2046499 Back-Up Ring Description
YNF16689 (Part No. 2046499) is a high-performance back-up ring designed to enhance the sealing capability of O-rings in high-pressure hydraulic environments. Made of wear-resistant PTFE material, this ring is placed in the groove adjacent to the O-ring to prevent it from deforming or extruding under pressure. It is widely applied in construction equipment like excavators, loaders, and industrial hydraulic systems. Essential for maintaining cylinder performance, this component is a must-have for repair shops, maintenance teams, and seal kit manufacturers. Backed by YNF Machinery’s precision standards and global supply chain.
Back-Up Ring 2046499 Technical Sheet
| Parameter |
Detail |
| Part Number |
2046499 |
| YNF Code |
YNF16689 |
| Part Category |
Back-Up Ring / Seal Support Ring |
| Material |
PTFE (Polytetrafluoroethylene) |
| Color |
White or blue (depends on batch) |
| Function |
Prevents O-ring extrusion under pressure |
| Application Area |
Hydraulic cylinders, pumps, valves |
| Compatible Equipment |
Caterpillar, Komatsu, Hitachi, etc. |
| Brand |
YNF |
| Origin |
China |
| MOQ |
10 pcs |
| Packaging |
Bulk or custom-packed |
| Shipping Options |
Express, Air, Sea |
| Payment Terms |
T/T, L/C, Western Union |
Back-Up Ring 2046499 Applications
| Application Area |
Description |
| Hydraulic Cylinder Repair |
Used with O-rings in rod and piston seals |
| Construction Machinery |
Ensures stable sealing under variable pressure cycles |
| OEM Cylinder Manufacturing |
Installed in new hydraulic assemblies |
| Aftermarket Seal Kit Supply |
Integrated into rebuild kits for excavators, loaders, etc. |
2046499 Back-Up Ring Detail Display
Related Knowledge:
-
Back-up rings are essential in high-pressure hydraulic systems to prevent seal failure.
-
PTFE rings are particularly resistant to chemicals, heat, and deformation.
Related Products:
-
O-Ring 07000-12145 (YNF16463)
-
Piston Seal 707-44-15180 (YNF16465)
-
Wear Ring 07156-01517 (YNF16466)
FAQs:
Q: Can this back-up ring be reused?
A: It’s generally recommended to replace during each service to ensure optimal performance.
Q: Is it available as part of a complete seal kit?
A: Yes, we can include it in custom or standard cylinder repair kits.
