Carry lateral loads
Provide bearing support at the piston or rod guide location, with bearing width selected for the application load.
Fabric reinforced polyester resin bearing strip for piston and rod guidance. Support lateral loads, maintain alignment and help protect moving metal surfaces inside the cylinder.

Auter WST WEAR STRIP is a fabric reinforced polyester resin bearing strip for hydraulic cylinder guidance. Installed in the piston or rod guide groove, it supports lateral loads, helps maintain alignment and separates moving metal surfaces. By limiting direct contact between the piston and bore or the rod and gland, WST helps reduce scoring and wear while supporting the operation of the sealing system. The reinforced resin construction combines a wear-resistant bearing surface with structural support for demanding cylinder service. Strip thickness, bearing width and installed clearance are selected together to suit the load and available groove space.
Provide bearing support at the piston or rod guide location, with bearing width selected for the application load.
Help prevent direct contact between piston and bore or rod and gland, reducing the risk of scoring and wear.
Work with the cylinder bearing arrangement to guide reciprocating movement and support the sealing system.
WST is made from fabric reinforced polyester resin. Review the material against the fluid, temperature and bearing load of the application.
Browse regular strip cross-sections below. Dimensions are shown as width × thickness in mm. Include your required cut length and quantity when requesting a quote.
| Thickness (mm) | Available sizes (mm) |
|---|---|
| 2 |
|
| 2.5 |
|
| 3 |
|
| 3.17 |
|
| 4 |
|
| 5 |
|
Additional supplied size: 25.4 × 31.7 — dimensions to be confirmed when quoting.
Send a section drawing when possible. Strip thickness, bearing width, cut length and installed clearance need to match the cylinder hardware.
| Input | What to provide | Why it matters |
|---|---|---|
| Guide location | Piston or rod guidance; bore or rod diameter | Identifies the mating surface and bearing arrangement. |
| Strip cross-section | Required thickness and bearing width | Defines the strip section and available bearing area. |
| Groove geometry | Groove diameter, width and tolerances | Allows the installed fit and radial clearance to be reviewed. |
| Length and end gap | Cut length or finished bearing diameter; specified end gap | Allows the installed strip circumference and end clearance to be checked. |
| Quantity and supply | Required quantity, supply format and delivery needs | Clarifies the scope of the quotation. |
The bearing arrangement and cylinder geometry determine how lateral loads reach the guide strip. Review these inputs before confirming the strip dimensions.
Identify the guide location, hardware condition and actual duty so the review goes beyond the equipment name.
Auter WST WEAR STRIP is made from fabric reinforced polyester resin. The exact fluid, operating temperature and bearing duty should be reviewed when selecting it.
WST is used for hydraulic cylinder piston or rod guidance where the groove, strip dimensions, bearing arrangement and operating conditions are suitable. Send a drawing showing the intended location.
WST is a bearing and guide element. It supports lateral loads and helps separate moving metal surfaces; pressure sealing requires the appropriate piston or rod seals.
Provide piston or rod diameter, groove diameter and width, strip thickness, bearing width, and cut length or finished bearing diameter. Include the required end gap and drawing tolerances.
Send the existing part reference, dimensions or drawing and the operating conditions for review. A reference alone does not confirm interchangeability or application suitability.
Ask for confirmation against the proposed strip and actual application. Side load, bearing area, speed, temperature, fluid and hardware clearances must be assessed together; this page does not assign a universal operating rating.
Tell us whether the strip guides the piston or rod, then include dimensions, side load, fluid, temperature and quantity.
Available dimensions, supply format and application suitability are confirmed during quotation.