D85E-21 Bulldozer Lower Roller

D85E-21 bulldozer lower roller

A Komatsu bulldozer lower roller is an essential component of a bulldozer's undercarriage system. It serves as a support mechanism for the bulldozer tracks by providing a smooth track path and absorbing shock and vibration, ensuring a stable ride for the operator.

Komatsu bulldozer lower rollers are made from high-quality materials that are designed to withstand heavy loads and harsh working conditions. They are precision-engineered and tested to ensure maximum reliability and durability. Whether you are working in construction, mining, forestry, or any other heavy-duty application, the Komatsu bulldozer lower roller is built to withstand even the toughest environments.

Regular maintenance of your lower roller is essential to extend its lifespan and ensure optimal performance. It is important to inspect the roller periodically for signs of wear or damage and replace it when necessary. Routine lubrication of the roller bearings is also recommended to maintain smooth movement and prevent premature wear.

In summary, a Komatsu bulldozer lower roller is an essential component of a bulldozer's undercarriage system, providing stability, shock absorption, and a smooth track path. With proper maintenance, it can provide reliable and durable performance, making it an invaluable asset to any heavy-duty application.

D85E-21 bulldozer lower roller

Collars of Upper rllers are made by ductile iron. It shows exceptional resisitance to shock.

D85E-21 bulldozer lower roller

Each rollers is precision machined to house special high impact low wear bimetal bushings.

D75A-1, D80A-12, D80A-18, D80E-18, D80F-18, D80P-18, D83E-1, D85A-12, D85A-18, D85A-21, D85A-21B, D85E-18, D85E-21, D85EX-15, D85P-18, D85P-21, D85PX-15

technical requirement

1. Check all parts strictly before assembly and clean them

2. A small amount of oil shall be applied to the mating surface of the shaft sleeve and straight shaft before assembly

3. The floating oil seal ring shall be assembled in pairs, and its sealing surface shall be coated with lubricating oil. O-ring and floating oil seal ring

The contact surface shall not be coated with grease, and the assembly of floating seal rubber ring shall not be twisted

4. During assembly, pay attention to the oil groove direction of the shaft and the installation plane of the side cover

5. After assembly, ensure that the axial clearance is 0.4-0.7mm. Rotate the wheel body by hand, and feel the resistance moment, but there is no jamming,

6. After installation, fill in the filtered lubricating oil and check that there is no leakage. Then run in for 3-5 minutes to make it run smoothly

7. The painting color shall comply with jb2299-78 or the customer's requirements

Heattreatment

Welding

Assembly

Warehouse