Enignelooc Bottom Roller Replacement Fit for Caterpillar CAT 302.4 D Bottom Roller Excavator Track Roller

Key features

• ApplicabilityFit For CATERPILLAR CAT 302.4 DBottom Roller Excavator
• SizeTensile strength σb (MPa):≥450, Yield strength σ0.2 (MPa):≥310, Hardness:160 ~ 210 hb
• FunctionalThis 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.
• DesignSealed 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

Item specifics: Compatible With: CATERPILLAR Model: CAT 302.4D Part Type: Bottom Roller Compatible Equipment Type: Excavator Description: 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 follows Tensile strength σb (MPa): ≥450 Yield strength σ0.2 (MPa):≥310 Hardness:160 ~ 210 hb 3. 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 Includes: 1x Track Ro

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