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Four row tapered roller bearings TQO (Replace SKF)

Four row tapered roller bearings TQO (Replace SKF)

Four-row tapered roller bearings are used in rolling mills for the steel and non-ferrous industry sectors. These bearings are designed for extremely high radial and axial loads as well as for high speeds and impact loads and are used in extremely unfavorable ambient conditions such as high temperatures, water and contamination. With the new Performance series for rolling mills, costs can be significantly reduced from a TCO perspective. Application: Roll neck for plate mill, Hot rolling mill and Cold rolling mills Size range: 175 - 1600 mm (Bore dimension) Common materials: High clean case hardened steel & Chromium steel

The performance of the four-row tapered roller bearing is basically the same as that of the double-row tapered roller bearing, but the radial load is greater than that of the double-row tapered roller bearing, and the limit speed is slightly lower. It is mainly used for heavy machines, such as rolling mills.

Installation of four-row tapered roller bearings:
1. The fit between the inner ring of the four-row tapered roller bearing and the roll neck is generally with clearance. When installing, put the bearing into the bearing box first, and then put the bearing box into the journal.
The outer ring of the two- and four-row tapered roller bearing also adopts a dynamic fit with the bearing box hole. First, install the outer ring A into the bearing box. Characters are printed on the outer ring, inner ring, and inner and outer spacers when leaving the factory. The bearing box must be installed in the order of the characters and symbols during installation. Cannot be interchanged arbitrarily to prevent changes in bearing clearance.
3. After all the parts are installed in the bearing box, the inner ring, and the inner spacer, and the outer ring and the outer spacer are axially abutted.
4. Measure the gap width between the end face of the outer ring and the bearing box cover to determine the thickness of the corresponding gasket.

Four-row tapered roller bearings can accommodate combined (radial and axial) loads at low to moderate speeds.  TQO and TQI design are two main types of four row tapered roller bearings. TQOS is an upgrade design based on TQO. It is an advanced design with sealing system. They are used almost exclusively in roll neck applications such as rolling mills.

Four-row tapered roller bearings, TQO design

Model list of Four-row tapered roller bearings, TQO design (data table)

DesignationDimensionsMassDesign
(AFBMA part number)dDTB

SKF ( TIMKEN )mm/in


kg-
BT4B332406/HA1120.65174.625139.703141.26811TQO/WI
(M224749DW-710-710D)





BT4B330880/HA1127182.562158.75158.7514TQO/WI
(482900W-220-220D)





331138A139.7200.025160.338157.16215.5TQO/WI
(48685D-620-620D)





331138AG139.7200025160.338157.16215.5TQO/GWI
(48680DGW-620-620D)





331329152.4222.25174.625174.62622.5TQO/WI
(M231649DW-610-610D)





330835C165.1225.425168.275165.120.5TQO/WI
(46791DW-720-721D)





331480177.8247.65192.008192.08829TQO/WI
(67790DW-720-721D)





331382187.325269.875211.138211.13841TQO/WI
(M238849DW-810-810D)





BT4B328881/HA1187.325269.875211.136211.13841TQO/WI
(M238849DW-810-810D)





331249190.5266700188.912187.32533.5TQO/WI
(67885DW-820-820D)





330899A198.438284162225.425225.42547.5TQO/WI
(M240648DW-611-611D)





BT4B328065/HA1205320203.6203.554.5TQO/WI







331486206.375282.575190.5190.536.5TQO.Wl
(67985DG-920-921D)





BT4B328348/HA122032020020054TQO/WI







BT4B328003/HA1
340303.5303.5100TQO/WI







331156220.662314.325239.712239.71261.5TQO/WI
(M244249DW-210-210D)





331156G
314.325239.71223971261.5TQO/GWI
(M2)14249DGW-210-210D)





BT4B332637/HA1228.6311.15200.025200.02543.5TQO/WI
(LM245149DW-110-110D)





331399234.95327.025196.85196.8554TQO/WI
(8576DW-20-20D)





331399G
327.025196.85196.8554TQO/GWI
(8576DGW-20-20D)





BT4B328015/HA124033824824a70TQO/WI







BT4B328663/HA1
36021821875.5TQO/WI







BT4B328508
360306.5308.5110TQO/WI







331787241.224366.498228.6228.681,5TQO/WI
(EE127094DW-138-139D)





330782A241.478349.148228.6228.674,5TQO/WI
(EE1270970W-135-136D)





330782AG
349.148228.6228.674.5TQO/GWI
(EE127097DGW-135-136D)





