China Thrust Spherical Roller Bearing 29326 E, 29426 E, 29328 E, 29428 E, 29230 E bearing driver

Product Description

Company Profile
UKL Bearing Manufacturing Co., Ltd., founded in 2002, is a group company integrating R & D, production, sales and after-sales service. The registered brand is UKL. With advanced production equipment and testing instruments, we have the ability to produce high-quality products to replace high-quality brands.

UKL Bearing Manufacturing Co., Ltd. as an export enterprise and has 3 production bases in HangZhou, ZheJiang and HangZhou, China. Our HangZhou factory produces spherical roller bearings, ZheJiang factory produces ball bearings and bearing units, and HangZhou factory mainly produces oversized ball bearings and roller bearings. In addition, our company completed the construction of ZheJiang second new type factory in November 2571, specializing in the production of precision angular contact ball bearings, robot bearings, and special bearings for screw rods. Our company has a comprehensive purchasing and trading network for other types of bearings, such as cylindrical roller bearings, self-aligning ball bearings, tapered roller bearings and spherical roller thrust bearings. With our strict quality management system and professional sales team, we will provide you with high-quality products, preferential prices and excellent after-sales service.

UKL bearings are widely used as supporting products in metallurgy, mining, petroleum, chemical industry, coal, cement, papermaking, wind power, heavy machinery, engineering machinery, port machinery, automation equipment, automobile and other industries. The production accuracy can reach P0, P6, P5, P4.
The company adheres to the business philosophy of “excellence, CZPT service, meticulous manufacturing and brand strategy”, and cooperates with customers at home and abroad on the principle of integrity and fairness. The company has successfully passed ISO9001 quality management system certification and ISO14001 environmental management system certification.

Workshop

 

Warehouse

Packing

 

