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Package Include:
2x Track Roller （As Shown）
Application:
For Kubota KX121-3S KX121-3ST
Does Not Fit a KX121-2
Specifications：
Bottom Roller Weight：17.64 pounds
Package Dimensions：6.69"X6.69"X10.6"
Color:Black
Material: 50 MnB Steel
Surface Hardness: HRC52-58, Deepth:5mm-10mm
Finish:Smooth
Technique: Forging and Casting
Description：
1. Wheel body: material 50 Mn, hardening hardness HRC 25-28, CASE hardening hardness HRC 52-56, hardening thickness 5-8mm.
2. Side cover: QT 450-10, strength as follows: tensile strength ob (MPa): 2450 yield strength 00.2 (MPa): 2310 hardness: 160 ~ 210 hb.
3. Roller: 45 # carbon steel or 40 Cr. Quenching of HRC25-30 and surface quenching of HRC 52-58. Hardening depth of 2-3mm.
4. Lock pin 65 Mn or 45 carbon steel, hardness HRC 25-28.
5. Bolts, grade 12.9, HRC 45-52.
6. Seal: nitrile rubber. Operating temperature range-20℃ to 110℃.
Why choose us? What are the advantages of our product?
1.This bottom roller is a