating oils. The PA 533 material is not recommended for use in water based fluids (HFA) or where significant water is present, due to the swell of the nylon.
