Inch series Single-row tapered roller bearings

Inch series Single-row tapered roller bearings

Single row tapered roller bearings are used to carry radial load mainly and axial load. The large cone angle tapered roller bearings (22 ° ~ 31 °) carry combined axial and radial loads mainly subject to axial load, and are generally used for pure axial load.

Single row tapered roller bearings are mostly used for automobile rear axle hub, large machine tool spindle, high power reducer, contact roller of conveying appliance, etc.

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Specifications

Inch series tapered roller bearings（Single-row）


Dimensions							Basic load ratings		Designations	Calculated constant	Load factors		Mass	Limiting speeds
mm							kN			e	Y	Y0	kg	r/min
d	D	T	B	C	r1、2min	r3、4min	Cr	Cor		e	Y	Y0	kg	fat	oil
152.400	222.250	46.830	46.83	34.925	3.5	1.5	330	630	M231649/M231610	0.33	1.8	1	5.80	1500	2000
	254.000	66.675	66.675	47.625	7.0	3.3	583	980	99600/99100	0.40	1.5	0.8	12.5	1300	1800
155.575	336.550	85.725	79.45	54.03	6.4	6.4	825	1200	BT1B328833	0.79	0.76	0.4	33.5	900	1300
158.750	205.583	23.812	23.812	18.258	4.8	1.5	138	280	L432348/L432310	0.37	1.6	0.9	1.90	1500	2000
	225.425	41.275	39.688	33.338	3.5	3.3	264	585	46780/46720	0.37	1.6	0.9	5.30	1400	1900
160	252.412	63.500	69.93	52.46	1.5	3.3	512	900	BT1B443924	0.26	2.3	1.3	11.7	1300	1800
165.100	225.425	41.275	39.688	33.338	3.5	3.3	264	585	46790/46720	0.37	1.6	0.9	4.75	1400	1900
	336.500	92.075	92.25	69.85	3.3	6.4	1120	1700	HH437549/HH437510	0.37	1.6	0.9	37.0	950	1400
177.800	227.012	30.162	30.162	23.02	1.5	1.5	187	425	36990/36920	0.44	1.35	-	2.95	1300	1800
	260.350	53.975	53.975	41.275	3.5	3.3	484	900	M236849/M236810	0.33	1.8	1	9.35	1200	1700
178.595	265.112	51.595	57.15	38.895	3.3	3.3	495	880	M336948/M336912	0.33	1.8	1	9.60	1200	1700
179.934	265.112	51.595	57.15	38.895	3.3	3.3	495	880	M336949/M336912	0.33	1.8	1	9.40	1200	1700
184.150	266.700	47.625	46.833	38.1	3.5	3.3	374	800	67883/67820	0.48	1.25	0.7	8.20	1100	1600
187.325	269.875	55.562	55.562	42.862	3.5	3.3	473	950	M238849/M238810	0.33	1.8	1	9.85	1100	1600
	282.575	50.800	47.625	36.512	3.5	3.3	402	695	87737/87111	0.43	1.4	0.8	9.80	1100	1600
189.738	279.400	52.388	57.15	41.275	3.3	3.3	523	980	M239447/M239410	0.33	1.8	1	11.0	1100	1600
190.475	279.400	52.388	57.15	41.275	3.3	3.3	523	980	M239449/M239410	0.33	1.8	1	11.0	1100	1600
190.500	266.700	47.625	46.833	38.1	3.5	3.3	374	800	67885/67820	0.48	1.25	0.7	8.20	1100	1600
	282.575	50.800	47.625	36.512	3.5	3.3	402	695	87750/87111	0.43	1.4	0.8	9.60	1100	1600
191.237	279.400	53.975	58.738	41.275	3.3	3.3	523	980	M239448A/M239410	0.33	1.8	1	10.5	1100	1600
196.850	257.175	39.688	39.688	30.162	3.5	3.3	275	655	LM739749/LM739710	0.44	1.35	0.8	5.40	1100	1600
200.025	276.225	42.862	46.038	34.133	3.5	3.3	391	780	LM241147/LM241110	0.31	1.9	1.1	7.70	1000	1500
203.200	261.142	28.575	27.783	21.433	1.5	1.5	216	440	LL641149/LL641110	0.40	1.5	0.8	3.75	1100	1600
	282.575	46.038	46.038	36.512	3.5	3.3	380	830	67983/67920	0.50	1.2	0.7	8.95	1000	1500
203.987	276.225	42.662	46.038	34.133	3.5	3.3	391	780	LM241148/LM241110	0.31	1.9	1.1	7.25	1000	1500


