Bearing Type	Mass	Designation	Mass	Dimensions									Basic Load Ratings				Limiting	Mounting		Designation
		with Dust		Fw	D	D1	D2	C	C1	C2	dw	r	Radial		Axial		Speed	Dimensions		Lnner Ring
		Shield											Cr	Cor	Cr	Cor		da	ra
													Dynamic	Static	Dynamic	Static
	g		g			max.	max.	-0.25	-0.2		E8	min.	kN	kN	kN	kN	rpm		max.	d×F×B
NKX 10TN	34	NKX 10ZTN	36	10	19	24.1	25.2	23	9	6.5	10	0.3	6.8	7.2	10	14	12000	19.7	0.3	IR 7×10×16
NKX 12	38	NKX 12Z	40	12	21	26.1	27.2	23	9	6.5	12	0.3	7.7	8.9	10.3	15.2	11000	21.7	0.3	IR 9×12×16
NKX 15	44	NKX 15Z	47	15	24	28.1	29.2	23	9	6.5	15	0.3	8.9	11.4	10.5	16.8	9500	23.7	0.3	IR 12×15×16
NKX 17	53	NKX 17Z	55	17	26	30.1	31.2	25	9	8	17	0.3	11.1	15.7	10.8	18.2	8500	25.7	0.3	IR 14×17×17
NKX 20	83	NKX 20Z	90	20	30	35.1	36.2	30	10	10.5	20	0.3	18	26.2	14.3	24.7	7500	30.7	0.3	IR 17×20×20
NKX 25	125	NKX 25Z	132	25	37	42.1	43.2	30	11	9.5	25	0.6	21.5	31.6	15.4	30.2	6000	37.7	0.6	IR 20×25×20
NKX 30	141	NKX 30Z	148	30	42	47.1	48.2	30	11	9.5	30	0.6	24.8	39.8	16	34.2	5000	42.7	0.6	IR 25×30×20
NKX 35	163	NKX 35Z	168	35	47	52.1	53.2	30	12	9	35	0.6	25.4	44.1	18.5	41.5	4600	47.7	0.6	IR 30×35×20
NKX 40	200	NKX 40Z	208	40	52	60.1	61.2	32	13	10	40	0.6	27.9	50.4	26.9	62.8	4000	55.7	0.6	IR 35×40×20
NKX 45	252	NKX 45Z	265	45	58	65.2	66.5	32	14	9	45	0.6	30.4	58.6	27	66	3600	60.5	0.6	IR 40×45×20
NKX 50	280	NKX 50Z	300	50	62	70.2	71.5	35	14	10	50	0.6	34.9	73.1	27.1	69.2	3300	65.5	0.6	IR 45×50×25
NKX 60	360	NKX 60Z	380	60	72	85.2	86.5	40	17	12	60	1	46.8	100	40.2	108	2800	80.5	1	IR 50×60×25
NKX 70	500	NKX 70Z	520	70	85	95.2	96.5	40	18	11	70	1	54.9	118.6	40.9	115	2400	90.5	1	IR 70×70×25
Note:
1.These load, speed and mass is reference of choice only.
2.If the cages are made of plastics, the maximum allowable working themperrature is 120? in
continuous working and 180? in short working.
3.With grease lubrication, 60% of these limiting speed will apply.