331138 AG Four-Row Tapered Roller Bearing

Quattuor-Row Tapered Rollerus Bearings gravis Officium Applications
Quattuor ordines cylindrus acuminati gestus speciales sunt in consilio principaliter adhibendo ad onera alta radialia et partialia onera axialis accommodanda. Solent in machinationibus gravibus adhibitis ut mola volventia (exampla, quattuor alta mola volventia calida, mola volventia frigida) et molendina florentia. Earum lineamenta designatio scutulis disposita est in quattuor annulis exterioribus attenuatis, inde in altae oneris capacitatis et vitae servitutis extenso. Praeterea eorum alvi praemoveri possunt modificatione spacers (vel shims) ad diversa requisita perficienda.

PREV：(XXX)CII Unius Row Tapered Roller Ferens DEINDE：XRT060-NT Ferens

Descriptio
Specifications
Contact Us

Compositio structuralis
· Aperi Type: Tres exteriores anulos complectitur (cyathos), duos interiores annulos (conos), quatuor phalangas ordines, duos exteriores, unum interiorem.
· Signatus Type: Duos annulos obsignantes ad structuram patentis generis addit.

Key Features
· Summus Load-faciens capacitatem: Quattuor cylindri ordinis dispositio signanter maiora onera radialia sustinenda ad gestus bilingues comparata.
· Fundo Service Vita: Optima finis superficies cylindri et superficies contactus rotundi promovet formationem pelliculae hydrostaticae/hydrodynamicae ducatus, quae resistentiam auget.
· Securus Installation: Typice designatur cum laxa apta ad simpliciorem institutionem et amotionem.
· Novifacta Clearance: Interna alvi portio vel praeaccommodanda est, vel praecise per adaptandi spacers usum, quae gyratorium accurate praestat et vitae servitium prorogat.
·High Reliability: Optima consilia signandi efficaciter impediunt contaminationem externam, dum simul minuunt frictionem et generationem caloris.

Prima Applications
· Molendina Rolling: Operis volvitur in quattuor alta molendinis aestus volvens et frigidum volvens molendina, etc.
·Floing Mills: Usus est in industria ferri ad florentes et lapsus operationes.
· Gravis machinatio: Ut fodienda apparatu.

Basic dimensiones				Basic onus rating		Celeritas ratings		Mass	Exemplar
Basic dimensiones				Dynamic	Static	Reference celeritas	Limitandi celeritas	Mass	Ferens No.
d [mm]	D [mm]	B [mm]	T [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]	Ferens No.
139.7	200.025	157.162	160.34	160.34					331138 AG Ferens
177.8	247.65	192.088	192.088	192.088					331480 G Ferens
177.8	247.65	192.088	192.088	192.088					BT4-0010 G/HA1C400VA903 supportantes
198.438	284.162	225.425	225.425	225.425					BT4-0027 AG/HA1 Ferens
206.375	282.575	190.5	190.5	190.5					BT4-0013 G/HA1C400VA903 supportantes
206.375	282.575	190.5	190.5	190.5					BT4-0021 G/HA1 Ferens
220	295	315	315	315					BT4-0035 E8/C355 Ferens
220.662	314.325	239.712	239.712	239.712					BT4-0040 E8/C355 supportantes
240	338	248	248	248					BT4-0020/HA1 Ferens
241.478	349.148	228.6	228.6	228.6					330782 AG Bear
244.475	327.025	193.675	193.675	193.675					330862 B Ferens
254	358.775	268.875	268.875	268.875					BT4-0039 E8/C355 Ferens
266.7	355.6	230.188	228.6	228.6					BT4-0014 G/HA1C400VA903 supportantes
266.7	355.6	230.188	228.6	228.6					BT4B 328209 G/HA1C455 Ferens
269.875	381	282.575	282.575	282.575					BT4B 331168 B Ferens
276.225	393.7	269.875	269.875	269.875					BT4-0012 G/HA1C500VA901 supportantes
279.4	393.7	269.875	269.875	269.875					BT4-0011 G/HA1C500VA901 supportantes
279.578	380.898	244.475	244.475	244.475					330540 AG Bear
280	406.4	298.45	298.45	298.45					BT4-0026 A/PEX Ferens
285.75	380.898	244.475	244.475	244.475					330337 AG Bear
285.75	380.898	244.475	244.475	244.475					BT4-0015 G/HA1C400VA903 supportantes
288.925	406.4	298.45	292.45	292.45					BT4B 331452 G/HA1 Ferens
292.1	422.275	269.875	269.875	269.875					BT4B 331968 BG/HA1 Ferens
304.648	438.048	280.99	279.4	279.4					331492 Ferens
304.8	501.65	336.55	336.55	336.55					BT4B 328909 G/HA1VA901 Bear
304.902	412.648	266.7	266.7	266.7					330758 BG Ferens
304.902	412.648	266.7	266.7	266.7					BT4-0004 G/HA1 Ferens
310	430	310	310	310					BT4-8093 G/HA1VA901 Ferens
317.5	422.275	269.875	269.875	269.875					330870 BG Ferens
317.5	447.675	327.025	327.025	327.025					BT4B 331161 AG/HA4 Ferens

