Metric series Single-row tapered roller bearings

Metric 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


Dimensions							Basic load ratings		Designation		Mass	Limiting speeds
mm							kN		Current	Original	kg	r/min
d	D	T	B	C	rmin	r1min	Cr	Cor	Current	Original	kg	Grease	Oil
150	270	77	73	60	4	3	718	1200	32230	7530E	18.2	1200	1700
	320	114	108	90	5	4	1110	1580	32330	7630	37.1	950	1400
160	240	51	51	38	3	2.5	420	735	32032	2007132E	7.7	1200	1700
	340	75	68	58	5	4	765	960	30332	7332E	28.4	1000	1500
	340	121	114	95	5	4	1210	1770	32332	7632	48.3	950	1400
170	230	32	30	23	3	3	200	400	70DB170	－	3	1200	1700
	310	91	86	71	5	4	835	1320	32234	7534E	27.6	1000	1500
	360	80	72	62	5	4	950	1400	30334	7334E	35	950	1400
	360	127	120	100	5	4	975	1764	32334	7634	58.3	1000	1300
180	280	64	60	52	3	2.5	540	890	32036X2	2007136	13	1100	1600
	280	64	64	48	3	2.5	569	950	32036	2007136E	14	1100	1600
	320	57	52	43	5	4	610	912	30236	7236E	17.8	1000	1500
	320	91	86	71	5	4	998	1727	32236	7536E	29.8	950	1400
190	260	45	42	36	2.5	2	292	580	32938X2	2007938	6.52	1000	1400
	290	51	46	40	3	2.5	435	365	－	7138	10.5	1000	1500
	290	64	60	52	3	2.5	502	932	32038X2	2007138	14.2	950	1300
	290	64	64	48	3	2.5	520	950	32038	2007138E	15.6	950	1300
	340	97	92	75	5	4	1117	1919	32238	7538E	36.1	900	1300
200	280	51	48	41	3	2.5	345	710	32940X2	2007940	8.86	950	1300
	280	51	51	39	3	2.5	460	950	32940	2007940E	9.5	950	1300
	310	70	66	56	3	2.5	575	1120	32040X2	2007140	17.9	900	1200
	310	70	70	53	3	2.5	650	1300	32040	2007140E	18.9	900	1200
	360	64	58	48	5	4	765	1140	30240	7240E	25.4	900	1300
	360	104	98	82	5	4	1090	1750	32240	7540E	43.2	900	1300
205	485	117.5	100	75	4	4	1400	2020	30641	7841E	95	850	1200
210	420	90	81	67	6	5	1200	1800	－	7342X2	56	850	1200
220	300	51	48	41	3	2.5	425	855	32944X2	2007944	10.2	900	1200


Dimensions							Basic load		Designation		Mass	Limiting
Dimensions							ratings		Designation		Mass	speeds
mm							kN		Current code	Original code	kg	r/min
d	D	T	B	C	rmin	r1min	Cr	Cor	Current code	Original code	kg	fat	oil
220	340	76	72	62	4	3	702	1330	32044X2	2007144	22.2	800	1000
	340	76	76	57	4	3	750	1350	32044	2007144E	24.4	800	1000
	400	72	65	54	4	3	810	1150	30244X2	7244	35.4	850	1200
	400	114	108	90	4	3	1320	2210	32244	7544E	48.1	800	1100
240	320	51	48	41	3	2.5	390	860	32948X2	2007948	10.8	800	1000
	360	76	72	62	4	3	710	1420	32048X2	2007148	23.8	700	900
	360	76	76	57	4	3	850	1560	32048	2007148E	20.4	700	900
	440	127	120	100	4	4	1630	2730	32248	7548	81.3	750	1000
260	360	63.5	60	52	3	2.5	525	1150	32952X2	2007952	19.2	700	900
	360	63.5	63.5	48	3	2.5	550	1300	32952	2007952E	20	700	900
	400	87	82	71	5	4	902	1810	32052X2	2007152	36.9	670	850
	400	87	87	65	5	4	1010	1850	32052	2007152E	37	670	850
	540	114	102	85	6	6	2014	2898	30352X2	7352	111	670	900
270	420	87	87	65	5	4	1150	2060	32054	2007154	45	600	750
280	350	36	33	26	2	2	279	469	30656	1007856	6.33	870	1100
	380	63.5	63.5	48	3	2.5	635	1300	32956	2007956E	19.8	800	1100
	420	87	82	71	5	4	622	1940	32056X2	2007156	39.6	600	750
	420	87	87	65	5	4	1170	2230	32056	2007156E	40.4	600	750
300	420	76	76	57	4	3	998	2128	32960	2007960E	28.7	700	950
	440	73	70	55	4	3	959	2062	30660	7860	30.7	570	600
	460	100	95	82	5	4	1050	2190	32060X2	2007160	55.9	560	700
	500	95	90	70	4	4	1225	2207	31160X2	1007760	67.7	530	670
320	440	76	72	62	4	3	1040	2320	32964X2	2007964	44.7	560	700
	440	76	76	57	4	3	962	2040	32964	2007964E	33	560	700
	480	100	95	82	5	4	1050	2190	32064X2	2007164	59	530	670
	480	100	100	74	5	4	1649	3192	32064	2007164E	60	530	670
	580	110	105	80	6	6	2100	3100	-	7264	114	480	600