3308e2B244.475327.025193.675193.67546TQO/WI
(LM247748D-710-710D)





330862A244.475327.025193.675193.67546TQO/GWI
(LM247748DGW-710-710D)





BT4B328690/HA1244.475381304.8304130TQO/WI
(EE126096DW-150-151D)





331396245380254265.5105TQO/WI







614096B247.65400.06253.995249.235120TQO/WI
(EE220975DW-1575-1676D)





331275A254358.775269.875269.87588TQO/WI
(M249749DW-710-710D)





331275AG254358.775269.875269.87588TQO/GWI
(M249749DGW-710-710D)





BT4B329070/HA1254358.775269.875339.72592.5TQOE







BT4B328551/HA1260440298.5298.5190TQO/WI







BT4B331487G/HA1260.35422.275317.5314.325180TQO/GWI
(HM252349DGW-310-310D)





330822B266.7355.6228.6230.18865.5TQO/WI
(76589DW-520-520D)





BT4B328209/HA1266.7355.6220.6230.18865.5TQO/WI
(LM461349DW-310-310D)





BT4B331168B269.875381282.575282.575105TQO/WI
(M252349DW-310-310D)





331288276.225393.7269.875269.878100TQO/WI
(EE275109D-155-156D)





331288G276.225393700269.875269.875100TQO/GWI
(EE275109DGW-155-156D)





BT4B328293/HA1279.4381269.875269.87591TQO/WI







BT4B332390/HA1279.4393.7269.875269.875102TQO/WI
(EE135111DW-155-156D)





330540A279.578380.898244.475244.47586TQO/WI
(LM654644DW-610-610D)





330540AG279.578380.098244.475244.47586TQO/QWI
(LM654644DGW-610-610D)





BT4B328613G/HA128038029029095TQO/QWI







BT4B328681G/HA128038029029095.5TQO/GWI







BT4B328807/WA1280395288288110TQO/WI







BT4B328882/MA1280395280288115TQO/WI







BT4B328664/HA1280420250250115TQO/WI







BT4B332441G/HA1280460324324215TQO/GWI







330337A285.75300.898244.475244.47581TQO/WI
(LM654646DW-610-610D)





330337AG285.75380.898244.475244.47581TQO/GWI
(LM654648DGW-610-610D)





BT4B331452/HA1288.925406.4290.45298.45125TQO/WI
(LM255449DW-410-410D)





BT4B331452G/HA1288.925406.4298.45298.45125TQO/GWI
(M255449DGW-410-410D)





331968292.1422.275269.875269875125TQO/GWI
(EE330116DGW-166-167D)





BT4B328725G/HA1300440279.4280.968145TQO/GWI







BT4B332472300480388.5388.5240TQO/GWI







331207300.038422.275311.15311.15140TQO/GWI
(HM256849DGW-810-810D)





BT4B328828G/HA1304.646438.048279.4280.99135TQO/GWI







331492304.646430.048279.4280.99135TQO/GWI
(M757448DGW-410-410D)





BT4B331687/HA1304.8419.1269.875269.875110TQO/WI
(M257149DW-110-110D)





330693C304.8402.6377.825366.125265TQO.1







330758A304.902412.648266.7266.7105TQO/WI
(M257248DW-210-210D)





330758AG304.902412.648266.7266.7105TQO/GWI
(M257246DGW-210-210D)





330870A317.5422.275269.875269.875105TQO/QWl
(LM258648DGW-610-610D)





BT4B334020G/HA4317.5438.15276.225276.225125TQO/GWI







BT4B331161AG/HA4317.5447.675327.025327.025165TQO/GWI
(HM259049DGW-010-010D)





BT4B332647G/HA1330.2444.5301.625301.625135TQO/GWI
(M260149DGW-110-110D)





331664330.302438.023254247.65110TQO/GWI
(EE138131DGW-172-173D)





331381333.375469.9342.9342.9190TQO/GWI
(HM261049DGW-010-010D)





BT4B332963/HA1340520323.5323.5245TQO/WI







BT4B331553/HA1342.9571.5342.9342.54365TQO/WI







330661C343.052457.098254254110TQO/WI
(LM761649DG-610-610D)





330661CG343.052457.098254254110TQO/QWI
(LM761649DGW-610-610D)





331228346.075488.95358.775358.775220TQOWI
(HM262749D-710-710D)





BT4B331077AG/HA1347.662469.9260.35260.35130TQO/GWI
(LM262449DGW-410-410D)





