A semi trailer is one of the main transportation equipment for cargo transportation in the world. The semi-trailer axle is the core component of a semi-trailer. Semi trailers in different countries and regions are equipped with different styles of axles.
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The semi-trailer axle is mainly composed of four major parts:
a. The axle body assembly (including an axle tube, brake base plates, air chamber supports, camshaft supports, etc.).
b. The camshaft assembly (including camshafts, slack adjusters, camshaft repair kits, etc.).
c. The brake assembly (including brake shoes, brake linings, tension springs, etc.).
d. The wheel end assembly (including brake/wheel hubs, brake drums, oil seals, bearings, axle nuts, hub caps, etc.).
Figure 1: axle structure of semi-trailer
Semi trailer axles mainly include three series.
1. American Series Axle
This kind of axle is one of the most widely used semi-trailer axle series in the world. The main markets for American Series axles are the Americas and China. They are also used in other regions such as Asia, Africa, and some European countries and regions.
This series of axle includes light duty axles (load capacity includes 8 tons, 9 tons, 10 tons, 11.5 tons and 12 tons), medium duty axles (load capacity includes 13 tons, 14 tons and 15 tons), and heavy duty axles (load capacity includes 16 tons, 18 tons and 20 tons).
There are two kinds of axle beams: square axle beams and round axle beams. Light-duty axles with a rated load of 8 to 12 tons generally use square axle beams of 120x120mm or 127x127mm, or round axle beams with an outer diameter of Φ127mm
Medium duty and heavy duty axles with a rated load of 13 tons ~ 20 tons generally use square axle beams of 150×150mm, or round axle beams with an outer diameter Φ146mm.
According to the different using requirements and the special design of some parts, American series axles can be divided into:
1) Inboard Drum Axle Series:
The flange’s outer surface of this axle’s brake drum is located on the inner surface of the hub flange. For inboard drum axles, when maintaining and replacing parts of the brake system, it is necessary to unscrew the hub cover and remove the bearing locknut, so that the tire, the wheel hub, the brake drum, the bearings, etc. can be removed together from the beam for maintenance and replacement.
Figure 2: Inboard drum type American semi-trailer axle
2) Outboard Drum Axle Series
The flange’s inner surface of this axle’s brake drum is located on the outer surface of the hub flange. For outboard drum axles, when maintaining and replacing brake system parts, it is only necessary to unscrew all wheel nuts and remove tires and brake drums.
Figure 3: Outboard drum type American semi-trailer axle
3) Spoke Wheel Hub Series Axle
This axle uses special five-spoke hubs, six-spoke hubs, eight-spoke hubs, or ten-spoke hubs to replace the ordinary wheel hubs. It is used with demountable wheel rims and spacers.
Figure 4: Spoke type semi trailer axle
4) Low Bed Series Axle
The outer diameter of this series axle’s brake shoe is Φ311x190mm, which is much smaller than the diameter of common axle brakes. This axle can be matched with smaller wheel rims and tires, effectively reducing the body height of semi-trailers, and is widely used in car transportation semi-trailers and low bed semi-trailers.
Figure 5: Low bed type semi trailer axle
5) Full Drop Series Axle
The axle's beam is full dropped, which can reduce the trailer body height.
Figure 6: Full drop type semi trailer axle
6) Drop Centre Series Axle
The centre concave structure of this axle’s beam can effectively avoid the interference between the axle beam and the transmission axle.
Figure 7: Drop Centre type semi trailer axle
7) Disc Brake Series Axle
Compare with the drum series axles, the disc brake series axles have a simpler structure, and the brake friction surfaces are directly exposed to the air, and the heat dissipation is better, which effectively avoid the phenomenon of thermal degradation. Both sides of the brake disc bear compressive stress and have good crack resistance under continuous braking. The left and right disc braking forces are more balanced, and the braking system responds faster. Therefore, the safety of the vehicle is improved.
Figure 8: Disc Brake Series semi trailer axle
8) Idler Axle
An idler axle does not have braking unit and only plays the role of supporting and bearing. This axle is usually used in low-speed and light load environment.
Figure 9: Idler Axle
2. Europe Series Axle
The main markets for Europe series axles are European countries. They are also used in other countries such as the Middle-east countries, African countries and some Asian countries.
This series of axles have the following characteristics: the axle beam adopts a reinforced square section steel beam, and the axle beam is designed with an outward inclination angle of 1 °, which can effectively ensure the loading of the axle. All parts of the brake shoe have no left and right distinctions and can be interchanged freely. The brake shoe and the support pin use a bayonet link, which is convenient for installation, self-compensation, quick return, and good braking effect. On the axle spindle two bearings, one large and one small, are installed, which is convenient for installation and maintenance.
This series of axles can be divided into the following three categories:
1) Drum Series Axle
Its rated load includes 10 tons, 12 tons, 14 tons, 16 tons, 18 tons and 20 tons.
