YB201 Excavator Track Roller

YB201 excavator track roller

excavator Track roller for yanmar excavator:

The excavator track roller is used to support the weight of the tractor and roll on the track (rail chain) or track shoe. It is also used to limit the track and prevent lateral slippage. When the tractor steers, the track rollers force the track to slip on the ground.

Excavator track  rollers are often in mud, water and dust, and bear strong impact. Therefore, they are required to be sealed reliably and wear-resistant.

Types:

The type of excavator bottom rollers used in combination track is different from that used in integral or rubber track: the supporting wheels of combination track roll on the guide rail while the supporting wheels of integral or rubber track roll on the track board.

There are two types of down roller for combined track, as shown in the following figure.One is single flange, the other is double flange. The former is easy to manufacture, so it is more widely used, while the latter is less used. The purpose of flanges is to prevent the relative lateral movement of the track against it, so as to prevent derailment when turning. Usually the height of flange H = 10-20 mm. In order to reduce the friction between the flange side and the guide rail side, the flange side is often made into an inclined plane with a slope angle of 20 ~30 degree.

Integral or rubber track, because the inner surface of the track board is cast with raised Chlamys to prevent the lateral movement of the track to the supporting wheel, so its supporting wheel flange is straight without flange. But each supporting wheel must have double-row rims, as shown in the figure below.

The number of supporting wheels can make the grounding pressure of the track more uniform, so that walking on the wet and soft soil can reduce the subsidence, but on the other hand, because the length of the track is certain, the number of supporting wheels is more, the diameter of each must be small, which increases the rolling resistance, generally speaking as a combine harvester. The number of supporting wheels is usually 3 to 4, and a few of them are 6.

The diameter of the supporting wheel D and the pitch P of the track shall be roughly maintained in the following proportion.

Combination track D/P=1-1.5

For integral or rubber trackD/P=1.5-3

Sliding bearings (such as iron-based powder metallurgy oil bearing) are commonly used for supporting wheels, but rolling bearings are also useful.No matter which bearing is used, it is necessary to prevent mud from entering. The flange of the supporting wheel should be wear-resistant. It is generally made of 50mn steel. The hardness of the flange surface after quenching is no less than HRC53.

Models Available For Yanmar Excavators:

VIO15,VIO17,VIO18,VIO20,VIO30-1,VIO30-2,VIO35,VIO40-1,VIO40-2,VIO50-2,VIO50-6,VIO70,VIO75,VIO55-2,VIO55-6,B17,B27,B37,B50 ,YB151,YB201,YM301,YM501ETC..

FAQ

1. What Is Your Terms Of Packing?
Generally, we pack our goods in fumigated seaworthy wooden pallets. We also use polywood pallets or wooden case.
2. What Is Your Terms Of Payment?
T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
3. What Is Your Terms Of Delivery?
EXW, FOB, CFR, CIF, DDU.
4. How About Your Delivery Time?
Generally, it will take 30-45 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
5. Can You Produce According To The Samples?
Yes, we can produce by your samples or technical drawings.
6. What Is Your Sample Policy?
We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
7. Do You Test All Your Goods Before Delivery?
Yes, we have 100% test before delivery
8. How Do You Make Our Business Long-Term And Good Relationship?
1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Hot Tags: yb201 excavator track roller, China, best, manufacturers, suppliers, factory, Track Roller D4D For Bulldozer, Mini Track Roller VIO55 6, Track Roller Yanmar, Front Idler PC40 7, Track Roller IHI40, Idler For Hitachi Ex60 2 3