Product Description

Auto Parts Car Front Wheel Hub Bearings

                                                          Application  

            Papermaking machinery                                                                      Speed Reducer   

          Railway Vehicle Axle                                                                  Gear Box Bearing Seat Of Rolling Mill,
          
          Roller Crusher, Vibrating Screen                                                Printing Machinery

          Woodworking Machinery                                                             Various Industrial Reducer

          Vertical Belt Seat Adjusting Center Bearing                                Lifting Transportation 
   

Wheel hub bearing’s main function is to provide accurate CZPT for the rotation of the wheel hub, it carry axial load,
and bear radial load, is a very important component.Wheel hub bearing unit is in the standard angular contact ball bearings
and tapered roller bearings, on the basis of it will be 2 sets of bearing as a whole, the advantages are the assembly
performance is good, can omit clearance adjustment, light weight, tight structure, and load capacity is big, can first fill grease
when sealed bearing, omit the external wheel hub seal and no maintenance etc, and has been widely used in cars,
in a truck also has a tendency to gradually expand the application.

Chrome Steel Wheel Hub Bearings   

Product Name	Wheel Hub Bearings
Precision Rating	P6, P0, P5, P4, P2
Material	Bearing Steel	43(45)	82	37	37	0.76
DAC367629.2/27	36	76	29.2	27	0.55	DAC4482.50037	44	82.5	37	37	0.73
DAC3676571/27	36	76	29	27	0.55	DAC44840042/40	44	84	42	40	0.92
DAC37680034	37	68	34	34	0.52	DAC45770050/45	45	77	50	45
DAC37720033	37	72	33	33	0.58	DAC45800045	45	80	45	45	0.78
DAC37720037	37	72	37	37	0.59	DAC45830039	45	83	39	39	0.83
DAC37725717	37	72.02	37	37	0.59	DAC45840039	45	84	39	39	0.85
DAC3772571	37	72.04	37	37	0.59	DAC45840041/39	45	84	41	39	0.8
DAC37740037	37	74	37	37	0.61	DAC45840042/40	45	84	42	40	0.94
DAC37740045	37	74	45	45	0.79	DAC45840043	45	84	43	43	0.96
DAC38640032/29	38	64	32	39		DAC45840045	45	84	45	45	1
DAC38640036/33	38	64	36	33		DAC45840053	45	84	53	53
DAC38640036/33	38	64	36	33		DAC4585571	45	85	23	23	0.54
DAC38650052/48	38	65	52	48		DAC458500302	45	85	30.2	30.2	0.63
DAC38700037	38	70	37	37	0.56	DAC45850045	45	85	45	45	0.96
DAC38700038	38	70	38	38	0.57	DAC45850047	45	85	47	47	0.98
DAC38710033/30	38	71	33	30	0.5	DAC45850051	45	85	51	51	1.02
DAC38710039	38	71	39	39	0.58	DAC45870041/39	45	87	41	39	0.92
DAC38715713/30	38	71.02	33	30	0.5	DAC45880039	45	88	39	39	0.9
DAC38720036/33	38	72	36	33	0.56	DAC45900054/51	45	90	54	51
DAC38725716/33	38	72.02	36	33	0.56	DAC46780049	46	78	49	49
DAC38720034	38	72	34	34	0.55	DAC46800043/40	46	80	43	40
DAC38720040	38	72	40	40	0.63	DAC47810053	47	81	53	53	1.02
DAC38730040	38	73	40	40	0.67	DAC47850045	47	85	45	45	0.85
DAC38740036	38	74	36	36	0.62	DAC47880055	47	88	55	55
DAC38740036/33	38	74	36	33	0.61	DAC47880055	47	88	55	55
DAC38745716/33	38	74.02	36	33	0.59	DAC47880057.4	47	88	57.4	57.4
DAC38740040	38	74	40	40	0.67	DAC48860042/40	48	86	42	40	0.96
DAC38740050	38	74	50	50	0.85	DAC48890044	48	89	44	44	1.07
DAC38740450	38	74.04	50	50	0.85	DAC48890044/42	48	89	44	42	1.07
DAC38760043/40	38	76	43	40		DAC48900042	48	90	42	42	1.09
DAC38760043	68	76	43	43		DAC49840042/40	49	84	42	40	0.99
DAC3885716/33	38	80.02	36	33		DAC49840043	49	84	43	43
DAC39/41750037	39/41	75	37	37	0.62	DAC49840048	49	84	48	48	1.06
DAC39680037	39	68	37	37	0.48	DAC49840050	49	84	50	50	1.08
DAC39680637	39	68.06	37	37	0.48	DAC49880046	49	88	46	46	1.05
DAC3968571	39	68.07	37	37	0.48	DAC49900045	49	90	45	45	1.08
DAC39720037	39	72	37	37	0.6	DAC50900040	50	90	40	40
DAC39720037	39	72	37	37	0.6	DAC51890044/42	51	89	44	42
DAC39720637	39	72.06	37	37	0.6	DAC51910044	51	91	44	44
DAC39720040	39	72	40	40	0.61	DAC51960050	51	96	50	50
DAC39740036	39	74	36	36	0.54	DAC52910040	52	91	40	40
DAC39740036/34	39	74	36	34	0.52	DAC54900050	54	90	50	50
DAC39740039	39	74	39	39	0.66	DAC54920050	54	92	50	50
DAC39.1740036/34	39.1	74	36	34	0.66	DAC54960051	54	96	51	51
DAC40700043	40	70	43	43	0.63	DAC55900060	55	90	60	60