Dimensions							Basic load		Designations	Calculated constant	Load		Mass	Limiting
Dimensions							ratings			Calculated constant	factors		Mass	speeds
mm							kN			e	Y	Y0	kg	r/min
d	D	T	B	C	r1、2min	r3、4min	Cr	Cor		e	Y	Y0	kg	fat	oil
206.375	282.575	46.038	46.038	36.512	3.5	3.3	380	830	67985/67920	0.5	1.2	0.7	8.6	1000	1500
	336.55	98.425	100.012	77.788	3.3	3.3	1140	2160	H242649/H242610	0.33	1.8	1	34	900	1300
212.725	285.75	46.038	46.038	34.925	3.5	3.3	352	780	LM742745/LM742710	0.48	1.25	0.7	8	1000	1500
215.9	285.75	46.038	46.038	34.925	3.5	3.3	352	780	LM742749/LM742710	0.48	1.25	0.7	7.9	1000	1500
216.408	285.75	46.038	49.212	34.925	3.5	3.3	352	780	LM742747/LM742710	0.48	1.25	0.7	7.85	1000	1500
	285.75	46.038	49.29	35	3.5	3.3	330	695	BT1B443786AB	0.48	1.25	0.7	7.85	1000	1500
216.713	285.75	46.038	49.212	34.925	3.5	3.3	352	780	LM742747A/LM742710	0.48	1.25	0.7	7.8	1000	1500
220.116	317.5	47.625	52.338	36.512	3.3	3.3	523	980	LM245832/LM245810	0.31	1.9	1.1	12.5	900	1300
220.878	317.5	47.625	52.338	36.512	3.3	3.3	523	980	LM245833/LM245810	0.31	1.9	1.1	12.5	900	1300
230.188	317.5	47.625	52.338	36.512	3.3	3.3	523	980	LM245846/LM245810	0.31	1.9	1.1	11	900	1300
231.775	317.5	47.625	52.338	36.512	3.3	3.3	523	980	LM245848/LM245810	0.31	1.9	1.1	10.5	900	1300
247.65	406.4	115.888	117.475	93.662	6.4	6.4	1610	3150	HH249949/HH249910	0.33	1.8	1	60	800	1100
255.625	342.945	57.15	62.08	44.5	6.4	3.3	660	1400	BT1B417708	0.35	1.7	0.9	14	850	1200
257.175	342.9	57.15	57.15	44.45	6.4	3.3	660	1400	M349549/M349510	0.35	1.7	0.9	14	850	1200
263.525	325.438	28.575	28.575	25.4	1.5	1.5	220	550	38880/38820	0.37	1.6	0.9	53	900	1300
266.56	325.438	29.5	33.47	25.48	1	1.5	209	475	BT1B446356A	0.37	1.6	0.9	5.1	900	1300
266.7	325.438	27.755	31.88	25.48	1.5	1.5	209	475	BT1B443884AE	0.37	1.6	0.9	5.1	900	1300
	355.6	57.15	57.15	44.45	3.5	3.3	644	1400	LM451349/LM451310	0.35	1.7	0.9	15.5	850	1200
292.1	374.65	47.625	47.625	34.925	3.5	3.3	501	1140	L555249/L555210	0.4	1.5	0.8	12	800	1100
300	495.3	141.288	141.288	114.3	6.4	6.4	2330	4550	HH258248/HH258210	0.33	1.8	1	107	630	850
304.8	546.1	171.053	171.13	140.17	8	8	3030	5600	BT1B617089B	0.35	1.7	0.9	170	600	800
330.2	415.925	47.625	47.625	34.925	3.5	3.5	402	965	BT1B440009	0.5	1.2	0.7	14.3	700	950
	482.6	85.725	80.167	60.325	6.4	3.3	1210	2500	EE526130/526190	0.4	1.5	0.8	48.5	630	850
333.375	469.9	90.488	90.488	71.438	6.4	3.3	1340	2850	HM261049/HM261010	0.33	1.8	1	47	630	850


