Product Description
A World Leading Supplier of Bearings and Engineering Spares
Spherical roller bearing 24126 CC/C3W33
Despription
This 24126 CC/C3W33 bearing is a Spherical Roller Bearing with a CZPT ring centred on a flangeless inner ring, 2 stamped steel cages, an annular groove in the outer ring with 3 lubrication holes and a greater than normal radial internal clearance. The bearing’s dimensions are 130x210x80.
| 241 | 26 | CC | C3 | W33 | ||
|---|---|---|---|---|---|---|
| Medium, Wide | 130mm – Bore Size | Flangeless Inner Ring with Stamped Steel Cages | Cylindrical Bore | Stamped Steel Cage | Radial Clearance Greater Than Standard | Annular Groove and Three Lubrication Holes in the Outer Ring |
Drawing
Product Information
BRAND:
SKF
SKU:
24126CC/C3W33-SKF
AVAILABILITY:
IN STOCK
WEIGHT:
11.0000 KGS
Technical Data
INSIDE DIAMETER (MM):
130MM
OUTSIDE DIAMETER (MM):
210MM
WIDTH (MM):
80MM
CAGE TYPE:
STEEL
SEALS OR SHIELDS:
OPEN TYPE
CLEARANCE:
C3
DYNAMIC LOAD RATING (KN):
680
STATIC LOAD RATING (KN):
1000
FATIGUE LOAD RATING (KN):
100
REFERENCE SPEED RATING (R/MIN):
1700
LIMITING SPEED RATING (R/MIN):
2400
Features
- Spherical roller bearing with 2 rows of rollers
- pivoting inner ring, misalignments and shaft deflections can be compensated
- suitable for very high radial and relatively high axial loads in both directions
- can carry relatively high loads despite reduced weight
- cage material: sheet steel. Resistant to fatigue and wear; provide good protection against impact loads and acceleration forces
- seal: open (without seal); for higher speeds than with sealed spherical roller bearings and easy relubrication
- good fixed bearing property, but can also be used as a floating bearing, each in both directions
Hot Selling:
ZheJiang CZPT Bearing can supply you with the broadest possible array of bearings. In addition to Ball bearing, Roller bearing, Needle bearing, Pillow Blocks, we manufacture Flange blocks, Rolling mill bearing, Slide bearing and Water pump bearing. Our unparalleled experience as a total manufacturer and exporter for these industries is essential for the development and application of a premier product line for all general industries.
We pride ourselves on our ability to serve every customer, from backyard mechanics, to independent shop owners, to automotive technicians, to large manufacturing plants. Our Target Industries served are Agricultural Equipment, Cranes, Electric Motors, Gearboxes, Material Handling, Packaging Machinery, Power Tools, Pumps, Railways and Transportation, Robotics, and products for Textile Machinery. ZheJiang Bearing Company is a stronger and growing exporter of bearing in China.
In addition to manufacturing commodity-based bearing products, CZPT Bearing makes custom bearing solutions for OEM. ZheJiang CZPT bearing has stringent quality control standards and maintains complete control over supply, using only the highest grade bearing steel.
Our mission is to fully provide for you. Well into our more than Ten years of business, we are confident that you’ll find what you’re looking for in bearing product here. Please call, email, or stop by for more information.
FAQ :
Q1: What does ZheJiang CZPT Bearing & Manufacturing do? What are your specialties?
A1: With over 15 years’ experience, ZheJiang CZPT Bearing is a manufacturer of a full line of standard ball and roller bearings. Currently, we offer 13 different bearing series which are available across a wide size range, including IDs from 5/64″ to 6-1/2″ and ODs from 15/64″ to 13-3/4″.
In addition, we also make custom, made-to-order ball bearings and roller bearing components that aren’t shown on our website or catalog. We have quoted items per print, per sample, and as interchanges for other manufacturer’s products.
Q2: What types and styles of bearings do you make?
A2: We make a variety of bearing types, including ball bearings, roller bearings, thrust bearings, combination bearings, pillow block bearings, custom bearing, and more.
Moreover, we can make bearings in many styles and configurations, including single direction, double direction, caged, banded, separated, open, enclosed, full ball compliment, etc.
Q3: Do you offer any unique secondary services?
A3: Besides bearings, we offer a variety of secondary services to our contract manufacturing customers. Our diverse manufacturing capabilities include CNC turning and machining, manual turning and machining, CNC milling, lapping, super finishing, induction welding, laser marking of finished parts, automatic saw cutting, reverse engineering, and CNC grinding, including ID grinding, OD grinding, cylindrical grinding, centerless grinding, surface grinding, and double disk grinding.
Q4: What services separate ZheJiang CZPT Bearing from other suppliers?
A4: Unlike ZheJiang CZPT Bearing, some bearing suppliers do not manufacture their own products. Many of them purchase bearings in other factory, and quite often, these suppliers will change their source of supply without informing customers, resulting in quality issues. ZheJiang CZPT Bearing’s products are manufactured in north China manufacturing facility.