Basic dimensiones				Basic onus rating		Celeritas ratings		Mass	Exemplar
Basic dimensiones				dynamic	static	Reference celeritas	Limitandi celeritas	Mass	Ferens No.
d [mm]	D [mm]	B [mm]	T [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]	Ferens No.
317.5	447.675	327.025	327.025	327.025					BT4B 331161 BG/HA1 Ferens
317.5	422.275	269.875	269.875	269.875					BT4B 334023 E1/C675 Ferens
330.2	444.5	301.625	301.625	301.625					BT4B 332647 G/HA1 Ferens
330.302	438.023	247.65	254	254					BT4-8113 E2/C500 Ferens
333.375	469.9	342.9	342.9	342.9					331381 Ferens
343.052	457.098	254	254	254					BT4-8160 E8/C475 Ferens
343.052	457.098	254	254	254					BT4-8160 E81/C400 Ferens
343.052	457.098	254	254	254					BT4-8160 E81/C475 Ferens
343.052	457.098	254	254	254					BT4B 328817 E1/C475 supportantes
343.052	457.098	254	254	254					BT4B 328817 EX1/C475 Ferens
346.075	488.95	358.775	358.775	358.775					BT4B 331228 G/HA1C200 Ferens
347.662	469.9	292.1	292.1	292.1					331092 A Bearing
347.662	469.9	292.1	292.1	292.1					BT4-8070 G/HA1VA901 Ferens
355.6	488.95	317.5	317.5	317.5					331271 Ferens
355.6	482.6	265.113	269.875	269.875					BT4-8162 E8/C480 Ferens
355.6	482.6	265.113	269.875	269.875					BT4-8162 E81/C480 Ferens
355.6	482.6	265.113	269.875	269.875					BT4B 328870 EX1/C300 Bear
355.6	488.95	317.5	317.5	317.5					BT4B 328912 E1/C300 Bear
355.6	488.95	317.5	317.5	317.5					BT4B 328912 E3/C675 supportantes
360	510	380	380	380					332059 supportantes
368.3	523.875	382.588	382.588	382.588					331159 A Bear
380	560	390	360	360					BT4-8033 G/HA1 Ferens
380	540	300	300	300					BT4-8086 G/HA1 Ferens
384.175	546.1	400.05	400.05	400.05					331149 E/C675 Ferens
384.175	546.1	400.05	400.05	400.05					BT4-8025 G/HA1C300VA903 supportantes
384.175	546.1	400.05	400.05	400.05					BT4B 334128/HA1 Ferens
385.762	514.35	317.5	317.5	317.5					BT4B 334042 E1/C575
395	545	268	288.9	288.9					BT4B 332824 E/C475 Ferens
395	545	268	288.9	288.9					BT4B 332824/HA1 Ferens
400	600	308	308	308					BT4-8147 G/HA1 Ferens

