Rail Joint Bar For Rail 136RE

Rail joint bars (also known as fish plates or splice bars) for 136RE rail are heavy-duty components designed to connect two rail sections while maintaining structural integrity under high axle loads. These bars are strictly manufactured to AREMA standards and are commonly used in mainline freight and mining operations.

Standard Specifications

Joint bars for 136RE rail typically come in two primary configurations based on the number of bolt holes:

Key Features

Drilling Patterns: Holes are often alternating or elliptical to accommodate oval-necked track bolts, allowing for thermal expansion and contraction.

Material Strength: Often produced from high-strength carbon steel (e.g., Chinese steel grade 55#) with a tensile strength ≥690 MPa to withstand heavy-haul stress.

Compatibility: 136RE joint bars are frequently interchangeable or designed similarly to 132RE and 141RE profiles because they share similar web and head heights.

Track Bolts: Typically use 1-1/8" x6-1/2" or 1"x6" heat-treated carbon steel bolts. 

Function

Maintains rail alignment longitudinally and vertically.

Provides mechanical continuity, reducing rail-end bending stresses.

Transmits shear and longitudinal forces between rail sections.

Facilitates easy replacement of worn or damaged rails.

Installation Notes

Bars are installed on both sides of the rail web.

Bolts are tightened in a predefined torque sequence to prevent misalignment.

Periodic inspection is required for loosened bolts, corrosion, or cracking.