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No. 61, BinHe Road, LuoLong Zone, LuoYang City, P.R. of China

+86 (0379) 639 68877

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8:00 — 18:00

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info@qibr.com

products

Self-aligning ball bearing

Customizable


  • Standards:GOST/ASTM/GB
  • Inner radius:10mm-750mm
  • Outer radius:30mm-920mm
  • Weight:0.2kg-300kg
  • Structures:outer ring, inner ring and cage
  • Applications:precision instrument, low-noise motor, vehicle, motorcycle, agricultural machinery, industrial processing machinery and transmission device.

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  • QIBR Model Selection
  • QIBR Customized Bearing
  • QIBR Process Control
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Bearing Models
New Code Old Code Dimension, mm( d*D*B) Cage
1200ATN 1200 10*30*9 nylon
1201ATN 1201 12*32*10 nylon
1202ATN 1202 15*35*11 nylon
1203ATN 1203 17*40*12 nylon
1204ATN 1204 20*47*14 nylon
1204AKTN 111204 20*47*14 nylon
1205ATN 1205 25*52*15 nylon
1205ATN/C3 3G1205 25*52*15 nylon
1205AKTN 111205 25*52*15 nylon
1206ATN 1206 30*62*16 nylon
1206AKTN 111206 30*62*16 nylon
1207ATN 1207 35*72*17 nylon
1207AKTN 111207 35*72*17 nylon
1208ATN 1208 40*80*18 nylon
1208AKTN 111208 40*80*18 nylon
1209ATN 1209 45*85*19 nylon
1209AKTN 111209 45*85*19 nylon
1210ATN 1210 50*90*20 nylon
1210AKTN 111210 50*90*20 nylon
1211ATN 1211 55*100*21 nylon
1211AKTN 111211 55*100*21 nylon
1212ATN 1212 60*110*22 nylon
1212AKTN 111212 60*110*22 nylon
1213ATN 1213 65*120*23 nylon
1213AKTN 111213 65*120*23 nylon
1214ATN 1214 70*125*24 nylon
1214AKTN 111214 70*125*24 nylon
1215ATN 1215 75*130*25 nylon
1215AKTN 111215 75*130*25 nylon
1216ATN 1216 80*140*26 nylon
1216AKTN 111216 80*140*26 nylon
1217ATN 1217 85*150*28 nylon
1217AKTN 111217 85*150*28 nylon
1218ATN 1218 90*160*30 nylon
1218AKTN 111218 90*160*30 nylon
1300ATN 1300 10*35*11 nylon
1301ATN 1301 12*37*12 nylon
1302ATN 1302 15*42*13 nylon
1303ATN 1303 17*47*14 nylon
1303ATN/C3 3G1303 17*47*14 nylon
1304ATN 1304 20*52*15 nylon
1304AKTN 111304 20*52*15 nylon
1305ATN 1305 25*62*17 nylon
1305AKTN 111305 25*62*17 nylon
1306ATN 1306 30*72*19 nylon
1306AKTN 111306 30*72*19 nylon
1307ATN 1307 35*80*21 nylon
1307AKTN 111307 35*80*21 nylon
1308ATN 1308 40*90*23 nylon
1308AKTN 111308 40*90*23 nylon
1309ATN 1309 45*100*25 nylon
1309AKTN 111309 45*100*25 nylon
1310ATN 1310 50*110*27 nylon
1310AKTN 111310 50*110*27 nylon
1311ATN 1311 55*120*29 nylon
1311AKTN 111311 55*120*29 nylon
1312ATN 1312 60*130*31 nylon
1312AKTN 111312 60*31*31 nylon
1313ATN 1313 65*140*33 nylon
1313AKTN 111313 65*140*33 nylon
1314ATN 1314 70*150*35 nylon
1314AKTN 111314 70*150*35 nylon
1315ATN 1315 75*160*37 nylon
1315AKTN 111315 75*160*37 nylon
1316ATN 1316 80*170*39 nylon
1316AKTN 111316 80*170*39 nylon
1317ATN 1317 85*180*41 nylon
1317AKTN 111317 85*180*41 nylon
1318ATN 1318 90*190*43 nylon
1318AKTN 111318 90*190*43 nylon
2200ATN 1500 10*30*14 nylon
2200A-2RZTN   10*30*14 nylon
2201ATN 1501 12*32*14 nylon
2201A-2RZTN   12*32*14 nylon
2202ATN 1502 15*35*14 nylon
2202A-2RZTN   15*35*14 nylon
2203ATN 1503 17*40*16 nylon
2203A-2RZTN   17*40*16 nylon
2204ATN 1504 20*47*18 nylon
2204A-2RZTN 111504 20*47*18 nylon
2204AKTN   20*47*18 nylon
2204AK-2RZTN   20*47*18 nylon
