Tapered Roller Bearing, buy 30202 A 30302 A 30203 A 30303 A 32004 A 30204 A 32204 A 30304 A 32304 A, Taper Roller Bearings on China Suppliers Mobile

Product Details

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	Principal dimensions			Load ratings		Speed limits		Weight			Dimensions		Calculation factors
Part number	Bore	Outer	Width	Dynamic	Static	Grease	Oil	Weight	B	C	Dimensions		Calculation factors
	d	D	T	C	Co	rpm		Kg			r1/r2	r3/r4	r5	a	e	Y	Yo
	mm			kN		1 min−1		Kg			mm		mm
30202A	15	35	11,75	15,8	14,4			0,053	11	10	0,6	0,6
30302A	15	42	14,25	23,9	21,6	9000	13000	0,09	13	11	1	1	0,3	9	0,28	2,1	1,1
30203A	17	40	13,25	21,2	21,3	9000	13000	0,08	12	11	1	1	0,3	10	0,35	1,7	0,9
30303A	17	47	15,25	29,7	27,2	8500	12000	0,13	14	12	1	1	0,3	10	0,28	2,1	1,1
32004A	20	42	15	26,3	30	8500	12000	0,097	15	12	0,6	0,6	0,3	10	0,37	1,6	0,9
30204A	20	47	15,25	28,2	30,6	8000	11000	0,12	14	12	1	1	0,3	11	0,35	1,7	0,9
32204A	20	47	19,25	37	40,6			0,161	18	15	1	1
30304A	20	52	16,25	34,7	33,2	8000	11000	0,17	15	13	1,5	1,5	0,6	11	0,3	2	1,1
32304A	20	52	22,25	44,6	46,3	7500	10000	0,221	21	18	1,5	1,5	0,6	14	0,3	2	1,1

etails part number:

- Sufﬁx A:

increased load capacity

Single row tapered roller bearings can be supplied matched in “DB” or “DF” arrangement. These matched bearings are manufactured so that, when mounted opposite each other, the pair should have an established initial axial clearance and a uniform distribution of the loading. Matched bearings are used when the load carrying capacity of a single bearing is insufﬁcient, or when the thrust loads have to be carried at a certain axial clearance in both directions.

Dimensions in accordance with ISO 355-2007

Tapered roller bearings are designed to take radial and thrust loads from one direction.

They consist of the inner race (cone), with cage guided rollers, and the outer race (cup).

The track has the same profile as the tapered rollers. The extension of the contact lines

meet at a common point on the bearing axis of rotation. The cone and cup are

seperable. By using two bearings as opposed mountings, they can carry thrust loadings

in both directions.

Single row tapered roller bearings can be supplied matched in “DB” or “DF”

arrangement. These matched bearings are manufactured so that, when mounted

opposite each other, the pair should have an established initial axial clearance and a

uniform distribution of the loading. Matched bearings are used when the load carrying

capacity of a single bearing is insufficient, or when the thrust loads have to be carried at

a certain axial clearance in both directions.

Dimensions in accordance with ISO 355-2007

Axial clearance

The axial clearance of single tapered roller bearings is adjusted on assembly. With matched bearings, as with double and 4 row bearings,

axial clearance is achieved by the addition of spacer rings ground to give the required clearance. Radial clearances for double

and four row tapered roller bearings are shown in the technical section. The radial clearance is transformed into axial clearance by the

following relation:

Axial clearance = Radial clearance / 2 tan a

a = contact angle between rollers and the outer ring raceway