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Thrust Roller Bearings (Cylindrical And Taper )
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Four row tapered roller bearing maintenance and maintenance

Four row tapered roller bearing maintenance and maintenance

When selecting the fit, the type of load bearing of the ring should be considered first. Generally
Relationship between bearing fit and type of load

Relationship between bearing fit and type of load

Sometimes the direction and size of the load cannot be determined accurately. For example, in high-speed rotating machinery, in addition to the load bearing the rotor weight is fixed in the direction, there is also the rotating load caused by the unbalanced mass. If the rotating load is much larger than the fixed load, then the resultant load is still the rotating load. If the rotary load is much smaller than the fixed load, the resultant load is the oscillating load. The magnitude and direction of the rotating or swinging load are constantly changing. But in the variable working state, some rings may be subjected to a rotating load, a fixed load, and a swinging load. This load is called an indefinite load.
Relationship between bearing fit and type of load

Relationship between bearing fit and type of load

"creep" phenomenon occurs on the matching surface of its ring on the shaft or in the seat hole. When the load is very light, or when the ring rotates at low speed occasionally under heavy load, the transition fit can be selected. In this case, the shaft surface should have a higher hardness and a smaller surface roughness.
推力滚子轴承

Thrust Roller Bearings (Cylindrical And Taper )

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Parameters

Thrust roller bearing is used to bear the combined axial and radial load, but the radial load should not exceed 55% of the axial load.

Compared with other thrust roller bearings, this kind of bearing has lower friction factor, higher speed and better centering performance.

 

 

Product features

Thrust cylindrical roller bearing and thrust tapered roller bearing are suitable for low speed occasions. The speed of thrust tapered roller bearing is slightly higher than that of thrust cylindrical roller bearing.
Thrust cylindrical roller bearing is a separable bearing, which can only bear unidirectional axial load and slight impact, and can limit the axial displacement in one direction of the shaft (or housing), so it can be used for unidirectional axial positioning.

 


But its bearing capacity is far greater than the thrust ball bearing.
When the roller is rolling, the roller inevitably slides on the raceway of the ring due to the difference in linear velocity between the two ends of the roller. Therefore, the limit speed of this kind of bearing is lower than that of the thrust ball bearing, and it is usually only suitable for low-speed operation.

 

 

Thrust cylindrical roller bearings of standard design are made of metal solid retainers made from vehicles. Retainers of other types or materials may also be used according to customer requirements.

Thrust tapered roller bearing can only bear unidirectional axial load and can limit unidirectional axial displacement of the bearing, so it can be used for unidirectional axial positioning.

 


Compared with thrust cylindrical roller bearing, the bearing capacity is large, the sliding is relatively small, but the limit speed is low.
 

Thrust cylindrical roller bearings are mainly used in heavy-duty machine tools, high-power Marine gearboxes, oil RIGS, vertical motors and other machinery.

 

 

 

