Product Description

Welcome to choose KORTON INDUSTRIAL LIMITED.; 
NO 1.; our adwantages:;

1.; 14 years bearing products manufacturing and 4 years exporting experiences.;
2.; OEM order and non-standard bearing order can be accepted.;
3.; Our main bearing products include Deep groove ball bearings,; tapered roller bearings,; cylindrical rollerbearings,; spherical ball bearings,; spherical roller bearings,;  angular contact bearings,; needle roller bearings,; thrust ball bearings,; spherical plain bearings,; spherical bearings,; automotive bearings pump bearings,; and many nonstandard bearings are also in our product range.;
4.; Sample available
 
NO 2.; Description:; Needle Bearing
   

1	Drawn Cup Needle Bearing	HK,; BK
2	Needle Bearing with Inner Ring	NA,; NKI
3	Needle Bearing without Inner Ring	NK,; RNA
4	Full Complement Needle Bearing	NAV
5	Radial Needle Roller and Cage Assemblies	K,; KK
6	Thrust Needle Roller and Cage Assemblies	AXK,; AS

 
 NO 3.; OEM all brand bearing
1.; deep groove ball bearing 6000,;6200,;6300,;6400,;61800,;61900,;Z,;RS,;ZZ,;2RS
2.; spherical roller bearing 22200,;22300,;23000,;24000,;23100,;24100,;CA,;CC,;E,;W33
3.; cylindrical roller bearing N,;NU,;NJ,;NN,;NUP,;E,;ECP,;ECM,;ECJ
4.; taper roller bearing 35710,;30300,;32200,;32300,;31300,;32000
5.; Aligning ball bearing 1200,;1300,;2200,;2300,;
6.; needle roller bearing NA,;NAV,;NK,;NKI,;RNA,;NK,;RNAV,;ZKLF,;ZKLN,;ZARF,;ZARN
7.; thrust ball bearing 51100,;51200,;51300,;51400,;E,;M
8.; angular contact ball bearing7000,;7100,;7200,;7300,;AC,;BECBM,;C 
9.; spherical plain bearing GE,;GEG,;GEEW,;U,;UC,;UG,;GX,;GAC,;SA,;SABP

10.;Wheel hub bearing /ceramic bearing/plastic bearing/lazy susan bearing
 
 NO 4.; Needle Bearing Specification:;
 

Seals Types	OPEN
Vibration Level	Z1V1,;Z2V2,;Z3V3
Clearance	C2,;C0,;C3,;C4,;C5
Tolerance Codes	ABEC-1,;ABEC-3,;ABEC-5
Materral	GCr15-China/AISI52100-USA/Din100Cr6-Germany
MOQ	1Set at least
Delivery Time	15-45 days after contract
Payment Terms	TT/PAPAL/WESTERN UNION
Pavkage	Tube package+outer carton+pallets;Single box+outer carton+pallets; Tube pavkge+middle box+outer carton+pallets; According to your requirement

 
NO 5.; Needle Bearing Models and Size:; 
 

