Koyo 3780/20 3780/3720 Taper Roller Bearings

Prod Model:	3780/20
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Delivery Time:	Stock
Type:	Wheel Hub Bearing
Material:	Chrome Steel
Tolerance:	P5
Certification:	QS9000
Clearance:	C3
Brand:	Ikc SKF NSK NTN Koyo NACHI Timken

Product Description

The Description of Tapered Roller Bearing
Tapered roller bearing main bear with radial primarily, the axial union load. Bearing outer ring rolling bearing capacity depends on the way Angle, the greater the carrying capacity of the larger Angle. This type of bearings is bearing separation, according to the bearing of the roller column number into a single, double row and four row circular cone roller bearings. The single row circular cone roller bearing clearance to users in the installation to adjust; Double row and four row circular cone roller bearings clearance has set up a file in the products based on user requirements given, don't need to adjust by the user.

Tapered roller bearings taper inner ring and outer ring have groove, tapered roller are arranged in between. All of the surface of the cone of lines in the projection of bearing the same point axis together. This design make circular cone roller bearings is especially suitable for bear composite (radial and axial) the load. The bearing axial load ability is the contact Angle α Of the decision; Larger Angle α , axial load capacity is higher. Angle size by calculating coefficient e to say; E value is, the bigger the contact Angle is, the bigger the axial load bearing of the greater the applicability.

Tapered roller bearings are usually separated model, namely the belt roller and maintains a component of the inner circle, circle of inner cone components and cone outside (outer) can apart installation.

Tapered roller bearings widely used in automotive, rolling mill, mining, metallurgical, plastic machinery, etc.