thrust roller bearing（T700系列）  
Thrust Cylindrical Roller  Bearings T700 Series
Basic  Sized Basic Rated Load Limit Speed quality Model Number Model Number
Basic  Sized Basic Rated Load Limit Speed Mass Designation Designation
d D H move quiet grease lubrication grease lubrication   (Rollway) (Torrington)
Cr Cor Grease Oil      
Inches KN r / min kg - -
4 7 1.75 494 1,426 980 1,950 5.13 T734  40 TP 114
4 8 1.75 588 2,021 900 1,790 7.47 T735  40 TP 115
4 9 1.75 705 2,929 830 1,650 10.08 T736  40 TP 116
4 10 1.75 855 3,461 770 1,540 13.05 T737  40 TP 117
5 8 1.75 494 1,866 830 1,650 6.075 T738  50 TP 119
5 9 1.75 721 2,812 770 1,540 8.775 T739  50 TP 120
5 10 2 913 3,130 720 1,430 13.5 T740  50 TP 121
5 11 2 1,029 3,876 670 1,340 17.1 T741  50 TP 122
5 12 2 1,229 5,091 630 1,260 21.15 T742  50 TP 123
6 9 2 581 2,003 720 1,430 8.1 T743  60 TP 124
6 10 2 847 2,886 670 1,340 11.25 T744  60 TP 125
6 11 2 1,039 4,138 630 1,260 15.3 T745  60 TP 126
6 12 2 1,188 4,882 600 1,190 18.9 T746  60 TP 127
7 10 2 688 2,448 630 1,260 9 T747  70 TP 129
7 11 2 951 3,519 600 1,190 12.6 T748  70 TP 130
7 12 2 1,120 4,552 570 1,130 18 T749  70 TP 131
7 14 3 1,941 7,112 510 1,020 39.6 T750  70 TP 132
8 12 3 1,148 4,207 540 1,080 21.6 T751  80 TP 134
8 14 3 1,769 6,621 490 980 35.1 T752  80 TP 135
8 16 3 2,298 9,223 450 900 51.3 T753  80 TP 136
10 16 3 1,948 7,775 410 830 39.6 T754  100 TP 143
10 18 3.75 2,733 12,004 380 770 75.6 T755  100 TP 144
10 20 3.75 3,409 14,467 360 720 101.25 T756  100 TP 145
12 18 3.75 2,088 9,042 360 720 60.3 T757  120 TP 151
12 20 4.5 3,224 13,073 340 670 99.9 T758  120 TP 152
12 24 4.5 4,654 20,862 300 600 167.4 T759  120 TP 153
14 20 3.75 2,403 10,614 320 630 68.4 T760  140 TP 158
14 22 3.75 3,257 14,863 300 600 96.75 T761  140 TP 159
14 24 3.75 3,819 19,047 280 570 128.25 T762  140 TP 160
16 22 4.5 2,714 10,514 280 570 92.25 T763  160 TP 164
16 24 4.5 3,910 16,995 270 540 130.5 T764  160 TP 165
16 26 4.5 4,635 21,878 260 510 171 T765  160 TP 166
18 26 5 4,207 17,522 240 490 157.5 T766  180 TP 168
18 28 5 5,277 24,001 230 470 207 T767  180 TP 169
18 30 5.5 6,994 30,054 220 450 283.5 T768  180 TP 170
20 28 5.5 4,858 19,612 220 450 189 T769  200 TP 171
20 30 5.5 6,874 30,640 220 430 247.5 T770  200 TP 172
20 32 6 - 34,933 210 410 337.5 T771  200 TP 173
22 30 5.5 5,170 21,247 210 410 202.5 T772  220 TP 174
22 32 5.5 - 27,382 200 400 265.5 T773  220 TP 175
22 34 6 7,753 35,519 190 380 360 T774  220 TP 176

 

British thrust tapered roller bearing

Thrust Taper Roller Bearings Inch Series
basic size Basic rated load Fast speed quality model number
Basic  Sized Basic Rated Load Limit Speed Mass Designation
d D H move quiet grease lubrication grease lubrication   (Design)
Cr Cor Grease Oil    
Inches KN r / min kg -
4 8.5 1.813 975 3,394 - 1070 9 T-411 
4.4 8.8 2.2 - - - - 11.4 T-441
4.5 9.875 2.125 - - - - 15 T-451
5 10.5 2.313 1,435 5,485 - 860 16.65 T-511 
5.063 10.5 2.313 1,435 5,485 - 860 16.65 T-511A 
5 9.875 2.1875 - - - - 13.9 T-520
6 12.5 2.75 2,025 7,442 - 725 29.7 T-611 
6.5 12.25 3.5 - - - - 38.3 T-651
6.625 12 2.75 1,703 5,887 - 720 25.2 T-661 
6.875 14.125 3.25 2,403 9,002 - 640 41.85 T-691 
7 14.5 3.25 2,678 9,349 - 625 49.05 T-711 
8 16.5 3.625 3,347 12,812 - 550 59.4 T-811 
8 16.5 4.75 - - - - 92.7 T-811X
8 16.5 4.1875 - - - - 81.8 T-811XA
9 19 4.125 4,411 16,896 - 475 106.65 T-911 
9.25 19 4.125 4,411 16,896 - 475 104.4 T-911A 
9.25 21.5 5 6,059 23,790 - 435 157.95 T-921 
10 21.25 4.625 5,475 21,689 - 425 144 T-1011 
11 19.5 5.25 - - - - 125 T-1115
11 23.75 5.375 7,003 27,974 - 385 220.5 T-1120 
14 21 4 - - - - 83.9 T-1421
7.4803 14 2.922 - - - - 35.9 T-7519
9 17 3.495 3,313 12,829 - 510 61.2 T-9020 
14.5 23.75 4.75 - - - - 144 T-14520
16 28 5.75 - - - - 264 T-16021
16 33 7 12,805 50,264 - 275 524.25 T-16050 
48 60 5.375 - - - - 596 T-48000
We could not find any corresponding parameters, please add them to the properties table