Bearing Designation		Boundary Dimensions			Basic Load Ratings		Limiting Speed
HK	BK	Fw	D	C	Cr Dynamic	Cor Static	Oil
		mm	mm	mm	Nm	Nm
HK0306TN	BK0306TN	3	6.;5	6	1320	950	60000
HK0408TN	BK0408TN	4	8	8	1540	1070	40000
HK0509	BK0509	5	9	9	2200	1790	36000
HK0608	–	6	10	8	1830	1550	32000
HK0609	BK0609	6	10	9	2650	2400	3000
HK0708	–	7	11	8	2800	2150	27000
HK0709	BK0709	7	11	9	2800	2150	27000
HK0808	BK0808	8	12	8	2550	2400	21000
HK571	BK571	8	12	10	3700	3450	21000
HK08×14×10	–	8	14	10	3800	3950	25000
HK08×14×12	–	8	14	12	4100	4320	25000
HK571	BK571	9	13	10	4050	4250	25000
HK571	–	9	13	12	5000	6000	25000
HK1571	BK1571	10	14	10	3900	4800	19000
HK1012	BK1012	10	14	10	5000	6300	19000
HK1015	–	10	14	15	6700	7800	19000
HK10×16×10	–	10	16	10	6800	8800	18000
HK10×16×12	–	10	16	12	6800	8800	18000
HK10×16×15	–	10	16	15	6800	8800	19000
HK1210	BK1210	12	16	10	4150	5800	19000
HK1212	BK1212	12	18	12	3800	5100	15000
HK12×17×12	–	12	17	12	5100	7000	15000
HK12×17×15	–	12	17	15	5100	7000	15000
HK12×17×18	–	12	17	18	5100	7000	15000
HK12×18×12	BK12×18×12	12	18	12	550	6300	17000
HK1312	BK1312	13	19	12	6200	7100	17000
HK13.;5×20×12	–	13.;5	20	12	6250	7590	16000
HK1412	–	14	20	12	6800	7500	14000
HK1416	–	14	20	16	7300	9000	14000
HK15×20×12	–	15	20	12	5800	6000	14000
HK15×20×16	–	15	20	16	6000	6200	14000
HK15×20×20	–	15	20	20	6100	6400	14000
HK1512	BK1512	15	21	12	7000	8400	14000
HK1514	–	15	21	14	8500	10400	13000
HK1515	–	15	21	15	9100	11400	13000
HK1516	BK1516	15	21	16	9800	11400	14000
HK1522	–	15	21	22	10400	16500	14000
HK15×22×12	–	15	22	12	14300	18400	13000
HK1612	BK1612	16	22	12	7100	9200	14000
HK1614	–	16	22	14	8800	9900	12000
HK1616	BK1616	16	22	16	15710	14300	14000
HK1622	–	16	22	22	11100	17400	14000
HK1712	–	17	23	12	6900	9300	13000
HK1714	–	17	23	14	6800	15710	10000
HK1716	–	17	23	16	8500	12500	10000
HK1718	–	17	23	18	9500	10600	10000
HK17×25×14	–	17	25	14	13100	147000	10000
HK17×25×18	–	17	25	18	9500	10600	11000
HK1812	–	18	24	12	7100	9900	12000
HK1816	BK1816	18	24	16	10600	15300	12000
HK2571	–	20	26	10	5900	7200	10000
HK2014	–	20	26	14	9700	18100	9000
HK2016	BK2016	20	26	16	11700	29100	10000
HK2018	–	20	26	18	7900	12800	9000
HK2571	–	20	26	20	13700	24000	10000
HK2030	–	20	26	30	21800	40000	15710
HK20×27×20	–	20	27	20	26300	47800	9900
HK2210	–	22	28	10	7200	9500	1571
HK2212	BK2212	22	28	12	8100	10400	1571
HK22×29×30	–	22	29	30	19400	33100	9000
HK2512	BK2512	25	32	12	10000	14200	9000
HK2525	BK2525	25	32	25	22200	36700	9000
HK2816	BK2816	28	35	16	15400	22500	8700
HK2820	BK2820	28	35	20	18900	32000	8700
HK3012	BK3012	30	37	12	15710	16200	8100
HK3571	BK3571	30	37	20	19700	33500	8100
HK3224	–	32	39	24	25500	5200	7300
HK3516	BK3516	35	42	16	15700	27500	7100
HK4012	BK4012	40	47	12	14000	24300	6300
HK4512	BK4512	45	52	12	12900	22500	5800
HK5571	BK5571	50	58	20	28000	60000	5300
HK6012	BK6012	60	68	12	12400	29000	4100

 

Shaft Dia	Unit No.;	Dimensions (mm);						Basic Load Ratings		Limiting speed	Weight
mm		d	F	D	B	r min	S	C KN	C0 KN	r/min	g
10	NA4900	10	14	22	13	0.;3	0.;5	8.;5	9.;2	20000	23
12	NA4901	12	16	24	13	0.;3	0.;5	9.;4	10.;9	17000	26
15	NA4902	15	20	28	13	0.;3	0.;5	10.;6	13.;6	14000	34
17	NA4903	17	22	30	13	0.;3	0.;5	11	14.;6	12000	37
20	NA4904	20	25	37	17	0.;3	0.;8	21	25.;5	10000	141
22	NA49/22	22	28	39	17	0.;3	0.;8	22.;8	29.;5	9500	80
25	NA4905	25	30	42	17	0.;3	0.;8	23.;6	31.;5	9500	88
28	NA49/28	28	32	45	17	0.;3	0.;8	24.;4	33.;5	8500	97.;7
30	NA4906	30	35	47	17	0.;3	0.;8	25	35.;5	8000	101
32	NA49/32	32	40	52	20	0.;6	0.;8	30.;5	47.;5	7000	158
35	NA4907	35	42	55	20	0.;6	0.;8	31.;5	50	7000	170
40	NA4908	40	48	62	22	0.;6	1	43	67	6000	230
45	NA4909	45	52	68	22	0.;6	1	45	73	8500	5500
50	NA4910	50	58	72	22	0.;6	1	47	80	5000	274
55	NA4911	55	63	80	25	1	1.;5	58	100	4700	393
60	NA4912	60	68	85	25	1	1.;5	60	108	4300	426
65	NA4913	65	72	90	25	1	1.;5	61	112	4100	456
70	NA4914	70	80	100	30	1	1.;5	84	156	3800	728
75	NA4915	75	85	105	30	1	1.;5	86	162	3600	775
80	NA4916	80	90	110	30	1	1.;5	89	174	3400	878
85	NA4917	85	100	120	35	1.;1	1	111	237	2800	1250
90	NA4918	90	105	125	35	1.;1	1	114	250	3000	1312
95	NA4919	95	110	130	3	1.;1	1	116	260	2800	1371
100	NA4920	100	115	140	40	1.;1	2	128	270	2900	1900
110	NA4922	110	125	150	40	1.;1	2	132	290	2600	2070
120	NA4924	120	135	165	45	1.;1	2	181	390	2300	2860
130	NA4926	130	150	180	50	1.;5	1.;5	203	470	2000	3900
140	NA4928	140	160	190	50	1.;5	1.;5	209	500	1800	4150