Principaldimensions Basicloadratings Speedratings   Mass Bearing No.
      dynamic static Referencespeed Limitingspeed  
d[mm] D[mm] H[mm] C[kN] C0[kN] [r/min] [r/min] kg  
60 130 42 351 823.5 2520 4500 2.6 29412 E 
65 140 45 409.5 972 2340 4320 3.2 29413 E 
70 150 48 468 1125 2160 3870 3.9 29414 E 
75 160 51 540 1287 2160 3600 4.7 29415 E 
80 170 54 603 1467 1980 3420 5.6 29416 E 
85 150 39 342 954 2160 3600 2.75 29317 E 
85 180 58 661.5 1620 1800 3240 6.75 29417 E 
90 155 39 360 972 2160 3600 2.85 29318 E 
90 190 60 733.5 1800 1710 3060 7.75 29418 E 
100 170 42 418.5 1161 1980 3240 3.65 29320 E 
100 210 67 882 2250 1530 2700 10.5 29420 E 
110 190 48 549 1557 1710 2880 5.3 29322 E 
110 230 73 1062 2700 1440 2520 13.5 29422 E 
120 210 54 688.5 1908 1530 2520 7.35 29324 E 
120 250 78 1233 3105 1350 2340 17.5 29424 E 
130 225 58 778.5 2250 1440 2340 9 29326 E 
130 270 85 1404 3645 1170 2160 22 29426 E 
140 240 60 882 2565 1350 2340 10.5 29328 E 
140 280 85 1467 3870 1170 2160 23 29428 E 
150 215 39 367.2 1440 1620 2520 4.3 29230 E 
150 250 60 900 2565 1350 2160 11 29330 E 
150 300 90 1674 4590 1080 1980 28 29430 E 
160 270 67 1062 3105 1170 1980 14.5 29332 E 
160 320 95 1872 5040 990 1800 32 29432 E 
170 280 67 1080 3195 1170 1980 15 29334 E 
170 340 103 2124 5895 990 1710 44.5 29434 E 
180 250 42 445.5 1836 1440 2340 5.8 29236 E 
180 300 73 1287 3870 1080 1800 19.5 29336 E 
180 360 109 2340 6615 900 1620 52.5 29436 E 
190 320 78 1467 4275 990 1710 23.5 29338 E 
190 380 115 2565 7200 855 1530 60.5 29438 E 
200 280 48 590.4 2385 1260 1980 9.3 29240 E 
200 340 85 1674 4950 900 1530 28.4 29340 E 
200 400 122 2880 8100 765 1440 72 29440 E 
220 300 48 621 2700 1170 1980 10 29244 E 
220 360 85 1800 5670 900 1530 31.2 29344 E 
220 420 122 3015 8685 765 1350 75 29444 E 
240 340 60 719.1 3105 990 1620 16.5 29248
240 380 85 1836 5895 900 1440 35.5 29348 E 
240 440 122 3060 9180 765 1350 80 29448 E 
260 360 60 735.3 3285 990 1530 18.5 29252
260 420 95 2295 7470 765 1260 49 29352 E 
260 480 132 3645 11610 675 1170 105 29452 E 
280 380 60 776.7 3600 900 1530 19.5 29256
280 440 95 2295 7785 765 1260 53 29356 E 
280 520 145 4410 13770 603 1080 135 29456 E 
300 420 73 963 4320 810 1260 30.5 29260
300 480 109 2790 9540 675 1080 75 29360 E 
300 540 145 4500 14940 603 1080 140 29460 E 
320 440 73 999 4590 765 1260 33 29264
320 500 109 3015 10080 675 1080 78 29364 E 
320 580 155 5130 17100 540 990 175 29464 E 
340 460 73 1017 4860 765 1170 33.5 29268
340 540 122 2439 9900 540 990 105 29368
340 620 170 6030 20160 504 900 220 29468 E 
360 500 85 1314 6120 675 1080 52 29272
360 560 122 2484 10440 540 990 110 29372
360 640 170 5580 19080 504 855 230 29472 EM 
380 520 85 1422 6885 630 990 53 29276
380 600 132 3006 12600 477 900 140 29376
380 670 175 6120 21600 477 810 260 29476 EM 
400 540 85 1449 7200 630 990 55.5 29280
400 620 132 3105 13140 477 855 150 29380
400 710 185 6885 23850 432 765 310 29480 E 
400 710 185 6885 23850 432 765 310 29480 EM 
420 580 95 1791 8820 567 900 75.5 29284
420 650 140 3366 14400 450 810 170 29384
420 730 185 7571 24750 432 765 325 29484 EM 
440 600 95 1863 9360 567 900 78 29288
440 680 145 4680 17370 477 765 180 29388 EM 
440 780 206 8100 28800 387 675 410 29488 EM 
460 620 95 1863 9540 540 855 81 29292
460 710 150 3879 17100 405 720 215 29392
460 800 206 8370 30150 387 675 425 29492 EM 
480 650 103 2115 10620 504 810 98 29296
480 850 224 8595 35100 306 603 550 29496 EM 
500 670 103 2151 11250 504 810 100 292/500 
500 750 150 4041 18360 387 720 235 293/500 
500 870 224 8433 36000 306 603 560 294/500 EM 
530 710 109 2799 13770 477 765 115 292/530 EM 
530 800 160 5283 23850 360 675 265 293/530 EM 
530 920 236 9450 39600 288 567 650 294/530 EM 
560 750 115 2691 14400 432 720 140 292/560 
560 980 250 10800 45900 270 504 810 294/560 EM 
600 800 122 3366 16740 405 630 170 292/600 EM 
600 1030 258 11790 50400 252 477 845 294/600 EM 
630 850 132 4293 21240 360 603 210 292/630 EM 
630 950 190 7605 34200 288 540 485 293/630 EM 
630 1090 280 12960 55800 234 450 1040 294/630 EM 
670 1150 290 13860 61200 216 405 1210 294/670 EM 
710 1060 212 8955 40950 252 450 610 293/710 EM 
710 1220 308 15840 68850 198 387 1500 294/710 EF 
750 1280 315 16830 76500 180 360 1650 294/750 EF 
800 1060 155 5904 31050 288 477 380 292/800 EM 
800 1180 230 10170 49500 216 405 810 293/800 EM 
800 1360 335 18180 83700 171 324 2571 294/800 EF 
850 1440 354 21510 97200 153 306 2390 294/850 EF 
900 1520 372 24030 109800 144 270 2650 294/900 EF 
950 1600 390 25380 118800 126 252 3065 294/950 EF 
1000 1670 402 27990 126000 117 234 3383 294/1000 EF 
1060 1770 426 30060 140400 108 216 4280 294/1060 EF 

Please do not hesitate to contact us for further informations!!!
 

