Forged Excavator Track Bottom Roller RD118-21700 & RD148-21700 - Compatible with Kubota Mini Excavator Models KX121-3, KX121-3S, KX121-3ST, KX040-4 - Heavy Duty Replacement Part for Construction & Landscaping Projects

A track bottom roller is a very crucial part of the excavator’s undercarriage system that supports and ensures appropriate movement. You will find this product with other names dubbed “track roller or track idler”. It gives balance to the machine’s weight and secures track alignment. If you’re looking for an Excavator Track Bottom Roller for Kubota models, then check out our latest addition and its specifications.High-Quality Material: This bottom roller for mini excavators is engineered with premium quality 50Mn Carbon steel. It will endure rough and tough conditions on different terrains. The material ensures longevity and consistent performance, making it a perfect replacement for your undercarriage system. It’s manufactured to exact OEM specifications and standards.Robust Strength and Durability: Our excavator track bottom rollers are forged and designed to handle heavy-duty applications. It restrains the wear and tear of the bottom roller while ensuring the optimal load-bearing capacity. Meanwhile, the lifespan expectation of our machinery ranges from 1,000 hours to 3,000 operational hours.Seamless Operation: Excavator bottom rollers will enhance the vehicle's performance while reducing vibration and giving comfort to the operator. For a long life of the equipment, do regular checks for wear and tear.Reliable Seals: We have added nitrile butadiene rubber (NBR) seals to prevent contaminants, like dirt, debris, and moisture from entering. Also, the seal acts as a barrier to protect the bearings from damage. Meanwhile, lubrication channels ensure excellent oil retention, smooth rotation, and performance of the roller. Precise Fit: Our forged excavator track bottom rollers are meticulously designed to replace and fit specific vehicle models and OEM part numbers of Kubota mini excavators. It’s essential to ensure the size of the bottom roller or part number for accurate fit. Check out the compatibility details below.Compatibility:Replaces OEM Part No.: RD118-21700, RD148-21700Compatible with Kubota mini excavator models: KX 121-3, KX 121-3S, KX 121-3ST, Kubota KX 040-4