31300 Series

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Technical diameters
Description

select	Inquiry	Designation	Principal dimensions（mm）			Basic load ratings（KN）		Pu	Speed ratings（rpm）		Weight(Kg)	ISO335	Dimensions （mm）							Abutment and fillet dimensions （mm）									Value
select	Inquiry	Designation	d1	D	B	dyc(Cr)	stc(Cor)	Pu	Speed Ratings	Limiting Speed	Weight(Kg)	Dimensions (ABMA)	d	d1～	B	C	r1,2(min)	r3,4(min)	a	da(max)	db(min)	Da(min)	Da(max)	Db(min)	Ca(min)	Cb(min)	ra(max)	rb(max)	e	Y	Yo
		31305J2	25	62	18,25	38	40	4,4	7500	11000	0,26	7FB	25	45,8	17	13	1,5	1,5	20	34	32	47	55	59	3	5	1,5	1,5	0,83	0,72	0,4
		31306J2/Q	30	72	20,75	55	50	5,7	7500	9500	0,39	7FB	30	52,7	19	14	1,5	1,5	22	40	37	55	65	68	3	6,5	1,5	1,5	0,83	0,72	0,4
		31307J2/Q	35	80	22,75	71	67	7,8	6300	8500	0,52	7FB	35	59,6	21	15	2	1,5	25	45	44	62	71	76	3	7,5	2	1,5	0,83	0,72	0,4
		31308J2/QCL7C	40	90	25,25	85	81,5	9,5	5600	7500	0,72	7FB	40	67,1	23	17	2	1,5	28	51	49	71	81	86	3	8	2	1,5	0,83	0,72	0,4
		31309J2/QCL7C	45	100	27,25	106	102	12,5	5000	6700	0,95	7FB	45	74,7	25	18	2	1,5	31	57	53	79	91	95	4	9	2	1,5	0,83	0,72	0,4
		31310J2/QCL7C	50	110	29,25	122	120	14,3	4500	6000	1,20	7FB	50	81,5	27	19	2,5	2	34	62	60	87	100	104	4	10	2	2	0,83	0,72	0,4
		31311J2/QCL7C	55	120	31,5	140	137	16,6	4300	5600	1,55	7FB	55	88,4	29	21	2,5	2	37	68	65	94	112	113	4	10,5	2	2	0,83	0,72	0,4
		31312J2/QCL7C	60	130	33,5	166	166	20,4	3800	5300	1,90	7FB	60	95,9	31	22	3	2,5	39	74	72	103	118	123	5	11,5	2,5	2	0,83	0,72	0,4
		31313J2/QCL7C	65	140	36	190	193	23,6	3600	4800	2,35	7GB	65	103	33	23	3	2,5	42	80	77	111	128	132	5	13	2,5	2	0,83	0,72	0,4
		31314J2/QCL7C	70	150	38	216	220	27	3400	4500	2,95	7GB	70	110	35	25	3	2,5	45	85	82	118	138	141	5	13	2,5	2	0,83	0,72	0,4
		31315J2/QCL7C	75	160	40	240	245	29	3200	4300	3,50	7GB	75	116	37	26	3	2,5	48	91	87	127	148	151	6	14	2,5	2	0,83	0,72	0,4
		31316J1/QCL7C	80	170	42,5	260	265	32	3000	4000	4,05	7GB	80	124	39	27	3	2,5	52	97	92	134	158	159	6	15,5	2,5	2	0,83	0,72	0,4
		31317J2	85	180	44,5	242	285	33,5	2600	3800	4,60	7GB	85	131	41	28	4	3	55	103	99	143	166	169	6	16,5	3	2,5	0,83	0,72	0,4
		31318J2	90	190	46,5	264	315	36,5	2400	3400	5,90	7GB	90	138	43	30	4	3	57	109	105	151	176	179	5	16,5	3	2,5	0,83	0,72	0,4
		31319J2	95	200	49,5	292	355	39	2400	3400	6,95	7GB	95	145	45	32	4	3	60	114	110	157	186	187	5	17,5	3	2,5	0,83	0,72	0,4
		31320XJ2/CL7CVQ051	100	215	56,5	430	465	51	2400	3000	8,60	7GB	100	158	51	35	4	3	65	121	115	168	201	202	7	21,5	3	2,5	0,83	0,72	0,4
		31322XJ2	110	240	63	457	585	62	1900	2800	12,0	7GB	110	176	57	38	4	3	72	135	125	188	226	224	7	25	3	2,5	0,83	0,72	0,4
		31324XJ2	120	260	68	539	695	73,5	1700	2400	15,5	7GB	120	190	62	42	4	3	78	145	135	203	245	244	9	26	3	2,5	0,83	0,72	0,4
		31326XJ2	130	280	72	605	780	81,5	1600	2400	18,5	7GB	130	204	66	44	5	4	84	157	150	218	263	261	8	28	4	3	0,83	0,72	0,4
		31328XJ2	140	300	77	693	900	88	1500	2200	24,5	7GB	140	219	70	47	5	4	90	169	160	235	283	280	9	30	4	3	0,83	0,72	0,4
		31330XJ2	150	320	82	781	1020	100	1400	2000	29,5	7GB	150	234	75	50	5	4	96	181	170	251	303	300	9	32	4	3	0,83	0,72	0,4

Features of Tapered Roller Bearings

Depending upon the application requirements taper roller bearings can come in different variants such as double row, four row, etc. The primary features of taper roller bearings are:

This variant of roller bearings can be customized to match specific speed, weight, temperature, etc.

The cup is made of the outer ring of the bearing and cone assembly includes inner ring, rollers and cage.

The design effectively helps combine two bearings for a higher impact on productivity.

The separable components ensure a safe mounting and unmounting.

Works well in high speed and high temperature applications.

Advantages of Tapered Roller Bearings

A rigid bearing application can be achieved by combining two tapered roller bearings and applying a preload making these highly customisable.

Amps up performance, reduces friction as well as increases power density simultaneously in applications.

The raceways make for smooth operations in high speed operations leading to low friction, less noise and vibration.

It has tenacity to function even under difficult circumstances ensuring minimal downtime.

Manages heat well and works for a longer service time.

Low maintenance ensures that the resources are utilised for longer periods of time.

Applications of Tapered Roller Bearings

Effective for various rolling mill functions

Also useful in work roll operations as well as mining units.

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