PACKAGE INCLUDES:
1x Bottom Track Roller

SPECIFICATIONS:
Material: 50 MnB Steel
through hardened HRC 25-28, CASE hardened HRC52-56, hardened thickness 5-8mm.
Color:Black
Surface Hardness: HRC52-60, Deepth:5mm-10mm;
Side cover : QT450-10.
Finish:Smooth;
Technique: Forging and Casting;
Side cover : QT450-10.
Strength is as follows
Tensile strength σb (MPa): ≥450
Yield strength σ0.2 (MPa):≥310
Hardness:160 ~ 210 hb

Roller, 45# carbon steel or 40Cr, quenched HRC25-30, surface quenched HRC52-58, hardened to a depth of 2-3mm.
Seal: Nitrile rubber. Operating temperature range -20℃ to 110℃.
Locking pin, 65Mn or 45 carbon steel, hardened HRC25-28.
Bolt, grade 12.9, HRC45-52. 6.

Note: Please confirm the item if it matches your need before you purchase.

FITMENT:
Compatible with Kobelco Mini Excavators SK025, SK025-2;
Compatible with Takeuchi Construction & Industrials TB025, TB035, TB125, TB135, TB138FR, TB228, TB230, TB235, TB240;
Compatible with Takeuchi Mini Excavators TB025, TB035, TB108, TB125, TB135, TB138FR, TB228, TB230, TB235, TB235-2, TB240;

#REF! #REF!
DESCRIPITION:
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.