Product Description
1.;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”.;
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. 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.;
2.;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.;
The following table for SWC Medium-sized Universal Shaft Parameters.;
Designs
Data and Sizes of SWCZ Series Universal Joint Couplings
| pe | Design Data Item |
SWC160 | SWC180 | SWC200 | SWC225 | SWC250 | SWC265 | SWC285 | SWC315 | SWC350 | SWC390 | SWC440 | SWC490 | SWC550 | SWC620 |
| A | L | 740 | 800 | 900 | 1000 | 1060 | 1120 | 1270 | 1390 | 1520 | 1530 | 1690 | 1850 | 2060 | 2280 |
| LV | 100 | 100 | 120 | 140 | 140 | 140 | 140 | 140 | 150 | 170 | 190 | 190 | 240 | 250 | |
| M(kg); | 65 | 83 | 115 | 152 | 219 | 260 | 311 | 432 | 610 | 804 | 1122 | 1468 | 2154 | 2830 | |
| B | L | 480 | 530 | 590 | 640 | 730 | 790 | 840 | 930 | 100 | 1571 | 1130 | 1340 | 1400 | 1520 |
| M(kg); | 44 | 60 | 85 | 110 | 160 | 180 | 226 | 320 | 440 | 590 | 820 | 1090 | 1560 | 2100 | |
| C | L | 380 | 420 | 480 | 500 | 560 | 600 | 640 | 720 | 782 | 860 | 1040 | 1080 | 1220 | 1360 |
| M(kg); | 35 | 48 | 66 | 90 | 130 | 160 | 189 | 270 | 355 | 510 | 780 | 970 | 1330 | 1865 | |
| D | L | 520 | 580 | 620 | 690 | 760 | 810 | 860 | 970 | 1030 | 1120 | 1230 | 1360 | 1550 | 1720 |
| M(kg); | 48 | 65 | 90 | 120 | 173 | 220 | 250 | 355 | 485 | 665 | 920 | 1240 | 1765 | 2390 | |
| E | L | 800 | 850 | 940 | 1050 | 1120 | 1180 | 1320 | 1440 | 1550 | 1710 | 1880 | 2050 | 2310 | 2540 |
| LV | 100 | 100 | 120 | 140 | 140 | 140 | 140 | 140 | 150 | 170 | 190 | 190 | 240 | 250 | |
| M(kg); | 70 | 92 | 126 | 165 | 238 | 280 | 340 | 472 | 660 | 886 | 1230 | 1625 | 2368 | 3135 | |
| Tn(kN·m); | 16 | 22.;4 | 31.;5 | 40 | 63 | 80 | 90 | 125 | 180 | 250 | 355 | 500 | 710 | 1000 | |
| TF(kN·m); | 8 | 11.;2 | 16 | 20 | 31.;5 | 40 | 45 | 63 | 90 | 125 | 180 | 250 | 355 | 500 | |
| Β(°); | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | |
| D | 160 | 180 | 200 | 225 | 250 | 265 | 285 | 315 | 350 | 390 | 440 | 490 | 550 | 620 | |
| Df | 160 | 180 | 200 | 225 | 250 | 265 | 285 | 315 | 350 | 3690 | 440 | 490 | 550 | 620 | |
| D1 | 137 | 155 | 170 | 196 | 218 | 233 | 245 | 280 | 310 | 345 | 390 | 435 | 492 | 555 | |
| D2(H9); | 100 | 105 | 120 | 135 | 150 | 160 | 170 | 185 | 210 | 235 | 255 | 275 | 320 | 380 | |
| D3 | 108 | 114 | 140 | 159 | 168 | 180 | 194 | 219 | 245 | 273 | 299 | 325 | 402 | 426 | |
| Lm | 95 | 105 | 110 | 125 | 140 | 150 | 160 | 180 | 195 | 215 | 260 | 270 | 305 | 340 | |
| K | 16 | 17 | 18 | 20 | 25 | 25 | 27 | 32 | 35 | 40 | 42 | 47 | 50 | 55 | |
| T | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 8 | 10 | 12 | 12 | 12 | |
| N | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 10 | 16 | 16 | 16 | 16 | |
| D | 15 | 17 | 17 | 17 | 19 | 19 | 21 | 23 | 23 | 25 | 28 | 31 | 31 | 38 | |
| B | 20 | 24 | 32 | 32 | 40 | 40 | 40 | 40 | 50 | 70 | 80 | 90 | 100 | 100 | |
| G | 6.;0 | 7.;0 | 9.;0 | 9.;0 | 12.;5 | 12.;5 | 12.;5 | 15.;0 | 16.;0 | 18.;0 | 20.;0 | 22.;5 | 22.;5 | 25 | |
| MI(Kg); | 2.;57 | 3 | 3.;85 | 3.;85 | 5.;17 | 6 | 6.;75 | 8.;25 | 10.;6 | 13 | 18.;50 | 23.;75 | 29.;12 | 38.;08 | |
| Size | M14 | M16 | M16 | M16 | M18 | M18 | M20 | M22 | M22 | M24 | M27 | M30 | M30 | M36 | |
| Tightening torque(Nm); | 180 | 270 | 270 | 270 | 372 | 372 | 526 | 710 | 710 | 906 | 1340 | 1820 | 1820 | 3170 |
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.;
(DIN or SAT etc.; );
Types of Splines