2205ATN 1505 25*52*18 nylon
2205A-2RZTN 111505 25*52*18 nylon
2205AKTN   25*52*18 nylon
2205AK-2RZTN   25*52*18 nylon
2206ATN 1506 30*62*20 nylon
2206A-2RZTN 111506 30*62*20 nylon
2206AKTN   30*62*20 nylon
2206AK-2RZTN   30*62*20 nylon
2207ATN 1507 35*72*23 nylon
2207A-2RZTN 111507 35*72*23 nylon
2207AKTN   35*72*23 nylon
2207AK-2RZTN   35*72*23 nylon
2208ATN 1508 40*80*23 nylon
2208A-2RZTN 111508 40*80*23 nylon
2208AKTN   40*80*23 nylon
2208AK-2RZTN   40*80*23 nylon
2209ATN 1509 45*85*23 nylon
2209A-2RZTN 111509 45*85*23 nylon
2209AKTN   45*85*23 nylon
2209AK-2RZTN   45*85*23 nylon
2210ATN 1510 50*90*23 nylon
2210A-2RZTN 111510 50*90*23 nylon
2210AKTN   50*90*23 nylon
2210AK-2RZTN   50*90*23 nylon
2211ATN 1511 55*100*25 nylon
2211A-2RZTN 111511 55*100*25 nylon
2211AKTN   55*100*25 nylon
2211AK-2RZTN   55*100*25 nylon
2212ATN 1512 60*110*28 nylon
2212A-2RZTN 111512 60*110*28 nylon
2212AKTN   60*110*28 nylon
2212AK-2RZTN   60*110*28 nylon
2213ATN 1513 65*120*31 nylon
2213A-2RZTN 111513 65*120*31 nylon
2213AKTN   65*120*31 nylon
2213AK-2RZTN   65*120*31 nylon
2214ATN 1514 70*125*31 nylon
2214AKTN 111514 70*125*31 nylon
2215ATN 1515 75*130*31 nylon
2215AKTN 111515 75*130*31 nylon
2216ATN 1516 80*140*33 nylon
2216AKTN 111516 80*140*33 nylon
2217ATN 1517 85*150*36 nylon
2217AKTN 111517 85*150*36 nylon
2218ATN 1518 90*160*40 nylon
2218AKTN 111518 90*160*40 nylon
2303ATN 1603 17*47*19 nylon
2303A-2RZTN   17*47*19 nylon
2304ATN 1604 20*52*21 nylon
2304A-2RZTN 111604 20*52*21 nylon
2304AKTN   20*52*21 nylon
2304AK-2RZTN   20*52*21 nylon
2305ATN 1605 25*62*24 nylon
2305A-2RZTN 111605 25*62*24 nylon
2305AKTN   25*62*24 nylon
2305AK-2RZTN   25*62*24 nylon
2306ATN 1606 30*72*27 nylon
2306A-2RZTN 111606 30*72*27 nylon
2306AKTN   30*72*27 nylon
2306AK-2RZTN   30*72*27 nylon
2307ATN 1607 35*80*31 nylon
2307A-2RZTN 111607 35*80*31 nylon
2307AKTN   35*80*31 nylon
2307AK-2RZTN   35*80*31 nylon
2308ATN 1608 40*90*33 nylon
2308A-2RZTN 111608 40*90*33 nylon
2308AKTN   40*90*33 nylon
2308AK-2RZTN   40*90*33 nylon
2309ATN 1609 45*100*36 nylon
2309A-2RZTN 111609 45*100*36 nylon
2309AKTN   45*100*36 nylon
2309AK-2RZTN   45*100*36 nylon
2310ATN 1610 50*110*40 nylon
2310A-2RZTN 111610 50*110*40 nylon
2310AKTN   50*110*40 nylon
2310AK-2RZTN   50*110*40 nylon
2311ATN 1611 55*120*46 nylon
2311AKTN 111611 55*120*46 nylon
2312ATN 1612 60*130*46 nylon
2312AKTN 111612 60*130*46 nylon
2313ATN 1613 65*140*48 nylon
2313AKTN 111613 65*140*48 nylon
2314ATN 1614 70*150*51 nylon
2314AKTN 111614 70*150*51 nylon
2315ATN 1615 75*160*55 nylon
2315AKTN 111615 75*160*55 nylon
2316ATN 1616 80*170*58 nylon
2316AKTN 111616 80*170*58 nylon
2317ATN 1617 85*180*60 nylon
2317AKTN 111617 85*180*60 nylon
       
         

QIBR self-aligning ball bearing product structure outer ring raceway is spherical, inner ring has double raceway, bearing plays the role of self-aligning, that is, when the bearing bends by load or the inner ring axial line tilts relative to that of outer ring caused by installation error, the bearing can still operate normally. It is also possible to deal with the shaft flexure, but generally the angle does not exceed 3 degree. It is designed mainly to bear radical load, and can also bear certain axial load while taking radial load, but it cannot bear axial load only.

