Bottom Roller Replacement for Kubota KX71-3 KX71-3S Undercarriage Mini Excavator Track Roller

Item specifics: For Kubota Model: KX71-3 & KX71-3S 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℃.

• For Kubota KX71-3 & KX71-3S; Will NOT fit models KX71, KX91-2/2S or U35-4!!
• Bottom Roller Weight：26.46 pounds; Package Dimensions：5.51"X5.51"X8.26"
• Package Include: 1x Bottom Roller
• Material: 50 MnB Steel; Surface Hardness: HRC52-58, Deepth:5mm-8mm ; Locking pin, 65Mn or 45 carbon steel, hardened HRC25-28. Bolt, grade 12.9, HRC45-52. 6. Seal: Nitrile rubber. Operating temperature range -20℃ to 110℃.
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