D8R /D8N Dozer Undercarriage Parts Bottom Roller for Caterpillar 246-0779
Product Description
The track rollers produced by our company are suitable for small excavators and heavy excavators and bulldozers from 0.2-120 tons. There are single flange and double flange models, and they are suitable for special road milling machines, pavers, forestry and agricultural applications.Version Roller.
Double yard seal design, can make the track rollers have longer life, better performance, durable and long-lasting.
The roller is a part that requires high wear resistance, so we not only need to carry out quenching and tempering treatment to make its internal structure uniform and fine. The hardness reaches HRC52. And if the wear resistance is not high, pass-through quenching treatment will also be carried out to improve the wear resistance of the rollers.
Top Roller :forging material(50MN) Cover material （QT450）Shaft （45#）
Degree of depth ：3mm（Shaft1.5-2mm）Hardness：HRC55-60
Roller body: Forging--Turning operation--Quenching--Fine Turing operation --pressure bushing--- welding slag shovel （clean up the body surface）
Shaft forging turning operation drill tapping tapping temper quenching mill right
Handed screw
End cover ：forging/casting/steel rod-rough and fine turning operation drill tapping
All parts ready to: assembly-Pressure Test Filling Oil Spray Paint Checking Storage
| Material | 50Mn |
| Finish | Smooth |
| Technique | Casting/Forging |
| Surface Hardness | HRC55-60 , Depth:4mm-10mm |
| Colors | Black or Yellow |
| Warranty Time | 1440 Working Hours |
| Certification | IS09001-9001 |
| MOQ | 2 Pieces |
| FOB Price | FOB Xiamen US$ 25-100/Piece |
| Delivery Time | Within 30 days after contract established |
| Payment Term | T/T,L/C,WESTERN UNION |
| OEM/ODM | Acceptable |
Application
Packing and shipping