Dimensions							Basic load		Designation		Mass	Limiting
Dimensions							ratings		Designation		Mass	speeds
mm							kN		Current	Original	kg	r/min
d	D	T	B	C	rmin	r1min	Cr	Cor				Grease	Oil
340	460	76	72	62	4	3	611	1428	32968X2	2007968	34.3	530	670
	520	86	82	64	4	4	807	1540	32068X2	7168	57	500	630
	520	112	106	92	6	6	1500	3000	32068	-	86.5	500	630
	580	106	102	87	6	5	1000	2100	-	7768	109	480	600
360	480	76	72	62	4	3	634	1526	32972X2	2007972	35.9	500	630
	540	86	82	64	4	4	919	1848	31072X2	7172	60.5	480	600
	650	170	155	140	5	6	1500	2700	32272	-	175	380	480
380	520	66.5	65	46.5	3	3	529	1138	31976X2	1007976	37.5	480	600
	520	87	82	71	5	4	800	1600	32976X2	2007976	42.7	480	600
	620	112	106	76	4	4	909	1708	31176X2	1007776	114	400	500
400	500	60	57	47	4	3	665	775	-	7880	45.7	450	530
	540	70	65	51	3	3	850	1500	31980X2	-	43.2	450	530
	540	87	82	71	5	4	1130	2760	32980X2	2007980	57	450	530
	600	95	90	67	4	4	1040	2128	31080X2	7180	84	400	500
420	560	70	65	51	3	3	630	1383	31984X2	1007984	42.4	400	500
	560	87	82	72	5	4	1250	2870	32984X2	2007984	46	400	500
	560	87	87	67	5	4	1250	2870	R420-5	-	47	400	500
	620	95	90	70	4	4	1132	2422	31084X2	7184	88	380	480
	700	130	122	92	6	6	1620	2800	31184X2	1007784	183	310	420
440	650	96.4	94	67	6	4	1193	2422	31088X2	7188	99	360	450
460	620	80	74	58	3	3	836	1834	31992X2	1007992	59.8	380	480
	680	105	100	78	6	6	1680	3550	31092X2	7192	118	330	450
480	650	84.2	78	60	4	4	854	1918	31996X2	1007996	71	340	430
500	720	110	100	82	6	6	1459	3192	310/500X2	71/500	135	280	360
530	710	88	82	62	4	4	1001	2380	319/530X2	10079/530	94.8	280	360
560	750	92.5	85	64	4	4	1001	2576	319/560X2	10079/560	104	240	320
	820	121	115	84	6	6	1887	4046	310/560X2	71/560	191	220	300
600	870	124	118	89	6	6	2020	4438	310/600X2	71/600	235	180	240


Dimensions							Basic load		Designation		Mass	Limiting
Dimensions							ratings		Designation		Mass	speeds
mm							kN		Current	Original	kg	r/min
d	D	T	B	C	rmin	r1min	Cr	Cor				Grease	Oil
630	920	135	128	94	7.5	7.5	2315	5222	310/630X2	71/630	278	170	220
710	950	114	106	80	6	6	1765	4494	319/710X2	10079/710	210	150	190
760	890	78	75	56	6	6	1510	1960	-	78/760	78.3	280	380
800	1060	122	115	89	6	6	2132	5530	319/800X2	10079/800	275	130	170
	980	57	57	47	4	4	1150	3170	-	70678/800	97	280	380
900	1180	124	122	87	6	6	2173	5782	319/900X2	10079/900	330	95	130
	1280	190	170	135	7.5	7.5	5615	13913	320/900X2	71/900	703	95	130
950	1250	140	132	100	7.5	7.5	3930	10427	319/950X2	10079/950	428	80	100

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.

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