331092A347.662469.9292.1292.1150TQO/GWl
(M262449DGW-410-410D)





331508355490316316185TQO/GWI







330662AG355.6482.6269875265112140TQO/GWI
(LM763449DGW-410-410D)





331271355.6468.95317.5317.5195TQO/GWI
(M26a349DGW-310-310D)





332059360510360380255TQO/GWI







BT4B328159.HA1360540280280230TQO/WI







331159A368.3523.875382.588382.588275TQO/GWI
(HM26G049DGW-010-010D)





BT4B332188/HA1374.65501.65260350250.825140TQO/GWI
(LM765149DGW-110-110D)





BT4B328294/HA1380560325325266TQO/WI







BT4B328816/HA1380560360360296TQO/WI







BT4B332889/HA1380620368360438TQO/WI







331149A384.175546.1400.05400.05310TQO/GWI
(HM266449DGW-410-410D)





331202385.762514.35317.5317.5190TQO/QWI
(LM665949DGW-910-910D)





BT4B332824/HA1395545288.9268195TQO/GWI







331465406.4546.1288.925268.28185TQO/GWI
(EE234161DGW-215-216D)





BT4B330650CG406.4546.1280.925288.925185TQO/GWI
(LM767749DGW-710-710D)





BT4B331347AG/HA1406.4565.1538t381300TQO/GWI
(M267949DGW-910-910D)





331133A406.4590.55400.05400.05370TQO/QWI
(EE833161DGW-232-233D)





BT4B331333/HA1409.575546.1334.962334.962220TQO/WI
(M667947DA-910-910D)





BT4B328967/HA1409.575546.1334.962334.962220TQO/WI







331160A415.925590.55434.975434.975395TQO/GWI
(M268740DGW-710-71OD)





BT4B328826G/HA1420560437437285TQO/GWI







BT4B320374/HA1420620355355375TQO/GWI







331192A430570336.55336.55240TQO/GWI







331125A431.8571.5279.4279.4200TQO/GWI
(LM869449DGW-410-410D)





BT4B331125BG/HA1431.8571.5279.4279.4200TQO/GWI
(LM869449DGW-410-410D)





BT4B331226/HA1431.8571.5336.55336.55240TQO/GWI
(LM769349DGW-310-310D)





332060431.8635355.6355.6385TQO/GWI
(EE931070DGW-250-251XD)





BT4B334019G/HA1431.8635365.6440405TQO/GWI







BT4B328029/HA1440580420420300TQO/WI







332313
650353.5353.5410TQO/GWI







BT4B328670444.5571.5336.55336.55215TQO/GWI







330608C447.675635463.55463.55485TQO/GWI
(M270749DGW-710-710D)





BT4B328161/HA1450580450450280TQO/WI







BT4B332773/HA1450595368368285TQO/WI 1)
(M270449DA-410-410D)





BT4B328365/HA1450595404404306TQO/WI 1)
(M270449DA-41D)





BT4B328287G/HA1457.073730.146419.1412.75630TQO/GWI
(EE671790DGW-2873-2875D)





331169A457.2596.9279.4276.225200TQO/WI
(L770847DW-610-810D)





331169BG457.2596.9279.4276.225200TQO/GWI
(L770847DGW-810-810D)





BT4B334006457.2596.9320320235TQO/GWI







331977460610360360295TQO/GWI







BT4B328285460610400400315TQO/GWI







BT4B332502/HA1460625421421362TQO/WI
(M271149DW-110-110D)





BT4B328692462615.96330.2330.2275TQO/GWI







BT4B328913Q/HA1475600368368250TQO/GWI







BT4B329007/HA1475660450450460TQO/WI







330886B479.425679.45495.3495.3605TQO/GWI
(M272749DGW-710-710D)





332096482.6615.95330.2330.2245TQO/GWI
(LM272248DGW-210-210D)





330641CA482.6615.95330.2330.2245TQO/WI
(LM272249DW-210-210D)





330641CG482.6615.95330.2330.2245TQO/GWI
(LM272249DGW-210-210D)





BT4B331626A/HA1482.6615.95330.2419.1265TQOE/QWI
(LM272249DWA-210-210D)





BT4B331626AG/HA1482.6615.95330.2419.1265TQOE/GWI
(LM272249DGA-210-210D)





BT4B328773G/HA1482.6630420420345TQO/GWI







331259482.6647.7417.512417.512400TQO/GWI
(M272647DGW-610-610D)





