Title:
WASHER (KU-RG20121790)
Description:
The RG20121790 washer distributes load under a bolt or nut, while also protecting mating surfaces from damage during tightening. As it sits between the fastener and the component, it spreads clamping force evenly; therefore, it prevents surface deformation and reduces the risk of loosening under vibration.
Moreover, Kubota manufactures this washer from durable, wear-resistant steel, so it withstands pressure, friction, and repeated use. In addition, it helps maintain proper fastener tension, which allows assemblies to remain secure over time. As a result, it improves fastening reliability and extends the service life of connected components.
Model Fitment:
This washer is commonly associated with undercarriage and structural assemblies, particularly where RG-series components are used.
Verified Model Range
- KX027-4
- KX040-4
- U35-4
- U48-4
Typical Applications
- Track and undercarriage assemblies
- Roller and idler mounting points
- Structural fastening locations
In these applications, it helps distribute load and maintain secure fastening under heavy vibration and working loads.
Additional Hydraulic / Structural Applications
- Mounting points within hydraulic systems
- Frame and racket fastening assemblies
Since these systems experience constant stress, the washer ensures consistent clamping force and reduces wear.
Part Details:
- Type: Flat washer (OEM specification)
- Material: Hardened steel
- Function: Distributes load and protects surfaces
- Application: Used with bolts and nuts in assemblies
- Installation: Placed between fastener and component surface
- OEM Reference: RG201-21790
This washer:
- Prevents surface damage during tightening
- Improves load distribution
- Reduces loosening due to vibration
- Supports secure fastening
