Four row tapered roller bearings TQO (Replace SKF)

2020-07-27 16:48:04 FV BEARING 12

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)
 

DimensionsMassDesignationDesign
dDTBd.D1r1.2 r3.4 
(AFBMA part number)
mm/in




minminkgSKF ( TIMKEN )-
120.65174.625139.703141.2681331540.81.511BT4B332406/HA1TQO/WI









(M224749DW-710-710D)
127182.562158.75158.751421621.53.314BT4B330880/HA1TQO/WI









(482900W-220-220D)
139.7200.025160.338157.1621581780.83.315.5331138ATQO/WI









(48685D-620-620D)
139.7200025160.338157.1621581780.83.315.5331138AGTQO/GWI









(48680DGW-620-620D)
152.4222.25174.625174.6261711941.51.522.5331329TQO/WI









(M231649DW-610-610D)
165.1225.425168.275165.11821980.83.320.5330835CTQO/WI









(46791DW-720-721D)
177.8247.65192.008192.08819321B1.53.329331480TQO/WI









(67790DW-720-721D)
187.325269.875211.138211.1382092411.53.341331382TQO/WI









(M238849DW-810-810D)
187.325269.875211.136211.1382092391.53.341BT4B328881/HA1TQO/WI









(M238849DW-810-810D)
190.5266700188.912187.3252082331.53.333.5331249TQO/WI









(67885DW-820-820D)
198.438284162225.425225.4252182521.53.347.5330899ATQO/WI









(M240648DW-611-611D)
205320203.6203.52332804354.5BT4B328065/HA1TQO/WI











206.375282.575190.5190.52232470.83.336.5331486TQO.Wl









(67985DG-920-921D)
2203202002002402831354BT4B328348/HA1TQO/WI












340303.5303.527229243100BT4B328003/HA1TQO/WI











220.662314.325239.712239.7122422781.53.361.5331156TQO/WI









(M244249DW-210-210D)

314.325239.7122397122422781.53.361.5331156GTQO/GWI









(M2)14249DGW-210-210D)
228.6311.15200.025200.0252482821.53.343.5BT4B332637/HA1TQO/WI









(LM245149DW-110-110D)
234.95327.025196.85196.852652901.53.354331399TQO/WI









(8576DW-20-20D)

327.025196.85196.85^652901.53.354331399GTQO/GWI









(8576DGW-20-20D)
24033824824a2613004370BT4B328015/HA1TQO/WI












3602182182703241.5475.5BT4B328663/HA1TQO/WI












360306.5308.526631443110BT4B328508TQO/WI











241.224366.498228.6228.6271306
3.381,5331787TQO/WI









(EE127094DW-138-139D)
241.478349.148228.6228.62713081*53,374,5330782ATQO/WI









(EE1270970W-135-136D)