BT4B328391G/HA1488.95622.3365.125366.125265TQO/GWI







331090A489.026634.873320.675320.675270TQO/QWI
(EE243193DGW-250-251D)





BT4B331090B489.026634.873320.675320.675270TQO/GWI
(EE243193DGW-250-251D)





BT4B328282/HA1489.026634.873320.675320.675270TQO/WI
(LM772749DW-710-710D)





BT4B328524/HA1500720400400550TQO/WI







BT4B331499G/HA1501.65673.1387.35400.05395TQO/GWI
(EE641198DGW-265-266D)





331081A501.65711.2520.7520.7755TQO/GWl
(M274149DGW-110-110D)





332131508762463.56463.55730TQO/GWI
(EE531201DGW-300-301XD)





BT4B331747A510655379377330TQO/WI







331157A514.35673.1422.275422.275410TQO/GWl
(LM274449DGW-410-410D)





331078A519.112736.6536.575536.575755TQO/GWl
(M275349DGW-310-310D)





BT4B331243A/HA1520.7711.2400.05400.05460TQO/GWl
(LM275349DGW-310-310D)





BT4B331174/HA1536.575761.873558.8558.835TQO/GWl
(M276449DGW-410-410D)





331978540690400400375TQO/GWl







BT4B3340386/HA3540690400434400TQOE/QWl







331165A558.8736.6322.268322.268375TQO/WI
(EE843221DW-290-291D)





331165AG558.8736.6322.268322.268375TQO/GWl
(EE843221DGW-290-291D)





330993BG558.8736.6409.575409.575475TQO/GWl
(LM377449DGW-410-410D)





BT4B331346A/HA1558.8736.6457.2456.612545TQO/WI 1)
(LM277149DA-110-110D)





BT4B331346/HA1558.8736.6457.2456.612545TQO/GWl
(LM277149DGW-110-110D)





BT4B328509/HA45609206186181700TQO.1/WI







330529B571.5812.8593.725593.7251000TO0.I/GWI
(M278749DGW-710-710D)





331189584.2730.25349.25342.9330TQO/GWI







331148A584.2762401.638396.875485TQO/GWI
(LM778549DGW-510-510D)





BT4B320314G/HA1584.2901.7539.747523.081250TQO.1/GWI
(EE665231DGW-355-366D)





331093A585.788771.625479.425479.425625TQO/GWI
(LM278849DGW-810-810D)





331300595.312844.55615.95615.951115TQO.1/GWI
(M280049DGW-010-010D)





331300A595.312844.55615.95615.951115TQO.1/GWI







331566596.9980609.6604.8381920TQO.1/GWI







BT4B328350G/HA1600870488400940TQO/GWI







331625603.25857.25622.3622.31235TQO.1/GWI
(M280249DGW-210-210XD)





331175A609.6787.4361.96361.95455TQO/GWI
(EE649241DGW-310-311D)





331925609.6813.562479.425479.425715TQO/GWI
(LM280249DGW-210-210D)





332391609.6863.6660.4660.41240TQO.1/GWI
(M280349DGW-310-310D)





BT4B328510/HA1620800363.5363.5465TQO/WI







330990A635901.7654.05654.051420TQO.1/QWI
(M281049DGW-010-010D)





BT4B332671/HA1646.112857.25542925542.025875TQO/GWI
(LM281049DGW-310-010D)





3323076509156746741430TQO.1/GWI
(M281349DGW-310-310D)





BT4B332827AG/HA165010305605601830TQO.1/GWI







330824A657.225933.45676275676.2751575TQO.1/GWI
(M281649DGW-610-610D)





BT4B331065AG/HA4660855318.48319.192490TQO.1/GWI
(EE749259DGW-334-335D)





BT4B328511/HA1660855318.6318.6490TQO/WI







331190660.4812.8365.125365.125420TQO/GWI
(L281149DGW-110-110D)





BT4B332906/HA46769106206201150TQO.1/GWI







331700679.45901.7552.45552.45975TQO.1/GWI
(LM281849DGW-810-810D)





BT4B331700AG/HA4679.45901.7552.45552.45975TQO/GWI
(LM281849DGW-810-810D)





331503G/HA1682.625965.2701.675701.6751750TQO.1/GWI
(M282249DGW-210-210D)





331089685.8876.3355.6352.425530TQO/GWI
(EE656271DGW-345-346D)





BT4B331089A/HA4685.8876.3355.6352.425530TQO.1/GWI
(EE655271DGW-345-346D)





