Good quality Trailer Hub Wheel Studs - Steady quality Canter Fe449 Rear Wheel Bolt – JINQIANG Detail:
Product description
Hub bolts are high-strength bolts that connect vehicles to the wheels. The connection location is the hub unit bearing of the wheel! Generally, class 10.9 is used for mini-medium vehicles, class 12.9 is used for large-sized vehicles! The structure of the hub bolt is generally a knurled key file and a threaded file! And a hat head! Most of the T-shaped head wheel bolts are above 8.8 grade, which bears the large torsion connection between the car wheel and the axle! Most of the double-headed wheel bolts are above grade 4.8, which bear the lighter torsion connection between the outer wheel hub shell and the tire.
Manufacturing process of high strength bolts
1. Selection of high-strength bolt raw materials
The correct selection of fastener materials in fastener manufacturing is an important part, because the performance of fasteners is closely related to its material. Cold heading steel is a steel for fasteners with high interchangeability produced by cold heading forming process. Because it is formed by metal plastic processing at room temperature, the deformation amount of each part is large, and the deformation speed is also high. Therefore, the performance requirements of cold heading steel raw materials are very strict.
(1) If the carbon content is too high, the cold forming performance will be reduced, and if the carbon content is too low, it will not be able to meet the requirements of the mechanical properties of the parts.
(2) Manganese can improve the permeability of steel, but adding too much will strengthen the matrix structure and affect the cold forming performance.
(3) Silicon can strengthen ferrite to reduce cold forming properties and material elongation.
(4) Although boron element has the effect of significantly improving the permeability of steel, it will also lead to an increase in the brittleness of steel. Excessive boron content is very unfavorable for workpieces such as bolts, screws and studs that require good comprehensive mechanical properties.
(5) Other impurity elements, their existence will cause segregation along the grain boundary, resulting in the embrittlement of the grain boundary, and the damage to the mechanical properties of the steel should be reduced as much as possible.
Our Hub bolt quality standard
10.9 hub bolt
| hardness | 36-38HRC |
| tensile strength | ≥ 1140MPa |
| Ultimate Tensile Load | ≥ 346000N |
| Chemical Composition | C:0.37-0.44 Si:0.17-0.37 Mn:0.50-0.80 Cr:0.80-1.10 |
12.9 hub bolt
| hardness | 39-42HRC |
| tensile strength | ≥ 1320MPa |
| Ultimate Tensile Load | ≥406000N |
| Chemical Composition | C:0.32-0.40 Si:0.17-0.37 Mn:0.40-0.70 Cr:0.15-0.25 |
FAQ
Q1: How many people in your company?
More than 200 people.
Q2: What else products you can make without wheel bolt?
Almost all kinds of truck parts we can make for you. Brake pads, center bolt, U bolt, steel plate pin, Truck Parts Repair Kits, casting, bearing and so on.
Q3: Do you have an International Certificate of Qualification?
Our company has obtained the 16949 quality inspection certificate, passed international quality management system certification and always adhere to automotive standards of GB/T3098.1-2000.
Q4: Can products be made to order?
Welcome to send drawings or samples to order.
Q5: How much space does your factory occupy?
It’s 23310 square meters.
Q6: What is the contact information?
Wechat, whatsapp, E-mail, mobile phone, Alibaba, website.
Q7: What kind of materials are there?
40Cr 10.9,35CrMo 12.9.
Product detail pictures:
Related Product Guide:
We always continually offer you by far the most conscientious customer service, and the widest variety of designs and styles with finest materials. These attempts include the availability of customized designs with speed and dispatch for Good quality Trailer Hub Wheel Studs - Steady quality Canter Fe449 Rear Wheel Bolt – JINQIANG , The product will supply to all over the world, such as: Orlando, Portugal, Greece, We adopt advanced production equipment and technology, and perfect testing equipment and methods to ensure our product quality. With our high-level talents, scientific management, excellent teams, and attentive service, our merchandise are favored by domestic and foreign customers. With your support, we'll build a better tomorrow!
By Delia from Jamaica - 2017.03.07 13:42
As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
By Candance from Chile - 2017.01.11 17:15
