3500 Lb 5 Bolt 4.5&quot Circle Trailer Hub Assembly SKF CODE BAA0025

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Specification
item
value
Place of Origin
China
Province
Hangzhou
Brand Name
EP
Model Number
Customized Services
Process
Mainly Hot forging, Some parts with Cold forging, die forging, and Free forging will be OK.
Material
Carbon steel: CM490,A36,1045,1035 etc., Alloy steel: 40Cr, 20CrMnTi, 20CrNiMo, 42CrMo4 etc., Stainless steel, SS304,SS316 etc.
Weight
1kg - 120kg
Applicable Machining Process
CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling/ Tapping/ Broaching/Reaming etc.
Machining Tolerance
0.03mm-0.1mm
Applicable Finish Surface Treatment
Shot/sand blast, polishing, Surface passivation, Primer Painting, Powder coating, ED- Coating, Chromate Plating, zinc-plate, Dacromat coating, Finish Painting,
Testing equipment
Supersonic inspection machine, Supersonic flaw detecting machine, physics, and chemical analysis.
MOQ of mass production
1000-5000pcs
Testing equipment
Optical Spectrum Analyzer, tensile testing machine, impact testing machine, fluorescent magnetic particle detector, hardness tester, ultrasonic flaw detector..etc.
Packing
Wooden cases or according to customers' needs

wheel hub

wheel hub

 

Let's start with the biggest part of the assembly: the wheels. It is made of forged or cast metal. It is similar to a disc, except it has a protruding center with wheel spikes. The hub has a hole in the center for the bearing assembly. In some vehicles, the bearing assembly is built into the wheel hub. In other vehicles, the bearing assembly is a separate component.
The hub is an important component because it is the "pillar" of the entire assembly. It holds or connects other components in a component.

How do wheel hubs work?

The hub assembly holds the brake rotor, which typically slides on the lug studs and forms the attachment point for the wheel. Inside the hub is a bearing or the bearing race. The front hub creates a fixed attachment point for the wheel to roll and turn as you drive the vehicle. The rear hub is largely held in place while it swivels on the rest of the suspension.
Hubs rarely break or wear out, but the bearings inside are eventually replaced with age and wear. Seized fasteners often make the hub difficult to remove and replace.

How are wheels made?

Wheel hubs are usually made from steel or aluminum castings or forgings. Steel is the more common material used to make wheel hubs. After forging, the blank part must be machined to the final dimensions.

Why maintain hub assemblies and wheel bearings

First, there are a few things to know about this process. Before about 1997, most vehicles were equipped with inner and outer wheel bearings, both of which needed to be replaced. Front-wheel drive vehicles often have sealed wheel bearing assemblies which are more difficult to repair; some drivetrain components may need to be removed, and you will need to press new bearings into the hub, which means leaving this type of bearing to the professionals easier.
The wheel hub assembly is located between the brake drum/disc and the drive shaft and is mounted on the fixed bracket of the chassis on the axle side. On the drum/disc side, the wheel is bolted to the hub assembly. The wheel bearing itself is located inside the hub unit.
These low-maintenance components must take the vehicle's load, whether in motion or stationary. Their importance is accentuated as you drive over potholes and another rough terrain. And, even though they are low maintenance, these wheel bearings are certainly not maintenance-free.
Your goal is to minimize the friction the wheel bearings create. This can be achieved by using high-quality grease specially designed for high temperatures. However, be careful not to apply too much grease, as this can cause overheating due to friction that doesn't dissipate properly. Damage can occur with repeated overheating events.
And, even though proper grease application helps these parts last longer, they will eventually need to be replaced. Generally, you should inspect and maintain wheel bearings every 25,000 to 30,000 miles. A sealed wheel bearing can last an average of 85,000 to 100,000 miles, although some bearings can last as long as 150,000 miles.

Quality Control

The company regards quality as the life of cooperation and takes high standards and high quality as its purpose. We have passed the ISO9001 system, established a perfect inspection and quality assurance system, and implemented strict quality management. Our goal is to achieve zero defects and ensure that every product is satisfactory to users. The leading testing equipment is a coordinate measuring machine, spectrum analyzer, tensile testing machine, impact testing machine, fluorescent magnetic particle flaw detector, hardness tester, ultrasonic flaw detector, etc. Our company has many other products, such as qd weld on hubs, 120 tooth sprocket, conveyor chain, etc. If you have any needs, please feel free to contact us.

Why Choose Us?

1. Our company has been engaged in the forging business for more than 20 years and has accumulated rich forging technology and experience.
2. The company has many experienced forging engineers and skilled workers.
3. Our factory is equipped with various forging equipment and processing machinery, which can mass-produce forgings from 1kg to 100kg in a short period.
4. We have a professional industrial design team, which can design products according to customers' detailed requirements. In addition, we can make secondary design improvements to old parts.
5. The company has the design and production capacity of metal forging dies, which are key tools in the manufacturing process of forging products, and can better control product quality.
6. We have sophisticated machining equipment, which can meet the assembly requirements of customers' products. It can be assembled directly after purchase.
7. The company can design and produce forged products with complex structures, and the product surface is beautiful and defect-free.
8. The company implements a strict ISO quality control system to effectively control each product's quality.
9. The company has a complete order processing process to ensure the timely delivery of each order. The company has a professional business service team to provide customers with timely and comprehensive services.

Additional information

Edited

CX

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We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

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