30214 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
40	68	19.00	19	14.50	1.0	1.0	0.280	32008x	45.00	62.88	5000	6700
	68	22.00	22	18.00	1.0	1.0	0.322	33008	53.55	79.20	5000	6700
	80	19.75	18	16.00	1.5	1.5	0.438	30208	54.90	64.32	4700	6300
	80	24.75	23	19.00	1.5	1.5	0.549	32208	71.55	89.76	4700	6300
	80	32.00	32	25.00	1.5	1.5	0.744	33208	92.70	126.72	4700	6300
	90	25.25	23	20.00	2.0	1.5	0.758	30308	82.35	97.92	4200	5600
	90	35.25	33	27.00	2.0	1.5	1.050	32308	109.80	144.00	4200	5600
45	75	20.00	20	15.50	1.0	1.0	0.354	32009x	51.75	73.44	4600	6000
	75	24.00	24	19.00	1.0	1.0	0.414	33009	59.40	89.76	4600	6000
	80	26.00	26	20.50	1.5	1.5	0.552	33109	76.05	110.40	4500	5900
	85	20.75	19	16.00	1.5	1.5	0.488	30209	60.75	75.36	4200	5600
	85	27.75	23	19.00	1.5	1.5	0.602	32209	73.80	96.00	4200	5600
	85	32.00	32	25.00	1.5	1.5	0.817	33209	96.30	135.36	4200	5600
	100	27.25	25	22.00	2.0	1.5	1.010	30309	99.90	120.96	3800	5000
	100	38.25	36	30.00	2.0	1.5	1.420	32309	138.60	183.36	3800	5000
50	80	20.00	20	15.50	1.0	1.0	0.380	32010x	56.25	84.48	4200	5500
	80	24.00	24	19.00	1.0	1.0	0.452	33010	62.55	98.88	4200	5500
	85	26.00	26	20.00	1.5	1.5	0.597	33110	77.85	116.16	4000	5300
	90	21.75	20	17.00	1.5	1.5	0.558	30210	69.30	89.28	3800	5000
	90	24.75	23	19.00	1.5	1.5	0.644	32210	78.75	104.64	3800	5000
	90	32.00	32	24.50	1.5	1.5	0.867	33210	103.50	151.68	3800	5000
	110	29.25	27	23.00	2.5	2.0	1.280	30310	119.70	145.92	3400	4600
	110	42.25	40	33.00	2.5	2.0	1.880	32310	165.60	222.72	3400	4600
55	90	23.00	23	17.50	1.5	1.5	0.568	32011x	72.45	113.28	3800	5100
	90	27.00	27	21.00	1.5	1.5	0.657	33011	82.35	132.48	3800	5100
	95	30.00	30	23.00	1.5	1.5	0.877	33111	99.90	148.80	3700	4900
	100	22.75	21	18.00	2.0	1.5	0.736	30211	83.70	106.56	3400	4600
	100	26.75	25	21.00	2.0	1.5	0.860	32211	97.20	128.64	3400	4600
	100	35.00	35	27.00	2.0	1.5	1.180	33211	124.20	180.48	3400	4600
	120	31.50	29	25.00	2.5	2.0	1.630	30311	139.50	171.84	3100	4200
	120	45.50	43	35.00	2.5	2.0	2.390	32311	193.50	264.00	3100	4200

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

30214 Tapered Roller Bearing/Chinese manufactory