Figure 10: Drum Series German type semi trailer axle
2) Spoke Series Axle
Its rated load includes 12 tons, 14 tons and 16 tons.
Figure 11: Spoke Series German type semi trailer axle
3) Disc Brake Series Axle
Figure 12: Disc Brake Series German type semi trailer axle
3. Other Axle Series
Semi-traile axles in different regions in the world have their own characteristics. According to their market characteristics, there are many other series axles. A few examples are as follows:
1) South African Axle
The rated load capacity of this type axle is generally 13 tons, and the main markets are South Africa and its surrounding countries.
Figure 13: South African type semi trailer axle
2) Brazilian Axle
The rated load capacity of this type axle is generally 13 tons, and its hubs and brake drums are specially customized. The main markets are South American countries.
Figure 14: Brazilian type semi trailer axle
3) Thailand Axle
The rated load capacity of this axle is 13 tons, 14 tons and 16 tons. The main markets are Thailand and Southeast Asian countries.
Figure 15: Thailand type semi trailer axle
4) York Axle
The rated load of this axle is 13 tons, 14 tons and 16 tons. The main markets are Southeast Asian countries.
Figure 16: York type semi trailer axle
If you are interested in more details, please visit wwww.wondee.com.
18Ton 1850MM German Type Square Beam Rear Semi Trailer Axles for Sale
Product Parameters
Axle Type
Max
Capacity
(T)
L2
Track
(mm)
Brake ( mm )
Bearing
Spring Seat
Installation
Axle
L4Centre Distanceof Brake Chamber
( mm)
JS12FA1347D
12
1840
φ420x 180
33118
33213
≥980
150
423
JS13FA1348D
13
1840
φ 420x 200
33118
33213
≥900
150
360
JS14FA1348D
For more Agricultural axleinformation, please contact us. We will provide professional answers.
14
1840
φ 420x 200
32219
33215
≥900
150
356
JS16FA1348D
16
1850
φ 420x 200
322222
32314
≥900
150
360
JS18FA1348D
18
1850
Φ420x 200
322222
32314
≥900
150
380
Wheel Fixing
Total Length ( mm )
Recommended
Wheel
Weigth(Kg)
Stud
PCD(mm)
H(mm)
10-M22x 1.5ISO
335
280.8
~ 2144
7.5v-20
360
10-M22x 1.5ISO
335
280.8
~ 2144
7.5v-20
382
10-M22x 1.5ISO
335
280.8
~ 2198
8.0v-20
406
10-M22x 1.5ISO
335
280.8
~ 2265
8.5v-20
440
10-M22x 1.5ISO
335
280.8
~ 2265
8.5v-20
443
Detailed Photos
Application
Company Profile
Shandong Jinsheng Axle Manufacturing Co., Ltd., founded in 2000, is a professional manufacturer of trailer axle assemblies, semi-trailer suspension systems and correlative fittings in China. We are located in Quanpu Industry Zone which is the largest production base of trailers in China, in Liangshan, the famous scenic spot. We are one of specialized enterprises in the scientific research, design, production and sale, with more than 300 skilled employees and professional designers for different areas. We adopt the domestic and international technical standards in production, accurately grasp the information of the market demand and make quick and optimal designs. In this way, our axle, suspension and other fittings have the world-class technical quality through reasonable and advanced manufacture technologies. Our advanced processing technology, first-class production line and precision CNC machining equipment from home and abroad ensure the good quality of our semi-trailer axle assemblies, suspension systems and other correlative fittings. At the same time, our annual capacity for the export of American and German semi-trailer axle assemblies has achieved 60, 000 pieces and of suspension assemblies has achieved 50, 000 sets. We obtained the ISO9001: 2000 International Quality Management System Certification in 2003 and TS16949 Certification in 2007. "First-class product quality, the meticulous and thoughtful service, and win-win cooperation" is the philosophy that we always cherish. We not only meet the domestic market demand, but also export our products to Southeast Asia, the Middle East, Latin America and other countries, enjoying a good reputation. We always regard quality as life, and client as God. We will create a brilliant tomorrow with your sincere cooperation and support.
Certifications
Packaging & Shipping
FAQ
1. What's your advantage?
-- We are manufacturer, we own professinal technology & quality control team; excellent team for foreign trade plus a rich expertise in trading.
2.Where your export to?
-- Our export to America, Netherlands, Germany, Italy, Poland, Hungary, Russia, and other European, Asia and Africa countries.
3. Can you send me samples for testing?
-- Certainly! We'd like to provide the samples free of charge, but for the freight, pls kindly bear it.
4.Can you supply OEM ?
-- Sure, we always supply customized seveices according to customers' drawing or samples.
5. How long do you finish a new product?
-- Usually 20~35days once all information confirmed.
Remark:
Our payment terms
-- 30% by T/T in advance, 70% by T/T before shipment
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