PACKAGE INCLUDES:
4x Bottom Roller

FITMENT:
For KUBOTA U25S Excavator Undercarriage.
Will not fit models KX71, KX91-2/2S or U35-4.

SPECIFICATIONS:
Bottom Roller Weight: 19.84 LBS;
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;
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.

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.

DESCRIPITION:
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.
Sealed bearings stop dirt, mud, and grime from penetrating inner components.
Made of durable material which is totally corrosion and dust resistant, each item has been factory tested and meets or exceeds OEM specifications.

It was designed and manufactured to exact OEM specifications using a high-quality, high-strength steel.
It will provide long-lasting and dependable performance even if you operate in the most extreme conditions.