Common structure of self-aligning ball bearing: outer ring, inner ring and retainer. Under some circumstances, it can be used as closed self-aligning ball bearing, that is, making it come with bearing shield, sealing ring and lubricating grease. Its working temperature is between 30℃ and 120℃.

self-aligning ball bearing illustration

Tolerance of QIBR self-aligning ball bearing conforms to rules of China State Standard GB/307.1 Rolling Bearings-Radial Bearing-Tolerances, and clearance confirming to Rolling Bearing-radical clearance, with dimensions meeting requirements of GB/T273.3 Rolling bearings-Boundary dimensions, general plan, and GB/T281 Rolling bearings—Self-aligning ball bearings—Boundary dimensions.

Non-standard self-aligning ball bearings, QIBR self-aligning ball bearing inner hole can be made as self-aligning ball bearing with conical inner hole, generally taper is 1:12 or 1:30. The commonly used self-aligning ball is open self-aligning ball bearing. The QIBR self-aligning ball bearing can also be made to be a self-aligning ball bearing with a sealing ring, we can also design and manufacture a self-aligning ball bearing that meets the customer's individual requirements. Non-standard self-aligning ball bearings are shown below

Self-aligning ball bearing with tapper at inner hole

Self-aligning ball bearing with seal

Raw material

QIBR precision anti-friction bearings are usually made of chrome steel, which consist of about 1% carbon, 1.5% chromium and a small amount of manganese, silicon, and sometimes a small amount of molybdenum.

QIBR offers you a wide range of material options such as GCr15, 100Cr6, SKF 3, SUJ-2 etc. At the same time, some models of QIBR are available in stainless steel.

The rolling element can be ceramic ball (silicon nitride). Due to ceramic is kind of special material, the ceramic ball bearing has advantages of higher rotation speed, good self-lubricating property, and the rigidity is 15%-20% higher than the general bearing, and better high temperature resistance.

Bearing cage

The high-quality cage used by QIBR bearings ensure that the balls are evenly distributed in the bearing rings and can be rotated properly.

The cage has stamped steel wave type, stamped steel rivet type, nylon or phenolic plastic.

QIBR offers a wide range of advice and options depending on the operating conditions.

Seals

In order to prevent contaminants from entering the inside of the bearing, QIBR uses a metal dust cover or a rubber seal with a metal skeleton.

QIBR are able to choose two types as a combination seals according to your working conditions, or choose different kinds of seal materials, such as nitrile rubber BUNA, acrylic rubber HYCAR, fluoro rubber VITON.

Type of lubrication

Lubricating oil is the basic lubricant for ball bearings. Previously most of the lubricating oil was extracted from petroleum. Synthetic oils are now acceptable due to improved performance, such as two lipid synthetic oils, silicones and fluorocarbon synthetic oils. In general, lipid synthetic oils have better low temperature properties, lower volatility, and better temperature characteristics and viscosity compared than petroleum refined oils. Essentially all lubricants contain additives to inhibit chemical changes, prevent metal corrosion, and improve physical properties (antifoam, etc.).

The silicone and fluorocarbon synthetic oils that adopted by QIBR have lower volatility and wider temperature/viscosity characteristics.

Radial clearance

The radial clearance is the gap between the steel ball and the ring. QIBR is precisely tailored to customer's temperature conditions, interference fit, misalignment of the bearing's axis, required noise level and speed.

Service life and the rated load

The bearing life is the number of bearing rotations before the fatigue occurs on the ring or any rolling element (or the rotation time at a constant speed). However, the same set of bearings will not necessarily have the same life under the same conditions. In this case, the rated life is the number of rotations that 90% of the bearings in this group can reach or exceed before bearing weariness (or the rotation time at a constant speed). The service life of QIBR series bearings are 10%-20% longer than other bearings of the same model, through strict production process, high standard material selection, precision control.

The adopted steel balls

The steel balls in the deep groove ball bearings used by QIBR are mainly designed according to the load requirements of the bearing. The bearing ball sizes of different models are different, generally the value of rib coefficient Kd (ditch depth) range 0.35-0.40. , related to bearing diameter, such as 6000 series Kd = 0.35, 6400 series Kd = 0.40; 6200 and 6300 series, d ≤ 25mm take Kd = 0.35, d > 25mm take Kd = 0.40. Groove depth = Kd × steel ball diameter.


Bearing steel ball material comparison table
GB (China) Gcr15 GCr15SiMn
ASTM/AISI (USA) 52100 *
ГОСТ(Russia) ШX15 ШX15CГ
BS (UK) 534A99 *
JIS (Japan) SUJ2 SUJ3
NF (France) 100C6 100CrMn6
VDEh (Germany) 100Cr6 (1.3505) 1.352
Grade of rollers G3, G5, G10, G16, G20, G24, G28, G40, G60, G100, G200
Bearing Standard
Bearing Precision Grade
GOST Grade 0 Grade 6 Grade 5 Grade 4 Grade 2
ISO P0 P6 P5 P4 P2

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