Metric System Supporting Rolling Bearing RSTO、STO

Outside Diameter	Bearing Designation and mass approx				Borndary Dimensions						Basic Load Rating				Limiting Speed
	Without IR	Mass	With IR	Mass	D	d	F 1 Fw	B	C	E	Cr Dynamic	Cor Static	As supporting hoop		Grease
		Mass		Mass	D	d	F 1 Fw	B	C	E	Cr Dynamic	Cor Static	Cw	Cow	Grease
mm		g		g	mm						N				rpm
16	RSTO 5 TN	8.5	--	--	16	--	7	--	7.8	10	2800	2600	2550	2550	23000
16	RSTO 5 TN X	8.5	--	--	16	--	7	--	7.8	10	2800	2600	1990	1990	23000
19	RSTO 6 TN	12.5	STO 6 TN	17	19	6	10	10	9.8	13	4700	5450	3750	4500	20000
19	RSTO 6 TN X	12.5	STO 6 TN X	17	19	6	10	10	9.8	13	4700	5450	3050	4000	20000
24	RSTO 8 TN	21	STO 8 TN	26	24	8	12	10	9.8	15	4800	6000	4200	5500	16000
24	RSTO 8 TN X	21	STO 8 TN	26	24	8	12	10	9.8	15	4800	6000	3000	5000	16000
30	RSTO 10	42	STO 10	49	30	10	14	12	11.8	20	10200	10500	8400	9200	11000
30	RSTO 10 X	42	STO 10 X	49	30	10	14	12	11.8	20	10200	10500	8000	8800	11000
32	RSTO 12	49	STO 12	57	32	12	16	12	11.8	22	11300	12300	8900	10100	9000
32	RSTO 12 X	49	STO 12 X	57	32	12	16	12	11.8	22	11300	12300	8500	9600	9000
35	RSTO 15	50	STO 15	63	35	15	20	12	11.8	26	13200	16000	9100	10700	6500
35	RSTO 15 X	50	STO 15 X	63	35	15	20	12	11.8	26	13200	16000	8700	9900	6500
40	RSTO 17	88	STO 17	107	40	17	22	16	15.8	29	19800	25300	14300	17700	5500
40	RSTO 17 X	88	STO 17 X	107	40	17	22	16	15.8	29	19800	25300	12500	15700	5500
47	RSTO 20	130	STO 20	152	47	20	25	16	15.8	32	20800	27800	16200	21500	4700
47	RSTO 20 X	130	STO 20 X	152	47	20	25	16	15.8	32	20800	27800	15000	19900	4700
52	RSTO 25	150	STO 25	177	52	25	30	16	15.8	37	23000	33400	16500	22900	3600
52	RSTO 25 X	150	STO 25 X	177	52	25	30	16	15.8	37	23000	33400	14000	20900	3600
62	RSTO 30	255	STO 30	308	62	30	38	20	19.8	46	35200	56700	23300	35000	2500
62	RSTO 30 X	255	STO 30 X	308	62	30	38	20	19.8	46	33200	56700	21800	33000	2500
72	RSTO 35	375	STO 35	441	72	35	42	20	19.8	50	35800	58800	26000	41000	2200
72	RSTO 35 X	375	STO 35 X	441	72	35	42	20	19.8	50	35800	58800	24500	38900	2200
80	RSTO 40	420	STO 40	530	80	40	50	20	19.8	58	35200	61800	24000	39000	1700
80	RSTO 40 X	420	STO 40 X	530	80	40	50	20	19.8	58	35200	61800	22500	36500	1700
85	RSTO 45	453	STO 45	576	85	45	55	20	19.8	63	38900	73900	25500	43000	1500
85	RSTO 45 X	453	STO 45 X	576	85	45	55	20	19.8	63	38900	73900	24000	41500	1500
90	RSTO 50	481	STO 50	617	90	50	60	20	19.8	68	43300	84800	26000	46500	1300
90	RSTO 50 X	481	STO 50 X	617	90	50	60	20	19.8	68	43300	84800	22800	44000	1300

Foreign Corporation Model Reference Table

Overseas merchant Model explanation			IKO	INA/SKF
With cage	Crowned Roller Dia.	Without IR	RNAST..R	RSTO
	Crowned Roller Dia.	With IR	NAST..R	STO
	Cylindrical Roller Dia.	Without IR	RNAST	RSTO..X
	Cylindrical Roller Dia.	With IR	NAST	STO..X