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Cylindrical Roller Bearings

Cylindrical Roller Bearings

Cylindrical roller and raceway for line contact bearing. Large load capacity, mainly bearing radial load. The friction between rolling body and ring retaining edge is small, suitable for high speed rotation. According to whether the ring has a side, it can be divided into NU, NJ, NUP, N, NF and other single-row cylindrical roller bearings, and NNU, NN and other double-row cylindrical roller bearings. The bearing is a detachable structure with inner and outer rings. Cylindrical roller bearings with inner ring or outer ring without flank, the inner ring and outer ring can move relative to each other in axial direction, so they can be used as free end bearings. One side of the inner ring and the outer ring has a double flank, and the other side of the ring has a single flank cylindrical roller bearing, which can bear a certain degree of axial load. A steel plate press cage is usually used, or a solid cage is made of copper alloy. But some use polyamide forming cages. 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Taper Roller Bearings

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Tapered roller bearings are separable bearings with tapered raceway in the inner and outer rings of the bearings. This type of bearing can be divided into single row, double row and four row tapered roller bearings according to the number of rollers loaded. Single row tapered roller bearing can bear radial load and single direction axial load. When the bearing bears the radial load, there will be an axial component, so another bearing that can bear the opposite axial force is needed for balance. Tapered roller bearings are radial thrust roller bearings with tapered rollers. There are two kinds of small cone Angle and big cone Angle. The small cone Angle mainly bears radial and axial combined loads, which are usually used in double, and installed in reverse. The inner and outer seat rings can be installed separately, and the radial and axial clearance can be adjusted during installation and use. The large cone Angle mainly bears the combined axial and radial loads, which are mainly axial loads. Generally, it is not used to bear pure axial loads alone. It can be used to bear pure radial loads when it is configured (with the same name). A single row tapered roller bearing has an outer ring with an inner ring and a set of tapered rollers with an inner ring assembly comprising a basket cage. The outer ring can be separated from the inner ring assembly. In accordance with the ISO standard for the dimensions of tapered roller bearings, the outer ring or inner ring assembly of any standard tapered roller bearing shall be interchangeable with the outer ring or inner ring assembly of the same type internationally. That is, the outer ring of the same type shall comply with ISO492 (GB307) in addition to the external dimension and tolerance, the cone Angle of the inner ring assembly, the cone diameter of the assembly, etc., must also comply with the relevant provisions of the exchange. Generally, the cone Angle of the outer ring raceway of single-row tapered roller bearings is between 10° and 19°, and they can withstand the combined action of axial and radial loads. The larger the cone Angle is, the greater the axial load bearing capacity is. Bearing with large taper Angle, rear code plus B, cone Angle between 25°~29°, it can bear larger axial load. In addition, single row tapered roller bearings can be installed to adjust the clearance size. The outer ring (or inner ring) of a double row tapered roller bearing is a whole. Two inner ring (or outer ring) small end face close, the middle of the diaphragm, clearance is adjusted by the thickness of the diaphragm, or the thickness of the diaphragm to adjust the pre-interference of double-row tapered roller bearing. The performance of this kind of bearing is basically the same as that of the double-row tapered roller bearing, but the radial load it bears is larger than that of the double-row tapered roller bearing, the limit speed is a little lower, it is mainly used for heavy machinery. We provide long life, multi - seal double, four row tapered roller bearings. The new personalized design of the bearing is carried out, the traditional design method of the fully sealed bearing is changed, and the new type of sealing structure combining sealing and dustproof is adopted to improve the sealing effect and improve the sealing performance. The service life of multi-seal double and four-row tapered roller bearings is increased by 20% ~ 40% compared with open-type bearings. Consumption of lubricants has been reduced by 80%. use Tapered roller bearings mainly bear radial combined load in diameter and axial direction. Bearing capacity depends on the raceway Angle of the outer ring, the greater the Angle, the greater the bearing capacity. This kind of bearing belongs to separate type bearing, which can be divided into single row, double row and four row tapered roller bearings according to the number of rolling body in the bearing. Clearance of single row tapered roller bearing shall be adjusted by the user during installation; The clearance of double-row and four-row tapered roller bearings has been given according to the customer's requirements when the product leaves the factory, and it does not need to be adjusted by the customer. Tapered roller bearings have a conical inner ring and an outer ring raceway, with tapered rollers arranged in between. All projection lines on the conical surface meet at the same point on the bearing axis. This design makes tapered roller bearings particularly suitable for bearing combined (radial and axial) loads. The axial load capacity of the bearing is mostly determined by the contact Angle a. The greater the alpha Angle, the higher the axial load capacity. The Angle is expressed by the calculation coefficient e; The larger the e value, the larger the contact Angle, the greater the applicability of bearing bearing axial load. Tapered roller bearings are usually separable, i.e., a tapered inner ring consisting of an inner ring of the roller and reta
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Angular Contact Ball Bearings