Basic dimensiones				Basic onus rating		Celeritas ratings		Mass	Exemplar
Basic dimensiones				dynamic	static	Reference celeritas	Limitandi celeritas	Mass	Ferens No.
d [mm]	D [mm]	B [mm]	T [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]	Ferens No.
406.4	562	381	381	381					BT4-8126 E1/C575 Ferens
406.4	546.1	288.925	288.925	288.925					BT4-8161 E8/C500
406.4	546.1	288.925	288.925	288.925					BT4-8161 E81/C500 Bear
406.4	546.1	288.925	288.925	288.925					BT4B 328838 BG/HA1VA902 Ferens
406.4	565.15	381	381	381					BT4B 331347 AG/HA1 Ferens
406.4	546.1	330	330	330					BT4B 334093 BG/HA1VA902 Ferens
409.575	546.1	334.962	334.962	334.962					BT4B 329004 G/HA1VA901 Bear
409.575	546.151	334.962	334.962	334.962					BT4B 331333 E/C350 Ferens
409.575	546.1	334.962	334.962	334.962					BT4B 331333 E/C575 Ferens
431.8	571.5	400	400	400					BT4-8067 G/HA1VA902 Ferens
431.8	571.5	336.55	336.55	336.55					BT4B 331226 AG/HA1 Ferens
431.8	571.5	336.55	336.55	336.55					BT4B 331226 BG/HA1 Ferens
431.8	571.5	336.55	336.55	336.55					BT4B 331226/HA1 Ferens
431.8	635	440	355.6	355.6					BT4B 334019 G/HA1 Ferens
440	650	353.5	353.5	353.5					332313 supportantes
440	580	360	360	360					BT4-8124 E/C550 Ferens
440	650	353.5	353.5	353.5					BT4B 328944 G/HA1VA901 Bear
440	590	480	480	480					BT4B 334055 ABG/HA1VA902 Ferens
447.675	635	463.55	463.55	463.55					330608 C Bear
450	595	404	404	404					BT4-8044 G/HA1VA902 Ferens
450	595	368	368	368					BT4-8173 E8/C725 supportantes
450	595	368	368	368					BT4-8173 E81/C725 Bear
450	595	404	404	404					BT4B 328365 EX/C725 Ferens
450	595	368	368	368					BT4B 332773 E/C725 Ferens
457.2	596.9	276.225	279.4	279.4					331169 BG Ferens
457.2	596.9	276.225	279.4	279.4					331169 E/C500 Bear
457.2	606	381	381	381					BT4-8125 E1/C725 E1
457.2	596.9	276.225	279.4	279.4					BT4B 328827 ABG/HA1VA902 Ferens
460	610	360	360	360					BT4-8111 E2/C725 supportantes
460	610	360	360	360					BT4B 331977 E/C725 Bear

Basic dimensiones				Basic onus rating		Celeritas ratings		Mass	Exemplar
Basic dimensiones				dynamic	static	Reference celeritas	Limitandi celeritas	Mass	Ferens No.
d [mm]	D [mm]	B [mm]	T [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]	Ferens No.
460	625	421	421	421					BT4B 332502/HA1 Ferens
475	600	368	368	368					BT4B 328913 BG/HA1C555 Ferens
479.425	679.45	495.3	495.3	495.3					330886 B Ferens
482.6	615.95	330.2	330.2	330.2					332096 E/C725 Ferens
482.6	615.95	330.2	330.2	330.2					BT4-8163 E8/C725 supportantes
482.6	615.95	330.2	330.2	330.2					BT4-8163 E81/C725 Bear
482.6	615.95	330.2	330.2	330.2					BT4-8163 E8A/C725 Bear
482.6	615.95	330.2	330.2	330.2					BT4B 328842 E1/C325 Bear
482.6	647.7	417.512	417.512	417.512					BT4B 331259 BG/HA1C325 Ferens
489.026	634.873	320.675	320.675	320.675					331090 E/C700 Bear
490	625	385	385	385					BT4-8135 E/C750 Ferens
500	670	400.05	387.35	387.35					BT4-8056 G/HA1 Ferens
501.65	711.2	520.7	520.7	520.7					331081 A Bear
510	655	377	379	379					BT4-8167 E8/C775 supportantes
510	655	377	379	379					BT4-8167 E81/C775 Ferens
520.7	736.6	400.05	400.05	400.05					BT4B 331243 A/HA1 Ferens
530	680	440	440	440					BT4-8043 G/HA1 Ferens
540	690	400	400	400					331978 BG Ferens
540	690	400	400	400					BT4-8108 E/C625 Ferens
558.8	736.6	322.265	322.268	322.268					331165 A Bear
558.8	736.6	322.265	322.268	322.268					331165 AG Ferens
558.8	736.6	455.612	457.2	457.2					BT4-8022 G/HA1VA919 Ferens
558.8	736.6	409.575	409.575	409.575					BT4B 330993 AG/HA1 Ferens
558.8	736.6	409.575	409.575	409.575					BT4B 334080 G/HA1VA901 Ferens
560	700	405	405	405					BT4-8153 E/C775 Ferens
560	920	618	618	618					BT4B 328509/HA4 Ferens
571.5	812.8	593.725	593.725	593.725					BT4B 332666/HA1 Ferens
584.2	762	396.875	401.638	401.638					331148 A Bearing
584.2	730.25	342.9	349.25	349.25					BT4B 331189 E/C600 Ferens
585.788	771.525	479.425	479.425	479.425					BT4B 328888 BG/HA1VA901 Ferens

