Package Include:
1x Bottom Roller

Part Number:
RD148-21700,RD118-21700

Fitment Guide:
For Kubota KX121-3S KX121-3ST Mini Excavator

Inadaptation:
Will not fit models KX121-2

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

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.