349.148228.6228.6271308153.374.5330782AGTQO/GWI









(EE127097DGW-135-136D)
244.475327.025193.675193.6752642991,53.3463308e2BTQO/WI









(LM247748D-710-710D)
244.475327.025193.675193.6752642991.53.346330862ATQO/GWI









(LM247748DGW-710-710D)
244.475381304.8304276321334.8130BT4B328690/HA1TQO/WI









(EE126096DW-150-151D)
245380254265.52803291.54105331396TQO/WI











247.65400.06253.995249.2352963461.56.4120614096BTQO/WI









(EE220975DW-1575-1676D)
254358.775269.875269.8752793191.53.388331275ATQO/WI









(M249749DW-710-710D)
254358.775269.875269.8752793191.53.388331275AGTQO/GWI









(M249749DGW-710-710D)
254358.775269.875339.7252753201.53.392.5BT4B329070/HA1TQOE











260440298.5298.53003722.55190BT4B328551/HA1TQO/WI











260.35422.275317.5314.3252903706.43.3180BT4B331487G/HA1TQO/GWI









(HM252349DGW-310-310D)
266.7355.6228.6230.1882883181.53.365.5330822BTQO/WI









(76589DW-520-520D)
266.7355.6220.6230.1882883221.53.365.5BT4B328209/HA1TQO/WI









(LM461349DW-310-310D)
269.875381282.575282.5752963393.33.3105BT4B331168BTQO/WI









(M252349DW-310-310D)
276.225393.7269.875269.8783023511.56.4100331288TQO/WI









(EE275109D-155-156D)
276.225393700269.875269.8753023511.56.4100331288GTQO/GWI









(EE275109DGW-155-156D)
279.4381269.875269.8753003401.53.391BT4B328293/HA1TQO/WI











279.4393.7269.875269.8753063531.56.4102BT4B332390/HA1TQO/WI









(EE135111DW-155-156D)
279.578380.898244.475244.4753083371.53.386330540ATQO/WI









(LM654644DW-610-610D)
279.578380.098244.475244.475308337
3.386330540AGTQO/QWI









(LM654644DGW-610-610D)
28038029029030434312.595BT4B328613G/HA1TQO/QWI











280380290290304343224.395.5BT4B328681G/HA1TQO/GWI











280395288288309348254110BT4B328807/WA1TQO/WI











28039528028830934826115BT4B328882/MA1TQO/WI











28042025025031437525115BT4B328664/HA1TQO/WI











28046032432433239766215BT4B332441G/HA1TQO/GWI











285.75300.898244.475244.4753003371.53.381330337ATQO/WI









(LM654646DW-610-610D)
285.75380.898244.475244.4753083371.53.381330337AGTQO/GWI









(LM654648DGW-610-610D)
288.925406.4290.45298.453143613.33.3125BT4B331452/HA1TQO/WI









(LM255449DW-410-410D)
288.925406.4298.45298.453143613.33.3125BT4B331452G/HA1TQO/GWI









(M255449DGW-410-410D)
292.1422.275269.8752698753243796.43.3125331968TQO/GWI









(EE330116DGW-166-167D)
300440279.4280.9683343003.34.8145BT4B328725G/HA1TQO/GWI











300480388.5388.533640055240BT4B332472TQO/GWI











300.038422.275311.15311.153283753.33.3140331207TQO/GWI









(HM256849DGW-810-810D)
304.646438.048279.4280.993373852x15°4.8135BT4B328828G/HA1TQO/GWI











304.646430.048279.4280.993373853.34.8135331492TQO/GWI









(M757448DGW-410-410D)
304.8419.1269.875269.8753283781.5B.4110BT4B331687/HA1TQO/WI









(M257149DW-110-110D)
304.8402.6377.825366.1253454163.33.3265330693CTQO.1











304.902412.648266.7266.73293713.33.3105330758ATQO/WI









(M257248DW-210-210D)
304.902412.648266.7266.73293713.33.3105330758AGTQO/GWI









(M257246DGW-210-210D)
317.5422.275269.875269.8753423821.53.3105330870ATQO/QWl









(LM258648DGW-610-610D)
317.5438.15276.225276.2253423921.53.3125BT4B334020G/HA4TQO/GWI











317.5447.675327.025327.0253443973.33.3165BT4B331161AG/HA4TQO/GWI