                                                                         About Us
HENGLI Machinery Company is a well-established Chinese bearing supplier. We design, manufacture and wholesale bearings.
Our specialized manufacturer of Spherical Roller Bearing & Cylindrical Roller Bearing, XIHU (WEST LAKE) DIS. Rolling Bearing Co., Ltd was established in 1970 and is accredited by the Chinese Ministry of Machine Building.

We invested in 2 additional specialized bearing factories, which allow us to provide our clients with top of the line products such 
as Needle Roller Bearings, Spherical Plain Bearings, Rod Ends Bearings, Ball Joint Bearings, Tapered Roller Bearings, Wheel Hub Bearings and Non-Standard Bearings.

 

 

FAQ
Q1 – What is our advantages?

     A    – Manufacturer – Do it only with the Best;

            -Your Choice make different. 

Q2 – Our Products

 A   – Spherical Roller Bearing, Cylindrical Roller Bearing, Needle Roller Bearing, Cam Followers, Thrust Bearing

      – Spherical Plain Bearing, Rod End, Ball Joint, Wheel Hub, Tapered Roller Bearing

Q3 – Process of our production

 A – Heat Treatment – Grinding – Parts Inspection – Assembly – Final Inspection – Packing

Q4 – How to customize bearing(non-standard) from your company?

 A -We offer OEM,Customized(Non-standard) service and you need to provide drawing and detailed Technical Data.

Q5 –   What should I care before installation?

 A   – Normally, the preservative with which new bearings are coated before leaving the factory does not need to be

        removed; it is only necessary to wipe off the outside cylin­drical surface and bore, if the grease is not compatible

        with the preservative, it is necessary to wash and carefully dry the bearing.

      -Bearings should be installed in a dry, dust-free room away from metal working or other machines producing

        swarf and dust.

Q6 – How to stock and maintenance my bearings right? 

 A   – Do not store bearings directly on concrete floors, where water can condense and collect on the bearing;

      -Store the bearings on a pallet or shelf, in an area where the bearings will not be subjected to high humidity

       or sudden and severe temperature changes that may result in condensation forming;

      -Always put oiled paper or, if not available, plastic sheets between rollers and cup races of tapered roller bearings.

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.