There are 4 types of splines: Involute, Parallel key, helical, and ball. Learn about their characteristics. And, if you’re not sure what they are, you can always request a quotation. These splines are commonly used for building special machinery, repair jobs, and other applications. The CZPT Manufacturing Company manufactures these shafts. It is a specialty manufacturer and we welcome your business.
Involute splines
The involute spline provides a more rigid and durable structure, and is available in a variety of diameters and spline counts. Generally, steel, carbon steel, or titanium are used as raw materials. Other materials, such as carbon fiber, may be suitable. However, titanium can be difficult to produce, so some manufacturers make splines using other constituents.
When splines are used in shafts, they prevent parts from separating during operation. These features make them an ideal choice for securing mechanical assemblies. Splines with inward-curving grooves do not have sharp corners and are therefore less likely to break or separate while they are in operation. These properties help them to withstand high-speed operations, such as braking, accelerating, and reversing.
A male spline is fitted with an externally-oriented face, and a female spline is inserted through the center. The teeth of the male spline typically have chamfered tips to provide clearance with the transition area. The radii and width of the teeth of a male spline are typically larger than those of a female spline. These specifications are specified in ANSI or DIN design manuals.
The effective tooth thickness of a spline depends on the involute profile error and the lead error. Also, the spacing of the spline teeth and keyways can affect the effective tooth thickness. Involute splines in a splined shaft are designed so that at least 25 percent of the spline teeth engage during coupling, which results in a uniform distribution of load and wear on the spline.
Parallel key splines
A parallel splined shaft has a helix of equal-sized grooves around its circumference. These grooves are generally parallel or involute. Splines minimize stress concentrations in stationary joints and allow linear and rotary motion. Splines may be cut or cold-rolled. Cold-rolled splines have more strength than cut spines and are often used in applications that require high strength, accuracy, and a smooth surface.
A parallel key splined shaft features grooves and keys that are parallel to the axis of the shaft. This design is best suited for applications where load bearing is a primary concern and a smooth motion is needed. A parallel key splined shaft can be made from alloy steels, which are iron-based alloys that may also contain chromium, nickel, molybdenum, copper, or other alloying materials.
A splined shaft can be used to transmit torque and provide anti-rotation when operating as a linear guide. These shafts have square profiles that match up with grooves in a mating piece and transmit torque and rotation. They can also be easily changed in length, and are commonly used in aerospace. Its reliability and fatigue life make it an excellent choice for many applications.
The main difference between a parallel key splined shaft and a keyed shaft is that the former offers more flexibility. They lack slots, which reduce torque-transmitting capacity. Splines offer equal load distribution along the gear teeth, which translates into a longer fatigue life for the shaft. In agricultural applications, shaft life is essential. Agricultural equipment, for example, requires the ability to function at high speeds for extended periods of time.