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Medium and Large(120-190mm)
Material: Bearing Steel
Spherical: Aligning Bearings
Load Direction: Radial Bearing

###

Samples:
US$ 3.5/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:
Available

|

Customized Request

###

Principaldimensions Basicloadratings Speedratings   Mass Bearing No.
      dynamic static Referencespeed Limitingspeed  
d[mm] D[mm] H[mm] C[kN] C0[kN] [r/min] [r/min] kg  
60 130 42 351 823.5 2520 4500 2.6 29412 E 
65 140 45 409.5 972 2340 4320 3.2 29413 E 
70 150 48 468 1125 2160 3870 3.9 29414 E 
75 160 51 540 1287 2160 3600 4.7 29415 E 
80 170 54 603 1467 1980 3420 5.6 29416 E 
85 150 39 342 954 2160 3600 2.75 29317 E 
85 180 58 661.5 1620 1800 3240 6.75 29417 E 
90 155 39 360 972 2160 3600 2.85 29318 E 
90 190 60 733.5 1800 1710 3060 7.75 29418 E 
100 170 42 418.5 1161 1980 3240 3.65 29320 E 
100 210 67 882 2250 1530 2700 10.5 29420 E 
110 190 48 549 1557 1710 2880 5.3 29322 E 
110 230 73 1062 2700 1440 2520 13.5 29422 E 
120 210 54 688.5 1908 1530 2520 7.35 29324 E 
120 250 78 1233 3105 1350 2340 17.5 29424 E 
130 225 58 778.5 2250 1440 2340 9 29326 E 
130 270 85 1404 3645 1170 2160 22 29426 E 
140 240 60 882 2565 1350 2340 10.5 29328 E 
140 280 85 1467 3870 1170 2160 23 29428 E 
150 215 39 367.2 1440 1620 2520 4.3 29230 E 
150 250 60 900 2565 1350 2160 11 29330 E 
150 300 90 1674 4590 1080 1980 28 29430 E 
160 270 67 1062 3105 1170 1980 14.5 29332 E 
160 320 95 1872 5040 990 1800 32 29432 E 
170 280 67 1080 3195 1170 1980 15 29334 E 
170 340 103 2124 5895 990 1710 44.5 29434 E 
180 250 42 445.5 1836 1440 2340 5.8 29236 E 
180 300 73 1287 3870 1080 1800 19.5 29336 E 
180 360 109 2340 6615 900 1620 52.5 29436 E 
190 320 78 1467 4275 990 1710 23.5 29338 E 
190 380 115 2565 7200 855 1530 60.5 29438 E 
200 280 48 590.4 2385 1260 1980 9.3 29240 E 
200 340 85 1674 4950 900 1530 28.4 29340 E 
200 400 122 2880 8100 765 1440 72 29440 E 
220 300 48 621 2700 1170 1980 10 29244 E 
220 360 85 1800 5670 900 1530 31.2 29344 E 
220 420 122 3015 8685 765 1350 75 29444 E 
240 340 60 719.1 3105 990 1620 16.5 29248
240 380 85 1836 5895 900 1440 35.5 29348 E 
240 440 122 3060 9180 765 1350 80 29448 E 
260 360 60 735.3 3285 990 1530 18.5 29252
260 420 95 2295 7470 765 1260 49 29352 E 
260 480 132 3645 11610 675 1170 105 29452 E 
280 380 60 776.7 3600 900 1530 19.5 29256
280 440 95 2295 7785 765 1260 53 29356 E 
280 520 145 4410 13770 603 1080 135 29456 E 
300 420 73 963 4320 810 1260 30.5 29260
300 480 109 2790 9540 675 1080 75 29360 E 