BT4B328704G/HA1685.8876.3355.6434.975580TQOE.I/GWI
(EE655271DWA.345-346D)





BT4B332098A/HA4708.025930275565.15565.151030TQO.1/GWI
LM282549DGW-510-510D)





331351710900410410660TQO.1/GWI
(L882449DGW-410-410D)





BT4B331351AG/HA1710900410410660TQO/GWI
(L882449DGW-410-410D)





330882C711.2914.4317.5317.5525TQO/GWI
(EE755281DGW-360-361D)





BT4B331358/HA4714.3751016704.85704.851950TQO.1/GWI
(M383240DGW-210-210D)





332244717.55946.15565.15665.151090TQO.1/GWI
(LM282347DGW-810-810D)





331752730940500500925TQO.1/GWI







330803A730.251035.05755.65755.652170TQO.1/GWI
(M283449DGW-410-410D)





331616749.3990.66056051250TQO.1/GWI
(M283649DGW-610-610D)





331094A749.31066.8736.6723.92250TQO.1/GWI
(EE325296DGW-420-421XD)





BT4B328376/HA475011306906902430TQO.1/GWI







3319077621066.8736.6723.92145TQO.1/GWI
(M204140DGW-111-110D)





330676B7621079.5787.4787.42480TQO.1/GWI
(M284249DGW-210-21OD)





331248812.81143768.36768.352590TQO.I/GWI







BT4B331066A/HA4825.51168.4844.55844.553060
(M285848DGW-810-810D)





33106985013609109105440







BT4B331123B863.61130.3669.925669.9251900
(LM286249DGW-210-210D)





BT4B332967/HA4863.61160.987844.55844.552700







BT4B331649/HA4863.61181.1666.756667502150
(LM286449DGW-410-410D)





BT4B330742A/HA4863.61219.288876.33470
(EE547341DGW-480-481D)





BT4B332981/HA4877.8881220844.55844.553080
(LM286749DGW-711)





330903A901.71295.4914.4901.74170
(EE634356DGW-510-510D)





330726A938.2131270825.5825.53230
(LM287649DGW-610-610D)





BT4B330944AG/HA4939.81333.5952.5962.54510
(LM287849DGW-210-210D)





BT4B334031/HA1100113608008003390







BT4B331372/HA41003.31358.9800.1800.13450







BT4B328100/HA410701400889.762889.7623730







BT4B331559/HA4108014509509604450







BT4B331334/HA41139.8251509.712923.925923.9254840







3314401200.151593.85990.6990.65635
(LM288949DGW-910-910D)





BT4B328819G/HA1125015508909903820







BT4B332124/HA412601640100010005800







BT4B331950/HA413001720104010407000







33134913701765105010356960







BT4B332078/HA415001900108010807700







BT4B331934/HA415801960108010607800



A Leading Industrial Bearings Supplier

Why Choose FV Bearings?

FV Bearing is a leading supplier of precision bearings and bearings related products across a large spectrum of customers – preimarily OEMs and major distributors.

Leading industrial ball bearings with best materials

Accurate response to client’s request

FV Bearings Co.Ltd has rich experiences in bearings manufacturing and processing, the professional bearing engineers can handle your requirements on bearings exactly and output the accurate bearing products.

World’s leading roller bearings manufacturer

FV Bearings is a leading roller bearings manufacturer provides high quality and durable roller bearings for different industries such as automotive, aerospace, machinery, power plants, chemistry industry, agriculture and other fields.

Solutions for special bearings and high end bearings

If you are looking for special bearings and high end bearings, FV bearings can help you to customize any special bearings according to your needs based on advanced bearings manufacturing technology.

Send us an Email for Quote

sales@fv-bearing.com

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Advanced Industrial Bearing Technology

Latest Bearings News & Knowledge

News and knowledge about ball bearings, roller bearings, special bearings,
deep groove ball bearings, and thrust roller bearings

China FV bearing breaks through the tech...

The domestic manufacture of ADAPT series continuous caster roller bearings will be completed by china FV BEARING INDUSTRIES in 2021.Look forward to ou...

Characteristics of Thrust Tapered Roller...

Thrust tapered roller bearings can form a very compact axial bearing configuration, which can withstand heavy axial loads, is insensitive to impact lo...

The Detection of Rolling Mill Bearing Ra...

According to the functional characteristics of rolling mill bearings and the difference in operating conditions, after selecting the appropriate beari...

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Describe your needs such as bearing type and bearing code, or parameter.

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