Involute helical splines
Involute splines are a common design for splined shafts. They are the most commonly used type of splined shaft and feature equal spacing among their teeth. The teeth of this design are also shorter than those of the parallel spline shaft, reducing stress concentration. These splines can be used to transmit power to floating or permanently fixed gears, and reduce stress concentrations in the stationary joint. Involute splines are the most common type of splined shaft, and are widely used for a variety of applications in automotive, machine tools, and more.
Involute helical spline shafts are ideal for applications involving axial motion and rotation. They allow for face coupling engagement and disengagement. This design also allows for a larger diameter than a parallel spline shaft. The result is a highly efficient gearbox. Besides being durable, splines can also be used for other applications involving torque and energy transfer.
A new statistical model can be used to determine the number of teeth that engage for a given load. These splines are characterized by a tight fit at the major diameters, thereby transferring concentricity from the shaft to the female spline. A male spline has chamfered tips for clearance with the transition area. ANSI and DIN design manuals specify the different classes of fit.
The design of involute helical splines is similar to that of gears, and their ridges or teeth are matched with the corresponding grooves in a mating piece. It enables torque and rotation to be transferred to a mate piece while maintaining alignment of the 2 components. Different types of splines are used in different applications. Different splines can have different levels of tooth height.
Involute ball splines
When splines are used, they allow the shaft and hub to engage evenly over the shaft’s entire circumference. Because the teeth are evenly spaced, the load that they can transfer is uniform and their position is always the same regardless of shaft length. Whether the shaft is used to transmit torque or to transmit power, splines are a great choice. They provide maximum strength and allow for linear or rotary motion.
There are 3 basic types of splines: helical, crown, and ball. Crown splines feature equally spaced grooves. Crown splines feature involute sides and parallel sides. Helical splines use involute teeth and are often used in small diameter shafts. Ball splines contain a ball bearing inside the splined shaft to facilitate rotary motion and minimize stress concentration in stationary joints.
The 2 types of splines are classified under the ANSI classes of fit. Fillet root splines have teeth that mesh along the longitudinal axis of rotation. Flat root splines have similar teeth, but are intended to optimize strength for short-term use. Both types of splines are important for ensuring the shaft aligns properly and is not misaligned.
The friction coefficient of the hub is a complex process. When the hub is off-center, the center moves in predictable but irregular motion. Moreover, when the shaft is centered, the center may oscillate between being centered and being off-center. To compensate for this, the torque must be adequate to keep the shaft in its axis during all rotation angles. While straight-sided splines provide similar centering, they have lower misalignment load factors.
Keyed shafts
Essentially, splined shafts have teeth or ridges that fit together to transfer torque. Because splines are not as tall as involute gears, they offer uniform torque transfer. Additionally, they provide the opportunity for torque and rotational changes and improve wear resistance. In addition to their durability, splined shafts are popular in the aerospace industry and provide increased reliability and fatigue life.
Keyed shafts are available in different materials, lengths, and diameters. When used in high-power drive applications, they offer higher torque and rotational speeds. The higher torque they produce helps them deliver power to the gearbox. However, they are not as durable as splined shafts, which is why the latter is usually preferred in these applications. And while they’re more expensive, they’re equally effective when it comes to torque delivery.
Parallel keyed shafts have separate profiles and ridges and are used in applications requiring accuracy and precision. Keyed shafts with rolled splines are 35% stronger than cut splines and are used where precision is essential. These splines also have a smooth finish, which can make them a good choice for precision applications. They also work well with gears and other mechanical systems that require accurate torque transfer.
Carbon steel is another material used for splined shafts. Carbon steel is known for its malleability, and its shallow carbon content helps create reliable motion. However, if you’re looking for something more durable, consider ferrous steel. This type contains metals such as nickel, chromium, and molybdenum. And it’s important to remember that carbon steel is not the only material to consider.