300 540 145 4500 14940 603 1080 140 29460 E 
320 440 73 999 4590 765 1260 33 29264
320 500 109 3015 10080 675 1080 78 29364 E 
320 580 155 5130 17100 540 990 175 29464 E 
340 460 73 1017 4860 765 1170 33.5 29268
340 540 122 2439 9900 540 990 105 29368
340 620 170 6030 20160 504 900 220 29468 E 
360 500 85 1314 6120 675 1080 52 29272
360 560 122 2484 10440 540 990 110 29372
360 640 170 5580 19080 504 855 230 29472 EM 
380 520 85 1422 6885 630 990 53 29276
380 600 132 3006 12600 477 900 140 29376
380 670 175 6120 21600 477 810 260 29476 EM 
400 540 85 1449 7200 630 990 55.5 29280
400 620 132 3105 13140 477 855 150 29380
400 710 185 6885 23850 432 765 310 29480 E 
400 710 185 6885 23850 432 765 310 29480 EM 
420 580 95 1791 8820 567 900 75.5 29284
420 650 140 3366 14400 450 810 170 29384
420 730 185 7020 24750 432 765 325 29484 EM 
440 600 95 1863 9360 567 900 78 29288
440 680 145 4680 17370 477 765 180 29388 EM 
440 780 206 8100 28800 387 675 410 29488 EM 
460 620 95 1863 9540 540 855 81 29292
460 710 150 3879 17100 405 720 215 29392
460 800 206 8370 30150 387 675 425 29492 EM 
480 650 103 2115 10620 504 810 98 29296
480 850 224 8595 35100 306 603 550 29496 EM 
500 670 103 2151 11250 504 810 100 292/500 
500 750 150 4041 18360 387 720 235 293/500 
500 870 224 8433 36000 306 603 560 294/500 EM 
530 710 109 2799 13770 477 765 115 292/530 EM 
530 800 160 5283 23850 360 675 265 293/530 EM 
530 920 236 9450 39600 288 567 650 294/530 EM 
560 750 115 2691 14400 432 720 140 292/560 
560 980 250 10800 45900 270 504 810 294/560 EM 
600 800 122 3366 16740 405 630 170 292/600 EM 
600 1030 258 11790 50400 252 477 845 294/600 EM 
630 850 132 4293 21240 360 603 210 292/630 EM 
630 950 190 7605 34200 288 540 485 293/630 EM 
630 1090 280 12960 55800 234 450 1040 294/630 EM 
670 1150 290 13860 61200 216 405 1210 294/670 EM 
710 1060 212 8955 40950 252 450 610 293/710 EM 
710 1220 308 15840 68850 198 387 1500 294/710 EF 
750 1280 315 16830 76500 180 360 1650 294/750 EF 
800 1060 155 5904 31050 288 477 380 292/800 EM 
800 1180 230 10170 49500 216 405 810 293/800 EM 
800 1360 335 18180 83700 171 324 2025 294/800 EF 
850 1440 354 21510 97200 153 306 2390 294/850 EF 
900 1520 372 24030 109800 144 270 2650 294/900 EF 
950 1600 390 25380 118800 126 252 3065 294/950 EF 
1000 1670 402 27990 126000 117 234 3383 294/1000 EF 
1060 1770 426 30060 140400 108 216 4280 294/1060 EF 
Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Medium and Large(120-190mm)
Material: Bearing Steel
Spherical: Aligning Bearings
Load Direction: Radial Bearing

