This Bottom Roller Track Roller is Compatible with:
Bottom Track Roller For Kubota U55 KX057 KX161-3 Excavator Undercarriage.

Package Include:
1x Bottom Roller

Fitment Guide:
For KX057-4, KX161-3, KX161-3S, KX161-3ST, U45S, U45ST, U55 and U55-4
It does not fit KX057-5 or KX161-2

Specifications：
Package Dimensions：5.51"X5.51"X8.26"
Color:Black
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℃.
Finish:Smooth
Technique: Forging and Casting

Description：
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.