Two row Tapered Roller Bearing/Chinese manufactory

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Tapered roller bearings

Tapered roller bearings consist of four interdependent components: the cone, or inner ring; the cup, or outer ring; the tapered rollers, or rolling elements; and the cage, or roller retainer. The taper angles allow the bearing to handle a combination of radial and thrust loads. The steeper the cup angle, the greater the ability of the tapered roller bearing to handle thrust loads.

Single-Row Tapered Roller Bearings 

The most basic and widely used tapered bearing, the single-row type consists of the cone assembly and the cup. It is usually fitted as one of an opposing pair. During equipment assembly, single-row bearings can be set to the required clearance (endplay) or preload condition to optimize performance.

Single-row tapered roller bearings have positive roller alignment that ensures true rolling motion and generates a “seating force” that pushes the roller against the cone large rib. This seating force prevents the rollers from skewing off apex, thereby keeping them positively aligned and located against the cone large rib.

Double-Row Tapered Roller Bearings 

Double- or two-row tapered roller bearings feature double cups and two single cones. They are available in a variety of configurations for general industrial and automotive applications.

Four-Row Tapered Roller Bearings 

Four-row bearings provide maximum capacity in minimum space, combining the inherent high-load, radial/thrust capacity and direct/indirect mounting variables of tapered roller bearings.

Their main application is on the roll necks of rolling mill equipment.  All four-row bearings are supplied as pre-set matched assemblies with all components identified to ensure correct installation sequence.

Product Information

Boundary Dimenssion           (mm)							Mass (KG)	Bearing Numbers	Basic Load Ratings(KN)		Limited Speed(rpm)
d	D	T	B	C	r1min	rsmin	approx		Cr	Cor	Grease	Oil
15	42	14.25	13	11.0	1.0	1.0	0.098	30302	20.88	19.97	9400	12000
17	40	13.25	12	11.0	1.0	1.0	0.079	30203	18.45	19.49	9400	12000
	47	15.25	14	12.0	1.0	1.0	0.134	30303	26.01	25.25	8600	11000
20	42	15	15	12.0	0.6	0.6	0.097	32004X	22.41	26.78	9000	12000
	47	15.25	14	12.0	1.0	1.0	0.127	30204	25.38	27.55	8400	11000
	47	19.25	18	15.0	1.0	1.0	0.16	32204	32.85	37.92	8400	11000
	52	16.25	15	13.0	1.5	1.5	0.172	30304	31.95	32.64	7600	10000
	52	22.25	21	18.0	1.5	1.5	0.241	32304	41.85	46.56	7600	10000
25	47	15	15	11.5	0.6	0.6	0.116	32005X	25.02	32.16	7500	10000
	52	16.25	15	13.0	1.0	1.0	0.157	30205	28.35	32.64	6900	9300
	52	19.25	18	15.0	1.0	1.0	0.187	32205	37.8	45.12	6900	9300
	52	22	22	18.0	1.0	1.0	0.221	33205	42.75	55.2	6900	9300
	62	18.25	17	15.0	1.5	1.5	0.27	30305	43.65	45.6	6400	8400
	62	25.25	24	20.0	1.5	1.5	0.376	32305	55.62	61.92	6400	8400
30	55	17	17	13.0	1.0	1.0	0.172	32006X	33.75	44.16	6600	8700
	62	17.25	16	14.0	1.0	1.0	0.238	30206	39.15	46.08	6000	7900
	62	21.25	20	17.0	1.0	1.0	0.297	32206	49.05	61.44	6000	7900
	62	25	25	19.5	1.0	1.0	0.355	33206	58.5	73.92	6000	7900
	72	20.75	19	16.0	1.5	1.5	0.403	30306	54	58.56	5400	7200
	72	28.75	27	23.0	1.5	1.5	0.57	32306	72.9	86.4	5400	7200
35	62	18	18	14.0	1.0	1.0	0.23	32007X	37.35	50.4	5800	7700
	72	18.25	17	15.0	1.5	1.5	0.34	30207	49.95	59.04	5200	7000
	72	24.25	23	19.0	1.5	1.5	0.456	32207	65.25	83.52	5200	7000
	72	28	28	22.0	1.5	1.5	0.54	33207	78.75	104.64	5200	7000
	80	22.75	21	18.0	2.0	1.5	0.538	30307	67.5	73.92	4800	6300
	80	32.75	31	25.0	2.0	1.5	0.765	32307	90.9	110.4	4800	6300

Model Specification

30204 Tapered Roller Bearing
Size	20*47*14
Brand Name:	TIANHE
Quality Standard:	ISO9001:2000 Standard
Features:	1)Tolerance :           ABEC-1,ABEC-3,ABEC-5, ABEC-7
	2)Vibration Level :   V4,V3,V2,V1
	3)Cage:                     Brass,Nylon
	4)Hardness :             59-63 HRC
Application:	Auto,tractor,machine tool,electric machine,water pump,agricultural machinery and texile machinery etc
Technology&QC Process:	1.Assembly                                                                                           2.Windage test                                                                                               3.Cleaning                                                                                                           4.Rotary Test                                                                                                             5. Greasing and gland                                                                                             6. Noise Inspection                                                                                       7.Appearance Inspection                                                                                             8. Rust Prevention                                                                                                     9.Product Packaging
Service:	We will follow up on our customers' feedback and suggestions after every delivery and we make every effort to solve their problems in order to ensure their total satisfaction.

Photos of  the same type bearings

Pakage Details

Two row Tapered Roller Bearing/Chinese manufactory