(HM259049DGW-010-010D)
330.2444.5301.625301.6253574013.33.3135BT4B332647G/HA1TQO/GWI









(M260149DGW-110-110D)
330.302438.023254247.653573911.53.3110331664TQO/GWI









(EE138131DGW-172-173D)
333.375469.9342.9342.93654193.33.3190331381TQO/GWI









(HM261049DGW-010-010D)
340520323.5323.53784651.55245BT4B332963/HA1TQO/WI











342.9571.5342.9342.543935083.36.4365BT4B331553/HA1TQO/WI











343.052457.0982542543704101.53.3110330661CTQO/WI









(LM761649DG-610-610D)
343.052457.0982542543704101.53.3110330661CGTQO/QWI









(LM761649DGW-610-610D)
346.075488.95358.775358.7753794343.33.3220331228TQOWI









(HM262749D-710-710D)
347.662469.9260.35260.353994281.53.3130BT4B331077AG/HA1TQO/GWI









(LM262449DGW-410-410D)
347.662469.9292.1292.13774263.33.3150331092ATQO/GWl









(M262449DGW-410-410D)
3554903163163924391.53.3185331508TQO/GWI











355.6482.62698752651123844301.53.3140330662AGTQO/GWI









(LM763449DGW-410-410D)
355.6468.95317.5317.53924391.53.3195331271TQO/GWI









(M26a349DGW-310-310D)
36051036038039345426255332059TQO/GWI











36054028028040047855230BT4B328159.HA1TQO/WI











368.3523.875382.588382.5884024643.36.4275331159ATQO/GWI









(HM26G049DGW-010-010D)
374.65501.65260350250.8254004521.53.3140BT4B332188/HA1TQO/GWI









(LM765149DGW-110-110D)
38056032532541750425266BT4B328294/HA1TQO/WI











38056036036041749726296BT4B328816/HA1TQO/WI











38062036836043353866438BT4B332889/HA1TQO/WI











384.175546.1400.05400.054194843.36.4310331149ATQO/GWI









(HM266449DGW-410-410D)
385.762514.35317.5317.54144603.33.3190331202TQO/QWI









(LM665949DGW-910-910D)
395545288.9268440489510195BT4B332824/HA1TQO/GWI











406.4546.1288.925268.284384891.56.4185331465TQO/GWI









(EE234161DGW-215-216D)
406.4546.1280.925288.9254364911.56.4185BT4B330650CGTQO/GWI









(LM767749DGW-710-710D)
406.4565.1538t3814425073.36.4300BT4B331347AG/HA1TQO/GWI









(M267949DGW-910-910D)
406.4590.55400.05400.054465253.36r4370331133ATQO/QWI









(EE833161DGW-232-233D)
409.575546.1334.962334.9624545231.56.4220BT4B331333/HA1TQO/WI









(M667947DA-910-910D)
409.575546.1334.962334.9624545236.46.4220BT4B328967/HA1TQO/WI











415.925590.55434.975434.9754545233.36.4395331160ATQO/GWI









(M268740DGW-710-71OD)
42056043743745050846285BT4B328826G/HA1TQO/GWI











42062035535546955325375BT4B320374/HA1TQO/GWI











430570336.55336.554645111.53.3240331192ATQO/GWI











431.8571.5279.4279.44655111.53.3200331125ATQO/GWI









(LM869449DGW-410-410D)
431.8571.5279.4279.44655111.53.3200BT4B331125BG/HA1TQO/GWI









(LM869449DGW-410-410D)
431.8571.5336.55336.554645111.53.3240BT4B331226/HA1TQO/GWI









(LM769349DGW-310-310D)
431.8635355.6355.64755686.46.4385332060TQO/GWI









(EE931070DGW-250-251XD)
431.8635365.64404755686.46.4405BT4B334019G/HA1TQO/GWI











4405804204204705284.567300BT4B328029/HA1TQO/WI












650353.5353.54825676.46.4410332313TQO/GWI











444.5571.5336.55336.554705281.53.3215BT4B328670TQO/GWI











447.675635463.55463.554885633.36.4485330608CTQO/GWI









(M270749DGW-710-710D)
45058045045047652836280BT4B328161/HA1TQO/WI











45059536836848954036285BT4B332773/HA1TQO/WI 1)









(M270449DA-410-410D)
45059540440448954036306BT4B328365/HA1TQO/WI 1)









