Product Description
Who we are?
HangZhou XIHU (WEST LAKE) DIS. CARDANSHAFT CO;LTD has 15 years history.When the general manager Mr.Rony Du graduated from the university,he always concentrated his attention on the research and development,production and sales of the cardan shaft.Mr.Rony Du and his team started from scratch,from 1 lathe and a very small order,step by step to grow up.He often said to his team”We will only do 1 thing well——to make the perfect cardan shaft”.
General manager Mr.Rony Du
HangZhou XIHU (WEST LAKE) DIS. CARDANSHAFT CO.,LTD was founded in 2005.The registered capital is 8 million ,covers an area of 15 acres, has 30 existing staff. The company specializing in the production of SWC, SWP cross universal coupling and drum tooth coupling.The company with factory is located in the beautiful coast of Tai Lake –Hudai (HangZhou Economic Development Zone Hudai Industrial Park).
In order to become China’s leading cardan shaft one-stop solution expert supplier .XIHU (WEST LAKE) DIS. CARDANSHAFT independent research and development of SWC light, medium, short, heavy Designs cardan shaft have reached the leading domestic level.Products not only supporting domestic large and medium-sized customers, but also exported to the United States, India, Vietnam, Laos, Ukraine, Russia, Germany, Britain and other countries and areas.In the past 15 years, the company has accumulated a wealth of experience, learn from foreign advanced technology, and to absorb and use the universal axis has been improved several times, so that the structure is maturing, significantly improved performance.
XIHU (WEST LAKE) DIS. Office Building
XIHU (WEST LAKE) DIS. belief: “Continuous innovation, optimize the structure, perseverance” to create a high quality of outstanding cardan shaft manufacturer.We always adhere to the ISO9001 quality control system, from the details to start, standardize the production process, and to achieve processing equipment “specialization, numerical control” rapid increase in product quality.This Not only won the majority of customers reputation, but also access to peer recognition. We continue to strive to pursue: “for customers to create the greatest value, for the staff to build the best platform”, will be CZPT to achieve customer and business mutually beneficial CZPT situation.
Welcome to XIHU (WEST LAKE) DIS. CARDANSHAFT
Why choose us?
First,select raw material carefully
The cross is the core component of cardan shaft,so the selection of material is particularly critical.Raw materials of the cross for light Duty Size and Medium Duty Size,we choose the 20CrMnTi special gear steel bar from SHAGANG GROUP.Being forged in 2500 ton friction press to ensure internal metallurgical structure,inspecting the geometric dimensions of each part to meet the drawing requirements,then transfer to machining,the processes of milling, turning, quenching and grinding.
The inspector will screen blank yoke head.The porosity, cracks, slag, etc. do not meet the requirements of the casting foundry are all eliminated,then doing physical and chemical analysis, to see whether the ingredients meet the requirements, unqualified re-elimination.And then transferred to the quenching and tempering heat treatment, once again check the hardness to see if meet the requirements, qualified to be transferred to the machining process. We control from the source of the material to ensure the supply of raw materials qualified rate of 99%.
Second,advanced production equipment
XIHU (WEST LAKE) DIS. Company introduced four-axis linkage machining center made in ZheJiang , milling the keyway and flange bolt hole of the flange yoke, The once machine-shaping ensures that the symmetry of the keyway and the position of the bolt hole are less than 0.02mm,which greatly improves the installation accuracy of the flange,the 4 axis milling and drilling center holes of the cross are integrated,to ensure that the 4 shaft symmetry and verticality are less than 0.02mm,the process of the journal cross assembly service life can be increased by 30%, and the speed at 1000 rpm above the cardan shaft running smoothly and super life is crucial to the operation.
We use CNC machine to lathe flange yoke and welded yoke,CNC machine can not only ensure the accuracy of the flange connection with the mouth, but also improve the flange surface finish.
5 meters automatic welding machine welding spline sleeve and tube,welded yoke and tube.With the welding CZPT swing mechanism, automatic lifting mechanism, adjustment mechanism and welding CZPT cooling system, welding machine can realize multi ring continuous welding, each coil current and voltage can be preset, arc starting and stopping control PLC procedures, reliable welding quality, the weld bead is smooth and beautiful, to control the welding process with fixed procedures, greatly reducing the uncertainty of human during welding, greatly improve the welding effect.
High speed cardan shaft needs to do dynamic balance test before leaving the factory.Unbalanced cardan shaft will produce excessive centrifugal force at high speed and reduce the service life of the bearing;the dynamic balance test can eliminate the uneven distribution of the casting weight and the mass distribution of the whole assembly;Through the experiment to achieve the design of the required balance quality, improve the universal shaft service life.In 2008 the company introduced 2 high-precision dynamic balance test bench, the maximum speed can reach 4000 rev / min, the balance of G0.8 accuracy, balance weight 2kg–1000kg.