Basic dimensiones				Basic onus rating		Celeritas ratings		Mass	Exemplar
Basic dimensiones				dynamic	static	Reference celeritas	Limitandi celeritas	Mass	Ferens No.
d [mm]	D [mm]	B [mm]	T [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]	Ferens No.
585.788	771.525	479.425	479.425	479.425					BT4B 331093 BG/HA1 Ferens
595.312	844.55	615.95	615.95	615.95					BT4B 331300 E/C775 Ferens
603.25	857.25	622.3	622.3	622.3					331625 supportantes
603.25	857.25	622.3	622.3	622.3					BT4B 331625 E/C800 Ferens
609.6	787.4	361.95	361.95	361.95					331175 A Bear
609.6	787.4	361.95	361.95	361.95					331175 BG/C355 Ferens
609.6	813.562	479.425	479.425	479.425					331925 supportantes
609.6	787.4	361.95	361.95	361.95					BT4B 328871 G/HA1VA901 Ferens
620	800	363.5	363.5	363.5					BT4B 328510/HA1 Ferens
625	815	480	480	480					BT4-8031 E/C800 Ferens
625	815	600	600	600					BT4-8137 G/HA1 Ferens
650	1030	560	560	560					BT4B 332827 AG/HA1 Ferens
660	1070	648.002	648.002	648.002					BT4B 332833 G/HA4 Ferens
660.4	812.8	365.125	365.125	365.125					331190 supportantes
660.4	812.8	365.125	365.125	365.125					BT4B 331190 BG/HA1 Ferens
676	910	620	620	620					BT4B 332906/HA4 Ferens
679.45	901.7	552.45	552.45	552.45					BT4B 334015 BG/HA1VA901 Ferens
679.45	901.7	635	542.45	542.45					BT4B 334016 AG/HA1VA901 Ferens
680	930	700	700	700					BT4B 328349/HA1 Ferens
685.8	876.3	352.425	355.6	355.6					BT4B 328955 ABG/HA1VA902 Ferens
685.8	876	352.425	355.6	355.6					BT4B 331089 CG/HA1 Ferens
708.025	930.275	565.15	565.15	565.15					BT4-8109 E1/C800
708.025	930.275	565.15	565.15	565.15					BT4B 332098 A/HA4 Ferens
710	900	410	410	410					331351 supportantes
710	900	410	410	410					BT4B 331351 BG/HA1 Ferens
710	900	410	410	410					BT4B 331351 E/C775 Ferens
711.2	914.4	390	390	390					BT4-8139 G/HA1 Ferens
717.55	946.15	565.15	565.15	565.15					332244 supportantes
717.55	946.15	565.15	565.15	565.15					BT4-8069 G/HA1VA901 Ferens
730.25	1035.05	755.65	755.65	755.65					330803 A Bear