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A single row angular contact ball bearing is composed of an outer ring, an inner ring, a row of steel balls and a cage. This kind of bearing can bear radial load and axial load at the same time, also can bear pure axial load, and can work at high speed. Single row angular contact ball bearings can only bear axial load in one direction. When subjected to radial loads, additional axial forces will be imposed and only axial displacement of the shaft and housing in one direction can be limited. Although this type of bearing can only withstand unidirectional axial loads, but can be combined with another bearing bearing in the opposite direction. If installed in pairs, the outer rings of a pair of bearings are opposite to each other with the same end face, with the wide end facing the wide end face (back to back DB) and the narrow end facing the narrow end face (face to face DF). 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But the smaller the contact Angle is, the more favorable it is for high-speed rotation. Single row angular contact ball bearings themselves do not have clearance. Only angular contact ball bearings after assembly have internal clearance. According to the requirements of working conditions, the combined bearing is divided into two ways: pre-load (pre-load) and pre-clearance (pre-clearance). The internal clearance of the supporting contact ball bearing in the pre-load group is 0 or negative. It is often used on machine tool spindle to improve spindle rigidity and rotation accuracy. The clearance (pre-load) of the ball bearing with diagonal contact has been adjusted before delivery without user adjustment. Common single row angular contact ball bearing main width tolerances and end surface protrusions are only produced according to ordinary grade, can not be randomly paired and combined. The production of universal supporting contact ball bearings can be used back-to-back, face to face or series in any way. Universal matching bearings are provided in two ways: pre-load (pre-load) and pre-clearance (pre-clearance). In addition to the universal matching bearing, the single bearing in other matching bearings does not have interchangeability. This kind of bearing is mainly used in high speed, high precision and small axial load. Examples include aircraft engine spindles, machine tool spindles, and other high-speed precision mechanical spindles. It is also used in high frequency motors, gas turbines, oil pumps, air compressors, printing machines, etc. It is the most widely used bearing in the mechanical industry. Product categories Angular contact ball bearings can be roughly divided into four types: Single row angular contact ball bearing 7000C, 7000AC, 7000A, 7000B Group of supporting players contact ball bearings Face to face (DB), back to back (DF), tandem (DT), triple Double row angular contact ball bearing Double raceway inner ring and two single raceway outer ring combination Double raceway outer ring and two single raceway inner ring combination Double raceway outer ring and double raceway inner ring combination Four point contact ball bearing QJ0000, QJF0000 Single row angular contact ball bearing and group supporting contact ball bearing In order to improve the rigidity and bearing capacity of angular contact ball bearings, angular contact ball bearings of the same specifications are often arranged in the ways of double (DB, DF, DT), triple (TBT, TFT, TT), quadruple (QBC, QFC, QT) or even five (PBC, PFC, PT, PBT, PFT). For double angular contact ball bearings, there are three matching modes: back-to-back (DB), face-to-face (DF), and series (DT). Back-to-back supporting contact ball bearings are designed to withstand single or combined radial and axial loads and can withstand bi-directional axial loads. It can bear large overturning moment and has strong rigidity. Different preloads can be applied according to the operating conditions. Angular contact ball bearings arranged face to face bear less overturning torque and provide lower system stiffness. Its advantage lies in its
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Thrust Roller Bearings

