Double Heel Guide Rails - No Groove

Double-heel guide rails with no groove are used to maintain stable linear motion and alignment in precision tooling where rail lubrication and assembly consistency are critical. The no-groove heel design helps simplify lubrication routing and reduces variability during installation, making it practical for recurring machine build or maintenance cycles.

Common scenarios include machine tool gib and guide rail assemblies, where predictable contact geometry supports smooth slide motion under load. In these setups, the specified rail thickness and width options (T: 15–50 mm, W: 15–38 mm) allow engineers to match stiffness requirements for the moving guide path.

They are also suitable for industrial linear motion systems that benefit from repeatable mounting pitch layouts. With configurable bolt hole counts (2–4) and pitch ranges for A/B/C/D, the rails can be matched to existing base plate or slider mounting patterns to reduce rework.

This guide rail is offered in HPM2T or SKS3, enabling engineers to balance wear resistance and toughness for guided motion. HPM2T is a tool steel grade selected for reliable sliding wear behavior; it is typically supplied as a hardened product depending on supplier condition, then used without aggressive post-processing when design tolerances and surface finish are critical.

SKS3 is commonly chosen for applications requiring stable performance with good wear resistance while maintaining workable toughness. Compared with many higher-alloy grades, SKS3 can offer a different toughness–wear trade-off that may be favorable when loads and shock levels vary in service.

• Material choice affects wear resistance vs. toughness in long stroke linear guidance.
• Heat treatment state is typically pre-hardened/hardened for tooling-grade consistency, with final hardness driven by the supplied condition and intended bearing/contact surface finish.

For exact hardness (HRC) and heat treatment recipe for your specific SKU, confirm with the lot documentation or request a datasheet.

Select the rail dimensions by first matching rail thickness (T) and rail width (W) to the stiffness and bearing area requirements of the guide assembly. Available ranges include T: 15–20, 15–30, 20–40, and 25–50 mm; W: 15, 18, 22, 26, 32, 38 mm.

Then choose the required rail length (L) to cover the full travel and mounting footprint: L: 40–100, 40–150, 50–200 mm. The heel height (1–18, 1–28, 1–38, 1–48 mm) and heel width (0.5–7 up to 0.5–18.5 mm depending on the size set) must match the counterpart contact geometry so the guide can seat without rocking.

• Verify mounting layout using the available no. of mounting holes (2–4).
• Match bolt pitch to the designed base plate: A, B, C, D ranges are provided per configuration (e.g., A: 6–94 mm; D: 36–94 mm and larger sets up to ~189.5 mm).
• Use the same pitch set across all rails in the assembly to maintain alignment; confirm fit and clearance based on your machining tolerances.