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Double Row Taper Roller Bearing

Tapered roller bearings have tapered inner and outer ring raceways between which tapered rollers are arranged. The projection lines of all the tapered surfaces meet at a common point on the bearing axis. Their design makes tapered roller bearings particularly suitable for the accommodation of combined (radial and axial) loads. The axial load carrying capacity of the bearings is largely determined by the contact angle ; the larger contact angle the greater axial load carrying capacity .

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Tapered Roller Bearings

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Tapered Roller Bearings

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Double Row Taper Roller Bearing

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Product parameter：

Boundary Dimensions					Basic Load Rating		Limiting Speed(rpm)		Bearing Designation	Other dimension						Calculate coefficient				Mass
(mm)					(K N )		Grease	Oil		Other dimension						Calculate coefficient				(kg)
d	D	T	r3、4min	r5min	Cr	Cor	Grease	Oil		da(max)	Da(min)	Da(max)	Ca(min)	ra(max)	rb(max)	e	Y1	Y2	Y0	Approx
90	160	65	2	0.6	336	490	1700	2400	30218/DF	104	140	150	5	2	0.4	0.43	1.6	2.3	1.6	5.15
100	180	74	2.5	1	418	640	1600	2200	30220/DF	116	157	168	5	2	0.8	0.43	1.6	2.3	1.6	7.7
120	215	87	2.5	1	583	915	1300	1800	30224/DF	141	187	203	6	2	0.8	0.43	1.6	2.3	1.6	13
150	270	98	3	1	737	1120	900	1300	30230/DF	175	234	256	9	2.5	0.8	0.43	1.6	2.3	1.6	22.5
25	62	36.5	1.5	0.6	64.4	80	4500	6000	31305/DF	34	47	55	3	1.5	0.4	0.83	0.81	1.2	0.8	0.55
30	72	41.5	1.5	0.6	80.9	100	4000	5300	31306/DF	40	55	65	3	1.5	0.4	0.83	0.81	1.2	0.8	0.85
35	80	45.5	1.5	0.6	105	134	3400	4500	31307/DF	45	62	71	3	1.5	0.4	0.83	0.81	1.2	0.8	1.1
40	90	50.5	1.5	0.6	128	163	3000	4000	31308/DF	53	77	81	3	1.5	0.4	0.83	0.81	1.2	0.8	1.5
45	100	54.5	1.5	0.6	157	204	2600	3600	31309/DF	57	79	91	4	1.5	0.4	0.83	0.81	1.2	0.8	2
50	110	58.5	2	0.6	183	240	2400	3400	31310/DF	62	87	100	4	2	0.4	0.83	0.81	1.2	0.8	2.6
55	120	63	2	0.6	209	275	2000	3000	31311/DF	68	94	110	4	2	0.4	0.83	0.81	1.2	0.8	3.3
60	130	67	2.5	1	246	335	1900	2800	31312/DF	74	103	118	5	2	0.8	0.83	0.81	1.2	0.8	4.1

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