In order to make the paint standardization, in 2009 the company bought 10 meters of clean paint room , the surface treatment of cardan shaft is more standardized, paint fastness is more rugged, staff’s working conditions improved, exhaust of harmless treatment.
Third,Professional transport packaging
The packing of the export cardan shaft is all in the same way as the plywood wooden box, and then it is firmly secured with the iron sheet, so as to avoid the damage caused by the complicated situation in the long-distance transportation. Meet the standard requirements of plywood boxes into Europe and other countries, no matter where can successfully reach all the country’s ports.
SWC-I Series-Light-Duty Designs Cardan shaft
Designs
Data and Size of SWC-I Series Universal Joint Couplings
| Type | Desian Data Item |
SWC-I 58 |
SWC-I 65 |
SWC-I 75 |
SWC-I 90 |
SWC-I 100 |
SWC-I 120 |
SWC-I 150 |
SWC-I 180 |
SWC-I 200 |
SWC-I 225 |
| A | L | 255 | 285 | 335 | 385 | 445 | 500 | 590 | 640 | 775 | 860 |
| Lv | 35 | 40 | 40 | 45 | 55 | 80 | 80 | 80 | 100 | 120 | |
| m(kg) | 2.2 | 3.0 | 5.0 | 6.6 | 9.5 | 17 | 32 | 40 | 76 | 128 | |
| B | L | 150 | 175 | 200 | 240 | 260 | 295 | 370 | 430 | 530 | 600 |
| m(kg) | 1.7 | 2.4 | 3.8 | 5.7 | 7.7 | 13.1 | 23 | 28 | 55 | 98 | |
| C | L | 128 | 156 | 180 | 208 | 220 | 252 | 340 | 348 | 440 | 480 |
| m(kg) | 1.3 | 1.95 | 3.1 | 5.0 | 7.0 | 12.3 | 22 | 30 | 56 | 96 | |
| Tn(N·m) | 150 | 200 | 400 | 750 | 1250 | 2500 | 4500 | 8400 | 16000 | 22000 | |
| Tf(N·m) | 75 | 100 | 200 | 375 | 630 | 1250 | 2250 | 4200 | 8000 | 11000 | |
| β(°) | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 25 | 25 | 25 | |
| D | 52 | 63 | 72 | 92 | 100 | 112 | 142 | 154 | 187 | 204 | |
| Df | 58 | 65 | 75 | 90 | 100 | 120 | 150 | 180 | 200 | 225 | |
| D1 | 47 | 52 | 62 | 74.5 | 84 | 101.5 | 130 | 155.5 | 170 | 196 | |
| D2(H9) | 30 | 35 | 42 | 47 | 57 | 75 | 90 | 110 | 125 | 140 | |
| D3 | 38 | 38 | 4 | 50 | 60 | 70 | 89 | 102 | 114 | 140 | |
| Lm | 32 | 39 | 45 | 52 | 55 | 63 | 85 | 87 | 110 | 120 | |
| k | 3.5 | 4.5 | 5.5 | 6.0 | 8.0 | 8.0 | 10.0 | 12.0 | 14.0 | 15.0 | |
| t | 1.5 | 1.7 | 2.0 | 2.5 | 2.5 | 2.5 | 3.0 | 4.0 | 4.0 | 5.0 | |
| n | 4 | 4 | 6 | 4 | 6 | 8 | 8 | 8 | 8 | 8 | |
| d | 5.1 | 6.5 | 6.5 | 8.5 | 8.5 | 10.5 | 13 | 15 | 17 | 17 | |
| MI(kg) | 0.14 | 0.16 | 0.38 | 0.38 | 0.53 | 0.53 | 0.87 | 0.87 | 1.65 | 2.14 | |
| Flange bolt | size | M5 | M6 | M6 | M8 | M8 | M10 | M12 | M14 | M16 | M16 |
| Tightening torque(N·m) | 7 | 13 | 13 | 32 | 32 | 64 | 110 | 180 | 270 | 270 |
1. Notations:
L=Standard length, or compressed length for designs with length compensation;
LV=Length compensation;
M=Weight;
Tn=Nominal torque(Yield torque 50% over Tn);
TF=Fatigue torque, I. E. Permissible torque as determined according to the fatigue strength
Under reversing loads;
β=Maximum deflection angle;
MI=weight per 100mm tube
2. Millimeters are used as measurement units except where noted;
3. Please consult us for customizations regarding length, length compensation and
Flange connections.
Standard Length Splined Shafts
Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.
Disc brake mounting interfaces that are splined
There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.
Disc brake mounting interfaces that are helical splined
A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.
