سری 31300-محصولات-HEBEI JITO Bearing CO., LTD.

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
d1	D	B	dyc(Cr)	stc(Cor)	Speed Ratings	Limiting Speed	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

Tapered roller bearings are separate bearings, and the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into different structural types such as single row, double row and four row tapered roller bearings according to the number of rows of rollers installed. Single row tapered roller bearings can withstand radial loads and axial loads in a single direction. When the bearing is subjected to a radial load, an axial component will be generated, so another bearing that can withstand the axial force in the opposite direction is needed to balance.

1. Taper Roller Bearing Application:

Tapered roller bearings are usually of a separate type, that is, a conical inner ring assembly consisting of an inner ring with a roller and a cage assembly can be mounted separately from the outer bevel (outer ring). Tapered roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastic machinery and other industries.

2. Tapered Roller Bearing Suffix definition:

A: Internal structure change

B: increased contact angle

X: The external dimensions are in accordance with international standards.

CD: Double outer ring with oil hole or oil groove.

TD: Double inner ring with tapered bore.

Tapered roller bearings are precision-engineered bearings designed to handle both radial and axial loads by utilizing tapered rolling elements. Here's a description of tapered roller bearings:

Tapered Design: Tapered roller bearings have cone-shaped rolling elements (called rollers) and raceways on the inner and outer rings, which are tapered in the shape of a truncated cone. The angle of the taper typically ranges between 10 and 30 degrees.
Single or Double Row: Tapered roller bearings can be configured as single-row bearings, where the rollers are arranged in a single row between an inner and outer ring, or as double-row bearings, which consist of two single-row assemblies mounted face-to-face or back-to-back.
High Load Capacity: Due to their tapered design and large contact area between the rollers and raceways, tapered roller bearings can support both radial and axial loads. The load-carrying capacity increases as the angle of the taper increases.
Axial and Radial Clearance Adjustment: Tapered roller bearings are capable of accommodating axial displacement of the shaft relative to the housing, allowing for axial clearance adjustment during installation or operation.
Efficient Transmission of Axial Loads: Tapered roller bearings are particularly suitable for applications where axial loads are present, such as in automotive wheel hubs, gearboxes, and heavy machinery.
Precision Tolerance and Consistency: Tapered roller bearings are manufactured to tight tolerances to ensure precise alignment of the rolling elements, minimizing friction and maximizing efficiency.
Lubrication and Sealing: Tapered roller bearings are often equipped with lubrication holes and grooves in the outer ring to facilitate the distribution of grease or oil. They can also be supplied with seals or shields to protect against contamination and retain lubricant.

Mounting and Disassembly: Tapered roller bearings can be mounted individually or in pairs using appropriate mounting methods, such as press fitting onto a shaft or housing. They can also be easily disassembled for maintenance or replacement.

Bearing Detail
Item No.	2780/2720
Bearing Type	Taper roller bearing (Inch)
Material	Chrome steel GCr15
Precision	P0,P2,P5,P6,P4
Clearance	C0,C2,C3,C4,C5
Bearing size	inner diameter 0-200mm, outer diameter 0-400mm
Cage type	Brass, steel, nylon, etc.
Ball Bearings Feature	Long-life with high quality
	Low-noise with strict controlling the quality of JITO bearing
	High-load by the advanced high-technical design
	Competitive price, which has the most valuable
	OEM service offered, to meet the customers requirements
Application	Automobiles, rolling mills, mining, metallurgy, plastic machinery and other industries
Bearing Package	Pallet,wooden case,commercial packaging or as customers' requirement

Packaging & Delivery:

Packaging Details: Standard exporting packing or according to the customer's requirements

Package Type:	A. Plastic tubes Pack + Carton + Wooden Pallet
	B. Roll Pack + Carton + Wooden Pallet
	C. Individual Box +Plastic bag+ Carton + Wooden Pallet

Lead Time :
Quantity(Pieces)	1 - 300	>300
Est. Time(days)	2	To be negotiated

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