Designations cone/cup	Boundary dimensions[mm]			Load ratings [kN]		Fatingue load[kN]	Speed ratings [rpm]		Calculation factors
	d mm	D	T	Dynmic Cr	stat Cor	B	C	r1.2 min	r3.4 min	a	da max mm	db min	Da min	Da max	Db min	Cb min	Ca min	ra max	rb max	e	Y	YO
K-25590/K-25520	45.6181.7960	82.931	23.812	80.9	0.55	25500	62.1	25.4	19.05	3.5	2.3	17	53	57.5	71	76	76	5	4.5	3	0.6	0.33	1.8	1
		3.265	0.9375					1	0.75	0.14	0.03
K-25590/K-25523		82.931	26.988	80.9	106	25500	62.1	25.4	22.225	3.5	2.3	20	53	57.5	70	73	76	3	4.5	3	2	0.33	1.8	1
		3.265	1.0625					1	0.875	0.14	0.09
K-25590/K-255222		83.058	23.876	80.9	106	25500	62.1	25.4	19.114	3.5	2	17	53	57.5	71	74	76	5	4.5	3	1.5	0.33	1.8	1
		3.27	0.94					1	0.7525	0.14	0.08
K-LM503349/K-LM503310	45.9871.8105	74.976	18	50.1	0.31	LM503300	60.4	18	14	2.3	1.5	16	53	55.5	67	67	91	2	4	2	1	0.4	1.5	0.8
		2.9518	0.7087					0.7087	0.5512	0.09	0.06
K-HM204049/K-HM204010		90.975	32	121	156	HM204000	67.1	32	26.5	3.5	3.5	21	55	58.5	78	78.5	86	5	5.5	3	3	0.33	1.8	1
		3.5817	1.2598					1.2598	1.0433	0.14	0.14
K-18690/K-18620	46.0381.8125	79.375	17.462	49.5	0.33	18600	60.3	17.462	13.495	2.8	1.5	15	53	56.5	69	71.5	73	3	3.5	2.5	1	0.37	1.6	0.9
		3.125	0.6875					0.6875	0.5311	0.11	0.06
K-359S/K-354X	46.0381.8125	85	20.638	70.4	0.49	355	62.4	21.692	17.462	2.3	1.5	16	55	56	76	77	80	3	3	2	1	0.31	1.9	1.1
		3.3465	0.8125					0.854	0.6875	0.09	0.06
K-386A/K-382A	47.6251.8750	96.838	21	80.9	0.73	385	74.1	21.946	15.875	0.8	0.8	18	65	54.5	87	89.5	91	5	5	0.6	0.6	0.35	1.7	0.9
		3.8125	0.8268					0.864	0.625	0.03	0.03
K-528/K-522		101.6	34.925	151	190	525	72.9	36.068	26.988	3.5	3.3	22	61	60	87	89.5	94	6	7.5	3	3	0.28	2.1	1.1
		4	1.375					1.42	1.0625	0.14	0.13
K-528R/K-522		101.6	34.925	151	190	525	72.9	36.068	26.988	8	3.3	22	61	69	87	89.5	94	6	7.5	7	3	0.28	2.1	1.1
		4	1.375					1.42	1.0625	0.31	0.13
K-55187/K-55437		111.125	30.162	95.5	114	55000	82.8	26.909	20.638	0.35	3.3	36	64	60.5	82	99	103	4	9.5	3	3	0.88	0.68	0.1
		4.375	1.875					1.0594	0.8125	0.14	0.13
K-55187/K-55443		112.712	30.162	95.2	114	55000	82.8	26.909	20.638	3.5	3.3	36	64	60.5	82	100.5	103	4	9.5	3	3	0.88	0.68	0.1
		4.4375	1.1875					1.0594	0.8125	0.14	0.13
K-5395/K-5335	49.2121.9375	103.188	43.658	176	1.75	5300	75.3	44.475	36.512	3.5	3.3	28	61	62	85	91	96	6	7	3	3	0.3	2	1.1
		4.0625	1.7188					1.751	1.4375	0.14	0.13
K-HM807044/K-HM807010		104.775	36.512	145	204	HM808000	81	36.512	28.575	3.5	3.3	28	63	62	85	92.5	100	6	7.5	3	3	0.48	1.25	0.7
		4.125	1.4375					1.4375	1.125	0.14	0.13
K-18790/K-18720	50.8002.0000	85	17.462	50.1	0.37	18700	66	17.462	13.495	3.5	1.5	16	59	63	75	77	79	3	3.5	3	1	0.4	1.5	0.8
		3.3465	0.6875					0.6875	0.5313	0.14	0.06
K-368A/K-3622A		88.9	20.638	76.5	91.5	365	66.2	22.225	16.513	3.5	1.3	16	58	63	80	81	83	4	4	3	1	0.31	1.9	1.1
		3.5	0.8125					0.875	0.6501	0.14	0.05
K-368A/K-3622X		90	25	76.5	91.5	365	66.2	22.225	20	3.5	2	21	58	63	78	77.5	83	3	5	3	1.5	0.31	1.9	1.1
		3.5433	0.9843					0.875	0.7874	0.14	0.08
K-28520/K-28521		92.075	24.608	85.8	118	28500	72.1	25.4	19.854	3.5	0.8	20	61	63	79	85	86	5	4.5	3	0.6	0.37	1.6	0.9
		3.625	0.9688					1	0.7813	0.14	0.03
K-3780/K-3720		93.264	30.162	110	146	3700	71.2	30.302	23.812	3.5	3.3	22	60	63	80	81.5	87	4	6	3	3	0.33	1.8	1
		3.6718	1.1875					1.193	0.9375	0.14	0.13
K-33890/K-33882		95.25	27.783	105	137	33800	72.3	28.575	22.225	3.5	0.8	20	61	63.5	83	88	90	6	5.5	3	0.6	0.33	1.8	1
		3.75	1.0938					1.125	0.875	0.14	0.03
K-28678/K-28622		97.63	24.608	89.7	129	28600	76.7	24.608	19.446	3.5	0.8	21	66	63.5	84	90.5	91	4	5	3	0.6	0.4	1.5	0.8
		3.8437	0.9688					0.9688	0.7656	0.14	0.03