###

Samples:
US$ 3.5/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:
Available

|

Customized Request

###

Principaldimensions Basicloadratings Speedratings   Mass Bearing No.
      dynamic static Referencespeed Limitingspeed  
d[mm] D[mm] H[mm] C[kN] C0[kN] [r/min] [r/min] kg  
60 130 42 351 823.5 2520 4500 2.6 29412 E 
65 140 45 409.5 972 2340 4320 3.2 29413 E 
70 150 48 468 1125 2160 3870 3.9 29414 E 
75 160 51 540 1287 2160 3600 4.7 29415 E 
80 170 54 603 1467 1980 3420 5.6 29416 E 
85 150 39 342 954 2160 3600 2.75 29317 E 
85 180 58 661.5 1620 1800 3240 6.75 29417 E 
90 155 39 360 972 2160 3600 2.85 29318 E 
90 190 60 733.5 1800 1710 3060 7.75 29418 E 
100 170 42 418.5 1161 1980 3240 3.65 29320 E 
100 210 67 882 2250 1530 2700 10.5 29420 E 
110 190 48 549 1557 1710 2880 5.3 29322 E 
110 230 73 1062 2700 1440 2520 13.5 29422 E 
120 210 54 688.5 1908 1530 2520 7.35 29324 E 
120 250 78 1233 3105 1350 2340 17.5 29424 E 
130 225 58 778.5 2250 1440 2340 9 29326 E 
130 270 85 1404 3645 1170 2160 22 29426 E 
140 240 60 882 2565 1350 2340 10.5 29328 E 
140 280 85 1467 3870 1170 2160 23 29428 E 
150 215 39 367.2 1440 1620 2520 4.3 29230 E 
150 250 60 900 2565 1350 2160 11 29330 E 
150 300 90 1674 4590 1080 1980 28 29430 E 
160 270 67 1062 3105 1170 1980 14.5 29332 E 
160 320 95 1872 5040 990 1800 32 29432 E 
170 280 67 1080 3195 1170 1980 15 29334 E 
170 340 103 2124 5895 990 1710 44.5 29434 E 
180 250 42 445.5 1836 1440 2340 5.8 29236 E 
180 300 73 1287 3870 1080 1800 19.5 29336 E 
180 360 109 2340 6615 900 1620 52.5 29436 E 
190 320 78 1467 4275 990 1710 23.5 29338 E 
190 380 115 2565 7200 855 1530 60.5 29438 E 
200 280 48 590.4 2385 1260 1980 9.3 29240 E 
200 340 85 1674 4950 900 1530 28.4 29340 E 
200 400 122 2880 8100 765 1440 72 29440 E 
220 300 48 621 2700 1170 1980 10 29244 E 
220 360 85 1800 5670 900 1530 31.2 29344 E 
220 420 122 3015 8685 765 1350 75 29444 E 
240 340 60 719.1 3105 990 1620 16.5 29248
240 380 85 1836 5895 900 1440 35.5 29348 E 
240 440 122 3060 9180 765 1350 80 29448 E 
260 360 60 735.3 3285 990 1530 18.5 29252
260 420 95 2295 7470 765 1260 49 29352 E 
260 480 132 3645 11610 675 1170 105 29452 E 
280 380 60 776.7 3600 900 1530 19.5 29256
280 440 95 2295 7785 765 1260 53 29356 E 
280 520 145 4410 13770 603 1080 135 29456 E 
300 420 73 963 4320 810 1260 30.5 29260
300 480 109 2790 9540 675 1080 75 29360 E 
300 540 145 4500 14940 603 1080 140 29460 E 
320 440 73 999 4590 765 1260 33 29264
320 500 109 3015 10080 675 1080 78 29364 E 
320 580 155 5130 17100 540 990 175 29464 E 
340 460 73 1017 4860 765 1170 33.5 29268
340 540 122 2439 9900 540 990 105 29368
340 620 170 6030 20160 504 900 220 29468 E 
360 500 85 1314 6120 675 1080 52 29272
360 560 122 2484 10440 540 990 110 29372
360 640 170 5580 19080 504 855 230 29472 EM 
380 520 85 1422 6885 630 990 53 29276
380 600 132 3006 12600 477 900 140 29376
380 670 175 6120 21600 477 810 260 29476 EM 
400 540 85 1449 7200 630 990 55.5 29280
400 620 132 3105 13140 477 855 150 29380
400 710 185 6885 23850 432 765 310 29480 E 
400 710 185 6885 23850 432 765 310 29480 EM 
420 580 95 1791 8820 567 900 75.5 29284
420 650 140 3366 14400 450 810 170 29384
420 730 185 7020 24750 432 765 325 29484 EM 
440 600 95 1863 9360 567 900 78 29288
440 680 145 4680 17370 477 765 180 29388 EM 
440 780 206 8100 28800 387 675 410 29488 EM 
460 620 95 1863 9540 540 855 81 29292
460 710 150 3879 17100 405 720 215 29392
460 800 206 8370 30150 387 675 425 29492 EM 
480 650 103 2115 10620 504 810 98 29296
480 850 224 8595 35100 306 603 550 29496 EM 
500 670 103 2151 11250 504 810 100 292/500 
500 750 150 4041 18360 387 720 235 293/500 
500 870 224 8433 36000 306 603 560 294/500 EM 
530 710 109 2799 13770 477 765 115 292/530 EM 
530 800 160 5283 23850 360 675 265 293/530 EM 
530 920 236 9450 39600 288 567 650 294/530 EM 
560 750 115 2691 14400 432 720 140 292/560 
560 980 250 10800 45900 270 504 810 294/560 EM 
600 800 122 3366 16740 405 630 170 292/600 EM 
600 1030 258 11790 50400 252 477 845 294/600 EM 
630 850 132 4293 21240 360 603 210 292/630 EM 
630 950 190 7605 34200 288 540 485 293/630 EM 
630 1090 280 12960 55800 234 450 1040 294/630 EM 
670 1150 290 13860 61200 216 405 1210 294/670 EM 
710 1060 212 8955 40950 252 450 610 293/710 EM 
710 1220 308 15840 68850 198 387 1500 294/710 EF 
750 1280 315 16830 76500 180 360 1650 294/750 EF 
800 1060 155 5904 31050 288 477 380 292/800 EM 
800 1180 230 10170 49500 216 405 810 293/800 EM 
800 1360 335 18180 83700 171 324 2025 294/800 EF 
850 1440 354 21510 97200 153 306 2390 294/850 EF 
900 1520 372 24030 109800 144 270 2650 294/900 EF 
950 1600 390 25380 118800 126 252 3065 294/950 EF 
1000 1670 402 27990 126000 117 234 3383 294/1000 EF 
1060 1770 426 30060 140400 108 216 4280 294/1060 EF 