Basic dimensiones				Basic onus rating		Celeritas ratings		Mass	Exemplar
Basic dimensiones				dynamic	static	Reference celeritas	Limitandi celeritas	Mass	Ferens No.
d [mm]	D [mm]	B [mm]	T [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]	Ferens No.
750	950	410	410	410					BT4-8048 E/C725 Ferens
750	1130	690	690	690					BT4B 328376/HA4 Ferens
785	1010	600	600	600					BT4-8121 E/C600
825.5	1168.4	844.55	844.55	844.55					BT4B 331066 A/HA4 Ferens
863.6	1219.1	876.3	889	889					BT4B 330742 A/HA4 Ferens
863.6	1130.3	669.925	669.925	669.925					BT4B 331123 DG/HA1 Ferens
877.888	1220	844.55	844.55	844.55					BT4B 332981/HA4 Ferens
938.212	1270	825.5	825.5	825.5					330726 A Bearing
1001	1360	800	800	800					BT4B 334031 AG/HA4 Ferens
1001	1360	800	800	800					BT4B 334031/HA4C1800 supportantes
1070.001	1399.997	889.762	889.762	889.762					BT4B 328100/HA4 Ferens
1300	1720	840	840	840					BT4-8150 G/HA4 Ferens
287.5	440	330.3	284	284					BT4B 332997 B/HA1 Ferens
287.5	440	330.3	284	284					BT4B 332997/HA1 Ferens
368.294	523.875	411.162	366.712	366.712					BT4B 334056 B/HA1 Ferens
384.175	546.1	437.96	384.175	384.175					BT4B 334048/HA1 Ferens
391.071	550	428.625	384.175	384.175					BT4B 328305/HA1 Ferens
400	540	330	295	295					332297 Ferens
400	540	295	330	330					BT4-8050/HA1 Ferens
406.445	565.201	409.575	365.125	365.125					BT4B 332813 B/HA1C425 Ferens
415.925	590.55	479.96	419.1	419.1					BT4B 334047/HA1 Ferens
431.8	571.5	366.713	320.675	320.675					(CCCXXXI)CMXCIX supportantes
450	595	388	352	352					BT4-8053/HA1 Ferens
482.6	647.7	436.5	401.638	401.638					BT4-8052/HA1 Ferens
555.233	761.873	692.15	536.575	536.575					BT4B 334125/HA1 Ferens
770	1040	800	650	650					BT4B 334099/HA4 Ferens
872.769	1181.1	714.375	628.65	628.65					BT4B 332786/HA4 Ferens
872.847	1181.1	714.375	628.65	628.65					BT4B 328956/HA4 Ferens

Engineering the Future of Motion

About UKL

Founded in 2020, UKL Bearing Manufacturing Co., Ltd. (Wuxi) is China 331138 AG Four-Row Tapered Roller Bearing suppliers and OEM/ODM 331138 AG Four-Row Tapered Roller Bearing company, an integrated industrial and trading enterprise that focuses on precision manufacturing, combining R&D, production, and sales.
The company specializes in high-performance bearing solutions, providing technical support for global industries with exceptionally high demands for precision and reliability.

With more than 200 skilled professionals and a fully modernized production base, UKL’s facilities cover the entire manufacturing process — forging, annealing, turning, heat treatment, grinding, and automated assembly.
Leveraging over 15 years of OEM/ODM export experience, UKL responds quickly to customer needs, offering flexible and customized services for clients across Europe, Asia, Africa, and the Middle East.

Plus de Us Ukl Bearing Manufacturing Co.,Ltd

0+

annos

Industria Usus
0+

Exemplar diversitatis
0+

Numerus Employees
0

$

Annua export valorem

Testimonium Honoris

News

(LXXIII)CVI ferens Technical Deep Dive: Decoding in BECBP, BEP, BEGBM Suffixarum Codicum pro Optimal Electio
18 Jun, 2026
Quod (VII)CCCVI suffixum eliges? Pro summa celeritate applicationes generalissimas quaerunt 40° angulum contactum et praecisionem vexillum, 7306 BEP est electio defectus. Si vis adaptare u...

READ MORE
Cur NU 309 Cylindrica Rollerus Excelsus in Motor et Design Gearbox Ferens?
04 Jun, 2026
Key Takeaway: The NU 309 Bearing Excels as a Floating Bearing Motrices enim et gearbox designant ubi scapi expansio scelerisque cura critica est NU 309 afferens; certis...

READ MORE
Quomodo inaugurare 2206 AV Nilos Ring (Step-by-Step Guide)
28 May, 2026
Install cum aperto latere adversus ferentem Ut bene install the 2206 AV Nilos Ring, position it so the convex (open) side points towards the bearing raceway. Anulus sede...

READ MORE
Quomodo eligere ius angulari Contactum Ball Ferens pro High-Speed Applications?
21 May, 2026
Optimam volubilem partem eligens ad celeritatem machinationis rotationis altam requirit intelligentiam condiciones operandi, geometriae internae, et administrationem scelerisque. Inter exquisitas m...

READ MORE