NO.;	NO.;	SIZE
WITH INNER	WITHOUT INNER	mm
		d	Fw	D	C	r min
NA5902	RNA5902	15	20	28	18	0.;3
NA5903	RNA5903	17	22	30	18	0.;3
NA5904	RNA5904	20	25	37	23	0.;3
NA59/22	RNA59/22	22	28	39	23	0.;3
NA5905	RNA5905	25	30	42	23	0.;3
NA59/28	RNA59/28	28	32	45	23	0.;3
NA5906	RNA5906	30	35	47	23	0.;3
NA59/32	RNA59/32	32	40	52	27	0.;6
NA5907	RNA5907	35	42	55	27	0.;6
NA5908	RNA5908	40	48	62	30	0.;6
NA5909	RNA5909	45	52	68	30	0.;6
NA5910	RNA5910	50	58	72	30	0.;6
NA5911	RNA5911	55	63	80	34	1
NA5912	RNA5912	60	68	85	34	1
NA5913	RNA5913	65	72	90	34	1
NA5914	RNA5914	70	80	100	40	1
NA5915	RNA5915	75	85	105	40	1
NA5916	RNA5916	80	90	110	40	1
NA5917	RNA5917	85	100	120	46	1.;1
NA5918	RNA5918	90	105	125	46	1.;1
NA5919	RNA5919	95	110	130	46	1.;1
NA5920	RNA5920	100	115	140	54	1.;1
NA5922	RNA5922	110	125	150	54	1.;1
NA5924	RNA5924	120	135	165	60	1.;1
NA5926	RNA5926	130	150	180	67	1.;5
NA5928	RNA5928	140	160	190	67	1.;5

 

Bearing                     NO.;	Shaft   Diameter  (mm);	Dimension(mm);			Mass   Approx  (g);
Current Code		Fw	D	C
K3X5X7TN	3	3	5	7	0.;3
K3X5X9TN	3	3	5	9	0.;4
K3X6X7TN	3	3	6	7	0.;4
K4X7X7TN	4	4	7	7	0.;5
K4X7X10TN	4	4	7	10	0.;7
K5X8X8TN	5	5	8	8	0.;7
K5X8X10TN	5	5	8	10	0.;9
K6X9X8TN	6	6	9	8	0.;8
K6X9X10TN	6	6	9	10	1
K6X10X13TN	6	6	10	13	1.;3
K7X10X8TN	7	7	10	8	0.;9
K7X10X10TN	7	7	10	10	1.;1
K8X11X8TN	8	8	11	8	1.;1
K8X11X10TN	8	8	11	10	1.;7
K8X11X13TN	8	8	11	13	1.;8
K8X12X10TN	8	8	12	10	1.;3
K9X12X10TN	9	9	12	10	1.;5
K9X12X13TN	9	9	12	13	1.;9
K10X13X10TN	10	10	13	10	1.;6
K10X13X13TN	10	10	13	13	2.;1
K10X13X16TN	10	10	13	16	2.;2
K10X14X10TN	10	10	14	10	2.;9
K10X14X13TN	10	10	14	13	4.;3
K10X16X12TN	10	10	16	12	3.;7
K12X15X9TN	12	12	15	9	2.;7
K12X15X10TN	12	12	15	10	1.;9
K12X15X13TN	12	12	15	13	2.;4
K12X16X8TN	12	12	16	8	2.;9
K12X16X10TN	12	12	16	10	3.;4
K12X16X13TN	12	12	16	13	3.;8
K12X17X13TN	12	12	17	13	4.;4
K12X18X12TN	12	12	18	12	5
K12X15X20TN	12	12	15	20	3.;8
K14X17X10	14	14	17	10	4
K14X17X17	14	14	17	17	6.;8
K14X18X10	14	14	18	10	4.;8
K14X18X13	14	14	18	13	6.;3
K14X18X14	14	14	18	14	6.;8
K14X18X15	14	14	18	15	7.;3
K14X18X17	14	14	18	17	8.;1
K14X20X12	14	14	20	12	8.;6
K15X18X14	15	15	18	14	5.;3
K15X18X17	15	15	18	17	6.;4
K15X19X10	15	15	19	10	5.;1