In addition, we hold a unique spot in the industry because we are CZPT to combine the capabilities of a large bearing manufacturer with the precision and attention to detail of a small bearing shop. This allows us to offer personalized service, short lead times, on-time delivery, trusted bearing expertise, innovative solutions, top quality products, and more.
Q5: Do you have any industry certifications?
A5: Yes. Upon request, we can provide SGS, material certs, inspection reports, and material trace ability. Please include all certifications you require along with your RFQ, if any.
Q6: What is your privacy policy, return policy, and terms & conditions? Is there a warranty?
A6: We do offer a warranty that says all products are free of manufacturing defects, and depending on the circumstances, we may allow returns with a 25% restocking fee.
Q7: What is your manufacturing process?
A7: All materials are sourced domestically (i.e., chrome steel, stainless steel, ceramic, bronze, brass, etc.). Individual components for the bearings are machined in-house on our CNC lathes. Machined pieces are sent out locally for heat treating (hardening). Upon return, the pieces are precision machined, washed, and assembled into finished bearings. Bearings are laser marked and either stocked or packaged for shipping.
Dear friend, For Further Information About Our Products or Services, Contact Our Sales Team via Phone Today
| Bearing No | Dimensions(mm) | Basic Load ratings (KN) | ||||
| Current | d | D | B | rmin | Cr | Cor |
| 24134CC/W33 | 170 | 280 | 109 | 2 | 1050 | 1800 |
| 22234M | 170 | 310 | 86 | 3 | 970 | 1400 |
| 22234CC/W33 | 170 | 310 | 86 | 3 | 970 | 1400 |
| 23234CC/W33 | 170 | 310 | 110 | 3 | 1200 | 1900 |
| 22334M | 170 | 380 | 120 | 3 | 1500 | 2100 |
| 22334CC/W33 | 170 | 380 | 120 | 3 | 1500 | 2100 |
| 23936CC/W33 | 180 | 250 | 52 | 2 | 430 | 800 |
| 23036CC/W33 | 180 | 280 | 74 | 2 | 652 | 1110 |
| 24036CC/W33 | 180 | 260 | 100 | 2 | 652 | 1110 |
| 23136CC/W33 | 180 | 3O0 | 96 | 3 | 1350 | 1860 |
| 24136CC/W33 | 180 | 300 | 118 | 3 | 770 | 1250 |
| 22236M | 180 | 320 | 86 | 3 | 1040 | 1490 |
| 22236CC/W33 | 180 | 320 | 86 | 3 | 1040 | 1490 |
| 23236CC/W33 | 180 | 320 | 112 | 3 | 1200 | 2400 |
| 22336M | 180 | 320 | 126 | 3 | 1040 | 1490 |
| 22336CC/W33 | 180 | 320 | 126 | 3 | 1040 | 1490 |
| 23938CC/W33 | 190 | 260 | 52 | 2 | 460 | 890 |
| 23038CC/W33 | 190 | 290 | 75 | 2.1 | 750 | 1360 |
| 24038CC/W33 | 190 | 290 | 100 | 2.1 | 950 | 1850 |
| 23138CC/W33 | 190 | 320 | 104 | 3 | 1100 | 2000 |
| 24138CC/W33 | 190 | 320 | 128 | 3 | 1400 | 2400 |
| 22238M | 190 | 340 | 92 | 3 | 1100 | 1800 |
| 22238CC/W33 | 190 | 340 | 92 | 4 | 1100 | 1800 |
| 23238CC/W33 | 190 | 340 | 120 | 4 | 1400 | 2300 |
| 22338M | 190 | 400 | 132 | 5 | 1800 | 2700 |
| 22338CC/W33 | 190 | 400 | 132 | 5 | 1800 | 2700 |
| 23940CC/W33 | 200 | 280 | 60 | 2.1 | 500 | 1100 |
| 23040CC/W33 | 200 | 310 | 82 | 2.1 | 900 | 1560 |
| 24040CC/W33 | 200 | 310 | 109 | 2.1 | 1100 | 2100 |
| 23140CC/W33 | 200 | 340 | 112 | 3 | 1300 | 2200 |
| 24140CC/W33 | 200 | 340 | 140 | 3 | 1560 | 2800 |
| 22240M | 200 | 360 | 98 | 4 | 1250 | 1950 |
| 22240CC/W33 | 200 | 360 | 98 | 4 | 1250 | 1950 |
