China best High Quality Factory Directly Supply DAC Series Front Wheel Hub Bearing For Auto Parts/Car/Automotive/Auto Spare Part/BW Bearings DAC255200206 near me factory

Product Description

High Quality Factory Directly Supply DAC Series Front Wheel Hub Bearing For Auto Parts/Car/Automotive
/Auto Spare Part/BW Bearings DAC25525716

                                                          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,Cam Follower Bearings,Thrust 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.

Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

Threads

The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
screwshaft

Lead

In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

Pitch

The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
screwshaft

Size

The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
screwshaft

Shape

Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

Lubrication

In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

China best High Quality Factory Directly Supply DAC Series Front Wheel Hub Bearing For Auto Parts/Car/Automotive/Auto Spare Part/BW Bearings DAC255200206   near me factory China best High Quality Factory Directly Supply DAC Series Front Wheel Hub Bearing For Auto Parts/Car/Automotive/Auto Spare Part/BW Bearings DAC255200206   near me factory