Dimensions							Basic load		Designations	Calculated constant	Load		Mass	Limiting
Dimensions							ratings			Calculated constant	factors		Mass	speeds
mm							kN			e	Y	Y0	kg	r/min
d	D	T	B	C	r1、2min	r3、4min	Cr	Cor		e	Y	Y0	kg	fat	oil
343.154	450.85	66.675	66.675	52.388	8.5	3.5	935	2200	LM361649A/LM361610	0.35	1.7	0.9	28	670	900
346.075	488.95	95.25	95.25	74.612	6.4	3.3	1420	3150	HM262749/HM262710	0.33	1.8	1	55	630	850
355.6	482.6	60.32	55.56	38.1	7	7	572	1200	431884A	0.48	1.25	0.7	26.5	630	850
380.1	480	50	48.08	35.08	6	4	594	1500	BT1B380-332420	0.5	1.2	0.7	20.5	600	800
384.175	546.1	104.775	104.775	82.55	6.4	6.4	1870	4150	HM266449/HM266410	0.33	1.8	1	77	560	750
403.225	460.375	28.575	28.575	20.638	3.5	3.3	246	765	LL566848/LL566810	0.4	1.5	0.8	6.7	600	800
406.4	508	61.912	61.912	47.625	3.3	3.3	825	2120	L467549/L467510	0.37	1.6	0.9	26.5	560	750
	574.675	76.2	67.866	50.8	6.8	3.3	935	2040	EE285160/285226	0.5	1.2	0.7	53.5	530	700
	762	180.975	161.925	107.95	12.7	12.7	3690	6100	H969249/H969210	0.94	0.64	0.35	320	380	500
415.925	590.55	114.3	114.3	88.9	6.4	6.4	2120	4800	M268749/M268710	0.33	1.8	1	120	500	670
430.212	603.25	76.2	73.025	50.8	6.4	6.4	1100	2320	EE241693/242375	0.52	1.15	0.6	59	500	670
431.8	571.5	89.694	89.77	66.75	6.4	6.4	1450	3450	BT1B328284/HA1	0.44	1.35	0.8	60	500	670
431.902	685.698	177.8	177.88	142.95	6.4	6.4	3910	8650	BT1B332900	0.48	1.25	0.7	253	430	560
447.675	635	120.65	120.65	95.25	6.4	6.4	2380	5500	M270749/M270710	0.33	1.8	1	120	450	600
457.2	573.088	74.612	74.612	57.15	6.4	6.4	1120	3000	L570649/L570610	0.4	1.5	0.8	43.5	500	670
	603.25	85.725	84.138	60.325	6.4	3.3	1450	3400	LM770949/LM770910	0.46	1.3	0.7	61.5	480	630
	615.95	85.725	85.725	66.675	6.4	6.4	1470	3800	LM272235/LM272210	0.33	1.8	1	72	450	600
	660.4	91.28	85.725	62.705	10.5	6.4	1790	3650	EE737181/737260/VQ601	0.37	1.6	0.9	91	450	600
479.425	679.45	128.588	128.66	101.68	6.4	6.4	2750	6300	BT1B332529/HA1	0.33	1.8	1	145	430	560
482.6	634.873	80.962	80.962	63.5	6.4	3.3	1470	3650	EE243190/243250	0.35	1.7	0.9	67.5	450	600
498.399	634.873	80.962	80.962	63.5	6.4	3.3	1470	3650	EE243196AX/243250	0.35	1.7	0.9	60	450	600
498.475	634.873	80.962	80.962	63.5	6.4	3.3	1470	3650	EE243196/243250	0.35	1.7	0.9	60	450	600
498.653	634.873	80.962	80.962	63.5	6.4	3.3	1470	3650	EE243196AS/243250	0.35	1.7	0.9	59.5	450	600
520.7	736.6	88.9	81.758	53.975	6.4	3.3	1650	3350	EE982051/982900	0.48	1.25	0.7	100	400	530