| 23240CC/W33 | 200 | 360 | 128 | 4 | 1600 | 2600 |
| 22340M | 200 | 420 | 138 | 5 | 2000 | 3050 |
| 22340CC/W33 | 200 | 420 | 138 | 5 | 2000 | 3050 |
| 23944CC/W33 | 220 | 300 | 60 | 2.1 | 560 | 1170 |
| 23044CC/W33 | 220 | 340 | 90 | 3 | 980 | 1890 |
| 24044CC/W33 | 220 | 340 | 118 | 3 | 1250 | 2470 |
| 23144CC/W33 | 220 | 370 | 120 | 4 | 1540 | 2570 |
| 24144CC/W33 | 220 | 370 | 150 | 4 | 1800 | 3300 |
| 22244M | 220 | 400 | 108 | 4 | 1500 | 2400 |
| 22244CC/W33 | 220 | 400 | 108 | 4 | 1500 | 2400 |
| 23244CC/W33 | 220 | 400 | 144 | 4 | 2000 | 3300 |
| 22344M | 220 | 460 | 145 | 5 | 2250 | 3400 |
| 22344CC/W33 | 220 | 460 | 145 | 5 | 2250 | 3400 |
| 23948CC/W33 | 240 | 320 | 60 | 2.1 | 565 | 1190 |
| 23048CC/W33 | 240 | 360 | 92 | 3 | 1130 | 2100 |
| 24048CC/W33 | 240 | 360 | 118 | 3 | 1400 | 2700 |
| 23148CC/W33 | 240 | 400 | 128 | 4 | 1700 | 3000 |
| 24148CC/W33 | 240 | 400 | 160 | 4 | 2000 | 3800 |
| 22248M | 240 | 440 | 120 | 4 | 1940 | 3100 |
| 22248CC/W33 | 240 | 440 | 120 | 4 | 1940 | 3100 |
| 23248CC/W33 | 240 | 440 | 160 | 4 | 2340 | 4100 |
| 22348M | 240 | 500 | 155 | 5 | 2700 | 4100 |
| 22348CC/W33 | 240 | 500 | 155 | 5 | 2700 | 4100 |
| 23952CC/W33 | 260 | 360 | 75 | 2.1 | 760 | 1500 |
| 23052CC/W33 | 260 | 400 | 104 | 4 | 1400 | 2600 |
| 24052CC/W33 | 260 | 400 | 140 | 4 | 1800 | 3500 |
| 23152CC/W33 | 260 | 440 | 144 | 4 | 2100 | 3850 |
| 24152CC/W33 | 260 | 440 | 180 | 4 | 2510 | 4600 |
| 22252CC/W33 | 260 | 480 | 130 | 5 | 2230 | 3600 |
| 23252CC/W33 | 260 | 480 | 174 | 5 | 2760 | 4700 |
| 22352CC/W33 | 260 | 540 | 165 | 6 | 3100 | 4750 |
| 23956CC/W33 | 280 | 380 | 75 | 2.1 | 830 | 1750 |
| 23056CC/W33 | 280 | 420 | 106 | 4 | 1500 | 2900 |
| 24056CC/W33 | 280 | 420 | 140 | 4 | 1950 | 3950 |
| 23156C/W33 | 280 | 460 | 146 | 5 | 2300 | 4250 |
| 24156CC/W33 | 280 | 460 | 180 | 5 | 2730 | 5200 |
| 22256CC/W33 | 280 | 500 | 130 | 5 | 2310 | 3800 |
| 23256CC/W33 | 280 | 500 | 176 | 5 | 2900 | 5100 |
| 22356CC/W33 | 280 | 580 | 175 | 6 | 3500 | 5300 |
| 23960CC/W33 | 300 | 420 | 92 | 3 | 1100 | 2300 |
| 23060CC/W33 | 300 | 460 | 118 | 4 | 1890 | 3550 |
| 24060CC/W33 | 300 | 460 | 160 | 4 | 2450 | 4900 |
| 23160CC/W33 | 300 | 500 | 160 | 5 | 2700 | 5000 |
| 24160CC/W33 | 300 | 500 | 200 | 5 | 3300 | 6400 |
| 22260CC/W33 | 300 | 540 | 140 | 5 | 2670 | 4350 |
| 23260CC/W33 | 300 | 540 | 192 | 5 | 3450 | 6000 |
| 22360CC/W33 | 300 | 620 | 185 | 7.5 | 3600 | 5400 |
| 23964CC/W33 | 320 | 440 | 90 | 3 | 1100 | 2460 |
| 23064CC/W33 | 320 | 480 | 121 | 4 | 1900 | 3800 |
| 24064CC/W33 | 320 | 480 | 160 | 4 | 2500 | 5200 |
| 23164CC/W33 | 320 | 540 | 176 | 5 | 3100 | 5800 |
| 24164CC/W33 | 320 | 540 | 218 | 5 | 3800 | 7200 |
| 22264CC/W33 | 320 | 580 | 150 | 5 | 3100 | 5000 |
| 23264CC/W33 | 320 | 580 | 208 | 5 | 4000 | 7000 |
How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings
There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
Involute splines
An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.
Stiffness of coupling
The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.
Misalignment
To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
Wear and fatigue failure
The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.