Thrust Roller Bearings

Thrust roller bearing is used to bear the combined axial and radial load, but the radial load should not exceed 55% of the axial load. Compared with other thrust roller bearings, this kind of bearing has lower friction factor, higher speed and better centering performance. Product features Type 29000 bearing rollers for the asymmetric spherical roller, can reduce the roller and raceway in the work of the relative slide, and long, large diameter, the number of rollers, high load capacity, usually using oil lubrication, some low speed can be grease lubrication. In the design selection, should be preferred; Type 80000 thrust cylindrical roller bearing, type 90000 thrust tapered roller bearing and type AXK thrust needle roller bearing can bear unidirectional axial load, which is much larger than the axial load capacity of thrust ball bearing, and it is more rigid and occupies less axial space. Thrust cylindrical roller bearing and thrust tapered roller bearing are suitable for low speed occasions. The speed of thrust tapered roller bearing is slightly higher than that of thrust cylindrical roller bearing. Thrust cylindrical roller bearing is a separable bearing, which can only bear unidirectional axial load and slight impact, and can limit the axial displacement in one direction of the shaft (or housing), so it can be used for unidirectional axial positioning. But its bearing capacity is far greater than the thrust ball bearing. When the roller is rolling, the roller inevitably slides on the raceway of the ring due to the difference in linear velocity between the two ends of the roller. Therefore, the limit speed of this kind of bearing is lower than that of the thrust ball bearing, and it is usually only suitable for low-speed operation. Thrust cylindrical roller bearings of standard design are made of metal solid retainers made from vehicles. Retainers of other types or materials may also be used according to customer requirements. Thrust tapered roller bearing can only bear unidirectional axial load and can limit unidirectional axial displacement of the bearing, so it can be used for unidirectional axial positioning. Compared with thrust cylindrical roller bearing, the bearing capacity is large, the sliding is relatively small, but the limit speed is low. Thrust cylindrical roller bearings are mainly used in heavy-duty machine tools, high-power Marine gearboxes, oil RIGS, vertical motors and other machinery.
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Thrust Ball Bearings

Thrust Ball Bearings

Thrust ball bearing is composed of shaft ring, seat ring, steel ball and retainer. The ring that matches the shaft is called shaft ring, and the ring that matches the shell is called seat ring. The mounting surface of the seat ring is spherical with self-aligning performance, which can reduce the influence of mounting error. Thrust ball bearing is mainly used to bear axial load, which can transfer large axial load, but cannot bear radial load.The bearings are mainly used in automobile steering mechanism, machine tool spindle and so on. Product categories Thrust ball bearings can be roughly divided into two types: 1. One-way thrust ball bearing 2. Two-way thrust ball bearing One-way thrust ball bearing Includes a shaft ring, a seat ring and a ball - cage assembly.Bearings can be separated, shaft ring, seat ring, steel ball - retainer assembly can be installed separately.There are three types: 1. Thrust ball bearing with plane seat ring 2. Thrust ball bearing with self-aligning seat ring 3. Thrust ball bearing with self-aligning seat ring and self-aligning seat washer Unidirectional thrust ball bearings are mainly used to bear unidirectional axial load and can be used for unidirectional axial positioning. Bidirectional thrust ball bearing Includes a shaft ring, two seat rings, a center shaft ring and a ball - retainer assembly.Bearings can be separated, shaft ring, seat ring, steel ball - retainer assembly can be installed separately.There are three types: 1. Thrust ball bearing with plane seat ring 2. Thrust ball bearing with self-aligning seat ring 3. Thrust ball bearing with self-aligning seat ring and self-aligning seat washer Bidirectional thrust ball bearing bearing can bear bidirectional axial load and make bidirectional axial positioning. Size range The basic dimensions of thrust ball bearings are listed in the table. Inner diameter size range: 100mm ~ 800mm Outside diameter size range: 200mm ~ 1250mm Width size range: 50mm ~ 160mm The tolerance The standard thrust ball bearing has normal grade, P6, P5, P4 precision grade, which meets the national standard. cage The cage is generally made of two kinds of structure, stamping frame and solid frame, and other cages can be used if there are special requirements. When bearing outer diameter D≤250mm, steel plate (belt) shall be used to press the cage, and the rear code of the cage shall not be marked. When bearing outer diameter D > 250mm, brass solid retainer shall be used, the retainer designation shall not be marked, and the corresponding retainer designation of other marks shall be used.
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