 

Why Choose Us:;
 
We are an industrial and trading company.;We have our own brand:; SFNB .;If you interested in our product,;I can take you to visit our factory.;
Our factory have advanced testing equipment,;before the every product leave the factory,;we will be testing.;We can send samples to you,;you can test the quality,;and if you accept the sample quality,;we can promise:; the follow-up orders’ quality will be the same as samples.;
About ordinary standard type of bearing ,;We have rich inventory,;not have MOQ,;if your need a product is Non-standard size,;need customize,;we will according the product size to determine the MOQ.;
Our company can accept OEM,;you can send sample to me,;we can manufacturing products the same as sample.;Meanwhile,;we also can accept some well-known brands of OEM,;
If the amount of money is less,;you can pay it by Paypal.;Of course you can payment by TT or Western Union etc.;

Calculating the Deflection of a Worm Shaft

In this article, we’ll discuss how to calculate the deflection of a worm gear’s worm shaft. We’ll also discuss the characteristics of a worm gear, including its tooth forces. And we’ll cover the important characteristics of a worm gear. Read on to learn more! Here are some things to consider before purchasing a worm gear. We hope you enjoy learning! After reading this article, you’ll be well-equipped to choose a worm gear to match your needs.

Calculation of worm shaft deflection

The main goal of the calculations is to determine the deflection of a worm. Worms are used to turn gears and mechanical devices. This type of transmission uses a worm. The worm diameter and the number of teeth are inputted into the calculation gradually. Then, a table with proper solutions is shown on the screen. After completing the table, you can then move on to the main calculation. You can change the strength parameters as well.
The maximum worm shaft deflection is calculated using the finite element method (FEM). The model has many parameters, including the size of the elements and boundary conditions. The results from these simulations are compared to the corresponding analytical values to calculate the maximum deflection. The result is a table that displays the maximum worm shaft deflection. The tables can be downloaded below. You can also find more information about the different deflection formulas and their applications.
The calculation method used by DIN EN 10084 is based on the hardened cemented worm of 16MnCr5. Then, you can use DIN EN 10084 (CuSn12Ni2-C-GZ) and DIN EN 1982 (CuAl10Fe5Ne5-C-GZ). Then, you can enter the worm face width, either manually or using the auto-suggest option.
Common methods for the calculation of worm shaft deflection provide a good approximation of deflection but do not account for geometric modifications on the worm. While Norgauer’s 2021 approach addresses these issues, it fails to account for the helical winding of the worm teeth and overestimates the stiffening effect of gearing. More sophisticated approaches are required for the efficient design of thin worm shafts.
Worm gears have a low noise and vibration compared to other types of mechanical devices. However, worm gears are often limited by the amount of wear that occurs on the softer worm wheel. Worm shaft deflection is a significant influencing factor for noise and wear. The calculation method for worm gear deflection is available in ISO/TR 14521, DIN 3996, and AGMA 6022.
The worm gear can be designed with a precise transmission ratio. The calculation involves dividing the transmission ratio between more stages in a gearbox. Power transmission input parameters affect the gearing properties, as well as the material of the worm/gear. To achieve a better efficiency, the worm/gear material should match the conditions that are to be experienced. The worm gear can be a self-locking transmission.
The worm gearbox contains several machine elements. The main contributors to the total power loss are the axial loads and bearing losses on the worm shaft. Hence, different bearing configurations are studied. One type includes locating/non-locating bearing arrangements. The other is tapered roller bearings. The worm gear drives are considered when locating versus non-locating bearings. The analysis of worm gear drives is also an investigation of the X-arrangement and four-point contact bearings.

