The High Strength Shantui Bulldozer Undercarriage Track Roller (also referred to as bottom roller or lower roller) is a precision-engineered component designed specifically for Shantui heavy-duty bulldozer models, including the SD13, SD16, SD22, SD23, and SD32 series. As a critical element of the crawler undercarriage system, the track roller bears the full machine weight, distributes the load evenly across the track chain, and ensures stable, smooth travel across construction sites, mining operations, and forestry terrains.

Manufactured from high-strength 50Mn, 40MnB, and 42MnB alloy steel, this track roller delivers exceptional structural integrity and impact resistance. The roller surface undergoes advanced induction hardening and heat treatment, achieving a surface hardness ranging from HRC 48-54 to HRC 52-60 with a hardening depth of 8-12mm. This deep, uniform hardened layer provides wear resistance that matches the service life of the track links themselves.

Available in both single-flange and double-flange configurations, the track roller is engineered to support the bulldozer’s weight while minimizing friction and enhancing mobility across various terrains. The roller features a robust lubrication system with large lubricant reservoirs to reduce heat buildup, and high-quality bronze sleeve bearings that absorb foreign particles before they can damage the shaft and seals.

Designed for quick and easy bolt-on installation with OEM-spec mounting dimensions, this track roller is the dependable choice for operators seeking consistent, top-tier performance from their Shantui bulldozers