Dimensions							Basic load		Designations	Calculated constant	Load		Mass	Limiting
Dimensions							ratings			Calculated constant	factors		Mass	speeds
mm							kN			e	Y	Y0	kg	r/min
d	D	T	B	C	r1、2min	r3、4min	Cr	Cor		e	Y	Y0	kg	fat	oil
536.575	761.873	146.05	146.05	114.3	6.4	6.4	3360	8000	M276449/M276410	0.33	1.8	1	208	380	500
539.75	635	50.8	50.8	38.1	6.4	6.4	781	2160	LL575349/LL575310	0.4	1.5	0.8	27	430	560
549.275	692.15	80.963	80.963	61.913	6.4	6.4	825	2120	L476549/L476510	0.37	1.6	0.9	67	560	750
558.8	736.6	88.108	88.108	63.5	6.4	6.4	1830	4150	EE843220/843290	0.35	1.7	0.9	92.5	380	500
	736.6	104.775	104.775	80.962	6.4	6.4	2330	5700	LM377449/LM377410	0.35	1.7	0.9	115	380	500
607.72	787.4	93.662	93.662	69.85	6.4	6.4	2160	5300	EE649239/649310	0.37	1.6	0.9	110	340	450
609.6	787.4	93.662	93.662	69.85	6.4	6.4	2160	5300	EE649240/649310	0.37	1.6	0.9	110	340	450
	787.4	93.662	93.662	69.85	6.4	6.4	2160	5300	EE649240AX/649310	0.37	1.6	0.9	110	340	450
660.4	812.8	95.25	95.25	73.025	6.4	6.4	1940	5600	L281147/L281110	0.33	1.8	1	105	320	430
	939.8	136.525	127.08	98.5	6.4	6.4	3740	8150	332383	0.4	1.5	0.8	287	280	380
	1000	152.4	142.24	113.665	6.4	6.4	4400	9500	BT1B334140/HA4	0.43	1.4	0.8	410	260	360
679.45	901.7	142.875	142.875	111.125	9.7	6.4	3580	9000	LM281849/LM281810	0.33	1.8	1	242	280	380
682.625	965.2	185.738	185.81	142.95	6.4	6.4	5120	12500	332283	0.33	1.8	1	420	260	360
685.8	876.3	93.662	92.075	69.85	6.4	6.4	2120	5500	EE655270/655345	0.43	1.4	0.8	130	300	400
711.2	939.8	120.65	115.38	73.33	6.4	6.4	2640	6200	BT1B328068/HA4	0.75	0.8	0.45	206	240	340
723.9	914.4	84.138	80.962	60.325	5.5	6.4	2050	4900	EE755285/755360	0.37	1.6	0.9	115	280	380
736.6	825.5	31.75	31.75	25.4	3.5	3.3	429	1370	LL582949/LL582910B	0.4	1.5	0.8	22.5	300	400
759.925	889	69.85	69.85	50.8	3.3	3.3	1230	3800	LL483448/LL483418	0.37	1.6	0.9	67.5	280	380
	889	88.9	88.9	72	3.3	3.3	1940	6200	L183448/L183410	0.3	2	1.1	94	260	360
774.7	965.2	93.662	80.962	66.675	6.4	3.3	1940	4900	EE752305/752380	0.4	1.5	0.8	131	240	340
801.688	914.4	58.738	58.738	41.275	3.5	3.3	1100	3550	LL584449/LL584410	0.4	1.5	0.8	53.5	260	360
838.2	1041.4	93.662	88.9	66.675	6.4	6.4	1900	4800	EE763330/763410	0.44	1.35	0.8	160	220	320
857.25	1092.2	120.65	111.125	76.2	19	6.4	2810	7350	EE157337/157430	0.57	1.05	0.6	245	200	300
977.9	1130.3	66.675	63.5	47.625	6.4	6.4	1450	4400	LL687949/LL687910	0.44	1.35	0.8	100	180	260

Product introduction

(1) Single row tapered roller bearing

Single row tapered roller bearings can limit unidirectional axial displacement of the axes (or shells), therefore it used as unidirectional axial positioning bearings. They are separable bearings, and so inner and outer rings can be installed separately and outer rings are interchangeable. It is convenient to install and disassemble. During installing and using, radial and axial clearance can be adjusted arbitrarily, and the bearing rigidity can be increased by preloaded installing. The clearance of tapered roller bearing directly affects the bearing performance. If the clearance is too small, the temperature rise will be higher; if the clearance is too large, the vibration will increase and it will be difficult to guarantee the rotating accuracy. Therefore, in the process of installation and use, we should pay special attention to the reasonable adjustment of bearing clearance.

In order to prevent bearings from being damaged by stress concentration in the contact between roller and raceway, the shaft incline relative to the shell hole is not allowed during installation. Only when the roller and raceway generatrix are in contact with correction line, a micro inclination (≤ 2') is allowed. Because additional forces are produced under radial load, two sets of single row tapered roller bearings are generally installed in two supports of the shaft, which are installed face to face or back-to-back.

Single row tapered roller bearings are mostly used for automobile rear axle hub, large machine tool spindle, high power reducer, contact roller of conveying appliance, etc.

Products

+ Cylindrical roller bearings

+ Tapered roller bearings

+ Slewing bearings

+ Thin-Section bearings

+ Deep groove ball bearings

+ Angular contact ball bearings

+ Spherical roller bearings

+ Thrust ball bearings

+ Thrust roller bearing

+ Split bearing

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