Influence of tooth forces on bending stiffness of a worm gear

The bending stiffness of a worm gear is dependent on tooth forces. Tooth forces increase as the power density increases, but this also leads to increased worm shaft deflection. The resulting deflection can affect efficiency, wear load capacity, and NVH behavior. Continuous improvements in bronze materials, lubricants, and manufacturing quality have enabled worm gear manufacturers to produce increasingly high power densities.
Standardized calculation methods take into account the supporting effect of the toothing on the worm shaft. However, overhung worm gears are not included in the calculation. In addition, the toothing area is not taken into account unless the shaft is designed next to the worm gear. Similarly, the root diameter is treated as the equivalent bending diameter, but this ignores the supporting effect of the worm toothing.
A generalized formula is provided to estimate the STE contribution to vibratory excitation. The results are applicable to any gear with a meshing pattern. It is recommended that engineers test different meshing methods to obtain more accurate results. One way to test tooth-meshing surfaces is to use a finite element stress and mesh subprogram. This software will measure tooth-bending stresses under dynamic loads.
The effect of tooth-brushing and lubricant on bending stiffness can be achieved by increasing the pressure angle of the worm pair. This can reduce tooth bending stresses in the worm gear. A further method is to add a load-loaded tooth-contact analysis (CCTA). This is also used to analyze mismatched ZC1 worm drive. The results obtained with the technique have been widely applied to various types of gearing.
In this study, we found that the ring gear’s bending stiffness is highly influenced by the teeth. The chamfered root of the ring gear is larger than the slot width. Thus, the ring gear’s bending stiffness varies with its tooth width, which increases with the ring wall thickness. Furthermore, a variation in the ring wall thickness of the worm gear causes a greater deviation from the design specification.
To understand the impact of the teeth on the bending stiffness of a worm gear, it is important to know the root shape. Involute teeth are susceptible to bending stress and can break under extreme conditions. A tooth-breakage analysis can control this by determining the root shape and the bending stiffness. The optimization of the root shape directly on the final gear minimizes the bending stress in the involute teeth.
The influence of tooth forces on the bending stiffness of a worm gear was investigated using the CZPT Spiral Bevel Gear Test Facility. In this study, multiple teeth of a spiral bevel pinion were instrumented with strain gages and tested at speeds ranging from static to 14400 RPM. The tests were performed with power levels as high as 540 kW. The results obtained were compared with the analysis of a three-dimensional finite element model.

Characteristics of worm gears

Worm gears are unique types of gears. They feature a variety of characteristics and applications. This article will examine the characteristics and benefits of worm gears. Then, we’ll examine the common applications of worm gears. Let’s take a look! Before we dive in to worm gears, let’s review their capabilities. Hopefully, you’ll see how versatile these gears are.
A worm gear can achieve massive reduction ratios with little effort. By adding circumference to the wheel, the worm can greatly increase its torque and decrease its speed. Conventional gearsets require multiple reductions to achieve the same reduction ratio. Worm gears have fewer moving parts, so there are fewer places for failure. However, they can’t reverse the direction of power. This is because the friction between the worm and wheel makes it impossible to move the worm backwards.
Worm gears are widely used in elevators, hoists, and lifts. They are particularly useful in applications where stopping speed is critical. They can be incorporated with smaller brakes to ensure safety, but shouldn’t be relied upon as a primary braking system. Generally, they are self-locking, so they are a good choice for many applications. They also have many benefits, including increased efficiency and safety.
Worm gears are designed to achieve a specific reduction ratio. They are typically arranged between the input and output shafts of a motor and a load. The 2 shafts are often positioned at an angle that ensures proper alignment. Worm gear gears have a center spacing of a frame size. The center spacing of the gear and worm shaft determines the axial pitch. For instance, if the gearsets are set at a radial distance, a smaller outer diameter is necessary.
Worm gears’ sliding contact reduces efficiency. But it also ensures quiet operation. The sliding action limits the efficiency of worm gears to 30% to 50%. A few techniques are introduced herein to minimize friction and to produce good entrance and exit gaps. You’ll soon see why they’re such a versatile choice for your needs! So, if you’re considering purchasing a worm gear, make sure you read this article to learn more about its characteristics!
An embodiment of a worm gear is described in FIGS. 19 and 20. An alternate embodiment of the system uses a single motor and a single worm 153. The worm 153 turns a gear which drives an arm 152. The arm 152, in turn, moves the lens/mirr assembly 10 by varying the elevation angle. The motor control unit 114 then tracks the elevation angle of the lens/mirr assembly 10 in relation to the reference position.
The worm wheel and worm are both made of metal. However, the brass worm and wheel are made of brass, which is a yellow metal. Their lubricant selections are more flexible, but they’re limited by additive restrictions due to their yellow metal. Plastic on metal worm gears are generally found in light load applications. The lubricant used depends on the type of plastic, as many types of plastics react to hydrocarbons found in regular lubricant. For this reason, you need a non-reactive lubricant.