How to Replace a Bearing

If you want to select a bearing for a specific application, you should know a few basics. This article will give you an overview of ball, angular contact, and sliding-contact bearings. You can choose a bearing according to the application based on the characteristics of its material and preload. If you are not sure how to choose a bearing, try experimenting with it. The next step is to understand the Z-axis, which is the axes along which the bearing moves.

Z axis

When it comes to replacing your Z axis bearing, there are several things you must know. First, you need to make sure that the bearings are seated correctly. Then, you should check the tension and rotation of each one. To ensure that both bearings are equally tensioned, you should flex the Core to the desired angle. This will keep the Z axis perpendicular to the work surface. To do this, first remove the Z axis bearing from its housing and insert it into the Z axis motor plate. Next, insert the flanged bearing into the Z axis motor plate and secure it with two M5x8mm button head cap screws.
Make sure that the bearing plate and the Z Coupler part are flush and have equal spacing. The spacing between the two parts is important, as too much spacing will cause the leadscrew to become tight. The screws should be very loose, with the exception of the ones that engage the nylocks. After installing the bearing, the next step is to start the Z axis. Once this is done, you’ll be able to move it around with a stepper.

Angular contact

bearing
Ball bearings are made with angular contacts that result in an angle between the bearing’s races. While the axial load moves in one direction through the bearing, the radial load follows a curved path, tending to separate the races axially. In order to minimize this frictional effect, angular contact bearings are designed with the same contact angle on the inner and outer races. The contact angle must be chosen to match the relative proportions of the axial and radial loads. Generally, a larger contact angle supports a higher axial load, while reducing radial load.
Ball bearings are the most common type of angular contact bearings. Angular contact ball bearings are used in many applications, but their primary purpose is in the spindle of a machine tool. These bearings are suitable for high-speed, precision rotation. Their radial load capacity is proportional to the angular contact angle, so larger contact angles tend to enlarge with speed. Angular contact ball bearings are available in single and double-row configurations.
Angular contact ball bearings are a great choice for applications that involve axial loads and complex shapes. These bearings have raceways on the inner and outer rings and mutual displacement along the axial axis. Their axial load bearing capacity increases as the contact Angle a rises. Angular contact ball bearings can withstand loads up to five times their initial weight! For those who are new to bearings, there are many resources online dedicated to the subject.
Despite their complexity, angular contact ball bearings are highly versatile and can be used in a wide range of applications. Their angular contact enables them to withstand moderate radial and thrust loads. Unlike some other bearings, angular contact ball bearings can be positioned in tandem to reduce friction. They also feature a preload mechanism that removes excess play while the bearing is in use.
Angular contact ball bearings are made with different lubricants and cage materials. Standard cages for angular contact ball bearings correspond to Table 1. Some are machined synthetic resins while others are molded polyamide. These cage materials are used to further enhance the bearing’s axial load capacity. Further, angular contact ball bearings can withstand high speeds and radial loads. Compared to radial contact ball bearings, angular contact ball bearings offer the greatest flexibility.

