Dalian Metallurgical Bearing Co.,Ltd

The modified contact line between roller and raceway can reduce the stress concentration, and the tapered roller bearing can bear large radial and axial loads. Since the tapered roller bearing can only transmit one-way axial load, in order to transmit the axial load in the opposite direction, it is necessary to install another tapered roller bearing symmetrically with it.

Bearing symbol	Principal dimensions (mm)							Basic rated load (KN)		Limit speed r/min		Fitting dimension mm							Value			Weight(kg)
	d	D	T	B	C	R	r	Cr	C0r	Grease	Oil	damax	dbmin	Damin	Damax	Dbmin	Ca	Cb	e	y	yo
	30203	17	40	13.25	12	11	1	1	22	22.2	-	-	-	-	-	-	-	-	-	0.35	1.7	0.96	0.0798
	30204	20	47	15.25	14	12	1	1	30	31.2	8000	11000	27	26	40	41	43	2.5	3.3	0.35	1.7	0.96	0.126
	30305	25	62	18.25	17	15	1.5	1.5	49	49	9000	13000	35	32	54	55	58	3	5.3	0.3	2	1.1	0.263
	30205	25	52	16.25	15	13	1	1	32	35	7500	9500	31	31	44	46	49	2	3.3	0.37	1.6	0.88	0.153
	31306	30	72	20.75	19	14	1.5	1.5	55	60	5000	6700	38	38	55	65	67	2	608	0.83	0.72	0.4	0.392
	32306	30	72	28.75	27	23	1.5	1.5	84	95	5300	7000	38	37	59	65	66	2	6	0.37	1.9	1.05	0.554
	30306	30	72	20.75	19	16	1.5	1.5	62	63	5600	7500	40	37	62	65	66	4	6	0.31	1.9	1.05	0.386
	30206	30	62	17.25	16	14	1	1	46	50.9	6300	8500	37	36	53	56	58	3	4.5	0.37	1.6	0.88	0.231
	31307	35	80	22.75	21	15	2	1.5	68	76	4500	6000	45	44	62	71	76	3	7.5	0.83	0.7	0.4	0.514
	32307	35	80	32.75	31	25	2	1.5	102	116	4800	6300	43	44	66	71	74	4	8.5	0.31	1.9	1.05	0.764
	30307	35	80	22.75	21	18	2	1.5	79	82	5000	6700	47	44	68	73	75	3	5.5	0.31	1.9	1.05	0.516
	30207	35	72	18.25	17	15	1.5	1.5	57	63.7	5300	7000	44	42	62	65	67	3	3.3	0.37	1.6	0.88	0.332