Best-Quality dozer carrier roller

Description:

Carrier roller is suitable for ranging 0.2-120 ton mini excavators and heavy excavators and bulldozers. The design of double code seal and life long lubrication make the track roller a healthy life and a wonderful performance. Manufacture of hot forging processing: roller shell access to excellent flow distribution within the material structure of fiber. Differential quenching or through quench hot heat treatment, the rollers have crack resistance effect and have a longer life span.

Production Porcess:

TOP ROLLER: Forging Material (50MN) Cover Material(QT450) Shaft( 45#) Degree of depth: 3mm (Shaft: 1.5-2mm) Hardness: HRC53-56 Roller Body：Forging—Turning operation—Quenching—Fine Turning operation—Pressure Bushing—Welding—Slag Shovel（clean up the body surface） Shaft：Forging—Turning operation—Drill—Tapping—Temper—Quenching—Mill—right-handed screw End Cover：Forging/Casting/Steel Rod—Rough and Fine Turning operation—Drill—Tapping All Parts Ready To：Assembly—Pressure Test—Filling Oil—Spray Paint—Checking—Storage

Quality Value:

Roller shell material：50Mn Surface Hardness：HRC53-56 Quench depth：>7mm Roller shaft material：45# Surface Hardness：HRC53-56 Quench depth：>2mm End Cover material：QT450