Ball bearings

bearing
Ball bearings are circular structures with two separate rings. The smaller ring is mounted on a shaft. The inner ring has a groove on the outer diameter that acts as a path for the balls. Both the inner and outer ring surfaces are finished with very high precision and tolerance. The outer ring is the circular structure with the rolling elements. These elements can take many forms. The inner and outer races are generally made of steel or ceramic.
Silicon nitride ceramic balls have good corrosion resistance and lightweight, but are more expensive than aluminum oxide balls. They also exhibit an insulating effect and are self-lubricating. Silicon nitride is also suitable for high-temperature environments. However, this type of material has the disadvantage of wearing out rapidly and is prone to cracking and shattering, as is the case with bearing steel and glass. It’s also less resistant to heat than aluminum oxide, so it’s best to buy aluminum nitride or ceramic ball bearings for applications that are subjected to extremely high temperatures.
Another type of ball bearings is the thrust bearing. It has a special design that accommodates forces in both axial and radial directions. It is also called a bidirectional bearing because its races are side-by-side. Axial ball bearings use a side-by-side design, and axial balls are used when the loads are transmitted through the wheel. However, they have poor axial support and are prone to separating during heavy radial loads.
The basic idea behind ball bearings is to reduce friction. By reducing friction, you’ll be able to transfer more energy, have less erosion, and improve the life of your machine. With today’s advances in technology, ball bearings can perform better than ever before. From iron to steel to plastics, the materials used in bearings have improved dramatically. Bearings may also incorporate an electromagnetic field. So, it’s best to select the right one for your machine.
The life expectancy of ball bearings depends on many factors, including the operating speed, lubrication, and temperature. A single million-rpm ball bearing can handle between one and five million rotations. As long as its surface contact area is as small as possible, it’s likely to be serviceable for at least one million rotations. However, the average lifespan of ball bearings depends on the application and operating conditions. Fortunately, most bearings can handle a million or more rotations before they start showing signs of fatigue.

Sliding-contact bearings

bearing
The basic principle behind sliding-contact bearings is that two surfaces move in contact with one another. This type of bearing works best in situations where the surfaces are made of dissimilar materials. For instance, a steel shaft shouldn’t run in a bronze-lined bore, or vice versa. Instead, one element should be harder than the other, since wear would concentrate in that area. In addition, abrasive particles tend to force themselves into the softer surface, causing a groove to wear in that part.
Sliding-contact bearings have low coefficients of friction and are commonly used in low-speed applications. Unlike ball and roller bearings, sliding contact bearings have to be lubricated on both sides of the contacting surfaces to minimize wear and tear. Sliding-contact bearings generally are made of ceramics, brass, and polymers. Because of their lower friction, they are less accurate than rolling-element bearings.
Sliding-contact bearings are also known as plain or sleeve bearings. They have a sliding motion between their two surfaces, which is reduced by lubrication. This type of bearing is often used in rotary applications and as guide mechanisms. In addition to providing sliding action, sliding-contact bearings are self-lubricating and have high load-carrying capacities. They are typically available in two different types: plain bearings and thrust bearings.
Sliding-contact linear bearing systems consist of a moving structure (called the carriage or slide) and the surfaces on which the two elements slide. The surfaces on which the bearing and journal move are called rails, ways, or guides. A bore hole is a complex geometry, and a minimum oil film thickness h0 is usually used at the line of centers. It is possible to have a sliding-contact bearing in a pillow block.
Because these bearings are porous, they can absorb 15 to 30% of the lubrication oil. This material is commonly used in automobile and machine tools. Many non-metallic materials are used as bearings. One example is rubber, which offers excellent shock absorbency and embeddability. While rubber has poor strength and thermal conductivity, it is commonly used in deep-well pumps and centrifugal pumps. This material has high impact strength, but is not as rigid as steel.

China Thrust Spherical Roller Bearing 29326 E, 29426 E, 29328 E, 29428 E, 29230 E bearing driverChina Thrust Spherical Roller Bearing 29326 E, 29426 E, 29328 E, 29428 E, 29230 E bearing driver
editor by czh 2022-11-28