When you need a dependable upgrade from a standard O-ring in a rod sealing application, this T-seal delivers a stronger, more stable seal to keep your equipment running without unnecessary downtime. Built from durable Buna-N with scarf-cut nylon back-ups, this design works well in retrofits where spiraling or extrusion would normally cause failures. Customers choose this style because it holds pressure, stays put in the groove, and performs reliably in demanding hydraulic motion.
This 90-durometer black Buna-N sealing element provides proven resistance to hydraulic oils while maintaining low compression set. For equipment owners, that means less rework, fewer seal changes, and longer running intervals in cylinders that cannot afford leaks.
Operating temperature: -35° to +265°F (–37° to +129°C)
The Buna-N elastomer and nylon back-ups provide solid performance across typical mobile and industrial hydraulic temperatures.
Material and performance details
The sealing element is Buna-N (Nitrile), black, engineered for stable sealing in hydraulic oils and petroleum-based fluids. The rigid scarf-cut nylon back-ups improve extrusion resistance and stabilize the T-base during installation, making this a dependable drop-in upgrade for O-ring style grooves.
Excellent resistance to:
• Hydraulic oils
• Petroleum-based lubricants
• Transmission fluids
• Water-glycol fluids (limited depending on temperature)
Limited capability with:
• Brake fluids
• Some phosphate ester fluids
Not compatible with:
• Strong acids
• Strong solvents
• Ketones
Sizes and measurements
• Cross Section (Ht): 7.10mm (0.210 in)
• Inside Diameter (ID): 66mm (2.600 in)
• Outside Diameter (OD): 76.70mm (3.02 in)
• Part Number: TR032 TR-032
• Associated O-Ring Size: 334
Applications and use cases
This T-seal is commonly used in hydraulic cylinders where a standard O-ring cannot hold up to side-load, pressure spikes, or dynamic rod movement. Typical uses include mobile hydraulic equipment, agricultural cylinders, industrial cylinders, refuse trucks, compactors, and any machinery needing dependable sealing in reciprocating rod applications.
Key specifications
• Material: Buna-N with nylon back-ups
• Durometer: 70
• Color: Black
• Temperature range: -35° to +265°F (–37° to +129°C)
• Pressure capability: Up to 5,000 psi
• Velocity: Up to 0.4 ft/sec
• Groove style: O-ring retrofit
Here are the most common real-world uses for a TR-032 T-seal (334 size) in hydraulic rod applications. These are the environments where customers most often install this style of seal when an O-ring will not hold up.
Common Uses for TR-032 Hydraulic Rod T-Seals
• Hydraulic cylinders on industrial equipment
• Mobile hydraulic systems such as loaders, skid steers, telehandlers, and excavators
• Agricultural cylinders including lift arms, tillage equipment, sprayers, and tractors
• Construction and heavy-equipment cylinders
• Refuse trucks and compactors where side-load is common
• Material handling lifts, presses, and automated machinery
• Injection molding and plastic processing equipment
• Mining and drilling equipment
• Forest and logging machinery
• Utility service vehicles and maintenance equipment
Why buy from The O-Ring Store LLC
We stock seals in the USA so you can get what you need quickly and keep your equipment moving. Our ISO9001:2015 quality system ensures consistent, reliable sealing parts every time you order. We offer same-day shipping on in-stock items, full traceability when you need it, and a knowledgeable team ready to help guide you toward the best sealing solution for your application. You get the right product, faster, with customer care you simply do not get from the large distributors.
