Bottom Roller Replacement Fit for Kubota U45S & U45ST Excavator Track Roller

Item specifics:Compatible with: KubotaModel: U45S & U45STPart Type: Bottom RollerCompatible Equipment Type: ExcavatorDescription:1. Shell Material 50Mn, through hardened HRC 25-28, CASE hardened HRC52-56, hardened thickness 5-8mm.2. Side cover : QT450-10.Strength is as followsTensile strength σb (MPa): ≥450Yield strength σ0.2 (MPa):≥310Hardness:160 ~ 210 hb3. Roller, 45# carbon steel or 40Cr, quenched HRC25-30, surface quenched HRC52-58, hardened to a depth of 2-3mm.4. Locking pin, 65Mn or 45 carbon steel, hardened HRC25-28.5. Bolt, grade 12.9, HRC45-52. 6.6. Seal: Nitrile rubber. Operating temperature range -20℃ to 110℃.Features:1.This bottom roller is a durable undercarriage replacement part for your excavator. 2.Our rollers utilize special high strength-hardened steel and quality seal groups that provide excellent lubricating oil retention. 3.Sealed bearings stop dirt, mud, and grime from penetrating inner components.4.It was designed and manufactured to exact OEM specifications using a high-quality, high-strength steel. 5.It will provide long-lasting and dependable performance even if you operate in the most extreme conditions.Package Include:1x Bottom Roller

• 【Applicability】Fit For Kubota U45S & U45ST Excavator
• 【Size】Tensile strength σb (MPa): ≥450,Yield strength σ0.2 (MPa):≥310,Hardness:160 ~ 210 hb
• 【Functional】This bottom roller is a durable undercarriage replacement part for your excavator. Our rollers utilize special high strength-hardened steel and quality seal groups that provide excellent lubricating oil retention.
• 【Design】Sealed bearings stop dirt, mud, and grime from penetrating inner components. It was designed and manufactured to exact OEM specifications using a high-quality, high-strength steel.
• 【Package Include】:1x Track Roller