About Cylinder Seals
Rod wipers scrape dirt, dust, and moisture from the rod, preventing contamination inside your cylinder.
Rod seals maintain the pressure inside cylinders and prevent fluid from leaking out.
Wear rings guide the rod and piston to prevent uneven wear and optimize seal performance.
Head seals are a more reliable alternative to the standard O-ring/backup ring combination—they resist twisting and remain stable even in applications with fluctuating pressure.
Buffering seals protect hydraulic cylinders from pressure spikes and shock in high-pressure hydraulic applications.
Cushioning seals minimize wear and noise in air-powered cylinders by preventing the piston from slamming against the cylinder body.
Piston seals make a seal between their outside edge and the cylinder bore to prevent internal leaks.
Water- and Oil-Resistant Leather Gasket Material
In addition to water and oil, these pliable leather sheets resist salts, grease, and detergents. They are vegetable tanned. Cut with scissors. The 36”×84” sheet size is approximate.
For technical drawings and 3-D models, click on a part number.
High-Pressure Leather U-Cup Seals
Rated for pressure up to 10,000 psi, these leather U-cups handle over 80 times more pressure than our Buna-N U-cups. Leather is tough, pliable, and wear resistant, so it flexes to fit uneven surfaces and fill voids. U-cups can be used for rod and piston sealing. Pistons require two seals—install one facing in each direction.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Rod Sealing | For Piston Sealing | |||||||
|---|---|---|---|---|---|---|---|---|
| For Rod Dia. | For Groove Dia. | For Bore Dia. | For Groove Dia. | Max. Pressure, psi | Temp. Range, °F | Color | Each | |
Wax-Filled Leather | ||||||||
For 1/4" Groove Wd. | ||||||||
| 1/4" | 0.750" | 3/4" | 0.250" | 10,000 | 0° to 180° | Black | 0000000 | 000000 |
| 3/8" | 0.875" | 7/8" | 0.375" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
| 1/2" | 1.000" | 1" | 0.500" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
| 5/8" | 1.125" | 1 1/8" | 0.625" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
| 3/4" | 1.250" | 1 1/4" | 0.750" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
| 7/8" | 1.375" | 1 3/8" | 0.875" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
| 1" | 1.500" | 1 1/2" | 1.000" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
| 1 1/8" | 1.625" | 1 5/8" | 1.125" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
| 1 1/4" | 1.750" | 1 3/4" | 1.250" | 10,000 | 0° to 180° | Black | 0000000 | 00000 |
High-Pressure Leather Stackable V-Ring Packing Seals
These leather V-ring packing seals handle over twice the pressure as PTFE. Leather is tough, pliable, and wear resistant, so it flexes to fit uneven surfaces and fill voids. Stack as many V-rings as you need to fill grooves in valves, pumps, and cylinders—each additional ring adds to the sealing force.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
Max. Pressure, psi | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | V-Ring Wd. | Ht. | For Reciprocating Motion | For Oscillating Motion | Temp. Range, °F | pH Resistance | Color | Each | |
Wax-Filled Leather | ||||||||||
| 1/4" | 5/8" | 0.083" | 0.188" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 000000 |
| 5/16" | 11/16" | 0.083" | 0.188" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 3/8" | 3/4" | 0.083" | 0.188" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 3/8" | 7/8" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1/2" | 7/8" | 0.083" | 0.188" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1/2" | 1" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 9/16" | 1 1/16" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 5/8" | 1 1/8" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 3/4" | 1 1/4" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 7/8" | 1 3/8" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1" | 1 1/2" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1 1/8" | 1 5/8" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1 1/4" | 1 3/4" | 0.083" | 0.250" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1 3/8" | 2" | 0.140" | 0.313" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1 1/2" | 2 1/8" | 0.140" | 0.313" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
| 1 3/4" | 2 3/8" | 0.140" | 0.313" | 5,000 | 1,000 | 0° to 180° | 0-7 | Black | 0000000 | 00000 |
Flexible Leather Cords
Because these cow leather strips are mineral tanned, they are tougher yet more supple than vegetable-tanned leather. Use as seals and gaskets. They have one smooth side and three rough sides.
| Thick. | Wd. | Lg. | Max. Temperature, °F | Color | Leather Type | Pkg. Qty. | Pkg. | |
| 3/32" | 1/8" | 48" | 200° | Gray | Mineral Tanned | 5 | 0000000 | 000000 |