(M270449DA-41D)
457.073730.146419.1412.755306371.56.4630BT4B328287G/HA1TQO/GWI









(EE671790DGW-2873-2875D)
457.2596.9279.4276.2254875441.53.3200331169ATQO/WI









(L770847DW-610-810D)
457.2596.9279.4276.2254875441.53.3200331169BGTQO/GWI









(L770847DGW-810-810D)
457.2596.93203204675443.33.3235BT4B334006TQO/GWI











46061036036049255536295331977TQO/GWI











4606104004004926002.54315BT4B328285TQO/GWI











46062542142149656139362BT4B332502/HA1TQO/WI









(M271149DW-110-110D)
462615.96330.2330.24965603.36.4275BT4B328692TQO/GWI











47560036836850555226250BT4B328913Q/HA1TQO/GWI











47566045045051059846460BT4B329007/HA1TQO/WI











479.425679.45495.3495.35145673.36.4605330886BTQO/GWI









(M272749DGW-710-710D)
482.6615.95330.2330.25145676.46.4245332096TQO/GWI









(LM272248DGW-210-210D)
482.6615.95330.2330.25145673.36.4245330641CATQO/WI









(LM272249DW-210-210D)
482.6615.95330.2330.25145673.36.4245330641CGTQO/GWI









(LM272249DGW-210-210D)
482.6615.95330.2419.15145673.56.4265BT4B331626A/HA1TQOE/QWI









(LM272249DWA-210-210D)
482.6615.95330.2419.15145673.56.4265BT4B331626AG/HA1TQOE/GWI









(LM272249DGA-210-210D)
482.66304204205065703.36.4345BT4B328773G/HA1TQO/GWI











482.6647.7417.512417.5125205853.36.4400331259TQO/GWI









(M272647DGW-610^610D)
488.95622.3365.125366.12551557033265BT4B328391G/HA1TQO/GWI











489.026634.873320.675320.6755265813.333270331090ATQO/QWI









(EE243193DGW-250-251D)
489.026634.873320.675320.6752565813.33.3270BT4B331090BTQO/GWI









(EE243193DGW-250-251D)
489.026634.873320.675320.6755225733.33.3270BT4B328282/HA1TQO/WI









(LM772749DW-710-710D)
50072040040054764036550BT4B328524/HA1TQO/WI











501.65673.1387.35400.055386123.36.4395BT4B331499G/HA1TQO/GWI









(EE641198DGW-265-266D)
501.65711.2520.7520.75466313.36.4755331081ATQO/GWl









(M274149DGW-110-110D)
508762463.56463.555666746.46.4730332131TQO/GWI









(EE531201DGW-300-301XD)
5106553793775426001.56.4330BT4B331747ATQO/WI











514.35673.1422.275422.2755496123.36.4410331157ATQO/GWl









(LM274449DGW-410-410D)
519.112736.6536.575536.5755676533.36.A755331078ATQO/GWl









(M275349DGW-310-310D)
520.7711.2400.05400.055676533.36.4460BT4B331243A/HA1TQO/GWl









(LM275349DGW-310-310D)
536.575761.873558.8558.85066753.36.435BT4B331174/HA1TQO/GWl









(M276449DGW-410-410D)
54069040040057163736375331978TQO/GWl











54069040043456563715400BT4B3340386/HA3TQOE/QWl











558.8736.6322.268322.2686046783.36.4375331165ATQO/WI









(EE843221DW-290-291D)
558.8736.6322.268322.2686046703.36.4375331165AGTQO/GWl









(EE843221DGW-290-291D)
558.8736.6409.575409.5755976703.36.4475330993BGTQO/GWl









(LM377449DGW-410-410D)
558.8736.6457.2456.6126046693.36.A545BT4B331346A/HA1TQO/WI 1)









(LM277149DA-110-110D)
558.8736.6457.2456.6126046693.36.4545BT4B331346/HA1TQO/GWl









(LM277149DGW-110-110D)
5609206186186328007.57.51700BT4B328509/HA4TQO.1/WI











571.5812.8593.725593.7256257203.36.41000330529BTO0.I/GWI









(M278749DGW-710-710D)
584.2730.25349.25342.96146681.53.3330331189TQO/GWI











584.2762401.638396.8756206883.36.4485331148ATQO/GWI









(LM778549DGW-510-510D)
584.2901.7539.747523.087338033.39.71250BT4B320314G/HA1TQO.1/GWI









(EE665231DGW-355-366D)
585.788771.625479.425479.4256257023.36.4625331093ATQO/GWI









(LM278849DGW-810-810D)
595.312844.55615.95615.956637493.36.41115331300TQO.1/GWI









(M280049DGW-010-010D)
595.312844.55615.95615.9564074858.21115331300ATQO.1/GWI











596.9980609.6604.8386868516.412.71920331566TQO.1/GWI











60087048840065078536940BT4B328350G/HA1TQO/GWI











603.25857.25622.3622.36567603.36.41235331625TQO.1/GWI









(M280249DGW-210-210XD)
609.6787.4361.96361.956467213.36.4455331175ATQO/GWI









(EE649241DGW-310-311D)
609.6813.562479.425479.4256537363.36.4715331925TQO/GWI









(LM280249DGW-210-210D)
609.6863.6660.4660.46647783.36.41240332391TQO.1/GWI









(M280349DGW-310-310D)
620800363.5363.565673236465BT4B328510/HA1TQO/WI











635901.7654.05654.056948003.36.41420330990ATQO.1/QWI









(M281049DGW-010-010D)
646.112857.25542925542.0256907763.36.4875BT4B332671/HA1TQO/GWI









(LM281049DGW-310-010D)
6509156746747479053.36.41430332307TQO.1/GWI









(M281349DGW-310-310D)
650103056056074790415101830BT4B332827AG/HA1TQO.1/GWI











657.225933.45676275676.2757188273.36.41575330824ATQO.1/GWI









(M281649DGW-610-610D)
660855318.48319.1927147854.89.7490BT4B331065AG/HA4TQO.1/GWI









(EE749259DGW-334-335D)
660855318.6318.670079057.5490BT4B328511/HA1TQO/WI











660.4812.8365.125365.1256967513.36.4420331190TQO/GWI









(L281149DGW-110-110D)
676910620620725821481150BT4B332906/HA4TQO.1/GWI











679.45901.7552.45552.457538173.36.4975331700TQO.1/GWI









(LM281849DGW-810-810D)
679.45901.7552.45552.457538173.36.4975BT4B331700AG/HA4TQO/GWI









(LM281849DGW-810-810D)
682.625965.2701.675701.6757408573.36.41750331503G/HA1TQO.1/GWI









(M282249DGW-210-210D)
685.8876.3355.6352.4257338033.36.4530331089TQO/GWI









(EE656271DGW-345-346D)
685.8876.3355.6352.4257338033.36.4530BT4B331089A/HA4TQO.1/GWI









(EE655271DGW-345-346D)
685.8876.3355.6434.9757308033.36.4580BT4B328704G/HA1TQOE.I/GWI









(EE655271DWA.345-346D)
708.025930275565.15565.157568463.36.41030BT4B332098A/HA4TQO.1/GWI









LM282549DGW-510-510D)
71090041041075683436660331351TQO.1/GWI









(L882449DGW-410-410D)
71090041041075683436660BT4B331351AG/HA1TQO/GWI









(L882449DGW-410-410D)
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