Bottom Roller Replacement for John Deere 57D Excavator Undercarriage Mini Excavator Track Roller

Package Include: 1x Bottom Roller Fitment Guide: For Kubota KX121-3 Excavator 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.

• For Kubota KX121-3 Excavator
• Bottom Roller Weight：17.64 pounds; Package Dimensions：6.69"X6.69"X10.6"
• 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. It was designed and manufactured to exact OEM specifications using a high-quality, high-strength steel.
• If you have any questions, never mind contact our friendly,helpful,and knowledgeable customer service representatives,we will be glad to address any questions or concerns promptly.