推力球轴承

NEEDLE-HRUST BALLBEARINGS

              NKX              　　　　　　     NKX...Z

With/without fixed cages

NKX,NKX...Z

Shaft Diameter	Bearing Designation		Bearing Designation
Shaft Diameter		Bearing DesignationBearing Designation	FW	D	D₁	D₂	C	C₁ -0.25	C₂ -0.2	d_w E8	r_s min.
mm		Bearing DesignationBearing Designation	FW	D	D₁	D₂	C	C₁ -0.25	C₂ -0.2	d_w E8	r_s min.
10	NKX 10 TN*)	NKX 10 Z TN*)	10	19	24	25.2	23	9	6.5	10	0.3
12	NKX 12	NKX 12 Z	12	21	26	27.2	23	9	6.5	12	0.3
15	NKX 15	NKX 15 Z	15	24	28	29.2	23	9	6.5	15	0.3
17	NKX 17	NKX 17 Z	17	26	30	31.2	25	9	8	17	0.3
20	NKX 20	NKX 20 Z	20	30	35	36.2	30	10	10.5	20	0.3
25	NKX 25	NKX 25 Z	25	37	42	43.2	30	11	9.5	25	0.6
30	NKX 30	NKX 30 Z	30	42	47	48.2	30	11	9.5	30	0.6
35	NKX 35	NKX 35 Z	35	47	52	53.2	30	12	9	35	0.6
40	NKX 40	NKX 40 Z	40	52	60	61.2	32	13	10	40	0.6
45	NKX 45	NKX 45 Z	45	58	65	66.5	32	14	9	45	0.6
50	NKX 50	NKX 50 Z	50	62	70	71.5	35	14	10	50	0.6
60	NKX 60	NKX 60 Z	60	72	85	86.5	40	17	12	60	1
70	NKX 70	NKX 70 Z	70	85	95	96.5	40	18	11	70	1

Bearing Designation				Limiting Speed2) ⁿ¹oil ≈ min-1	Mounting Size		The inner ring to fit3) d F B
Bearing Designation		Axial1)			d_a	r_a max.
C N	C0 N	C N	C0 N		d_a	r_a max.
6200	7800	10000	12100	12000	19.7	0.3	IR 7X10X16
9000	11000	10300	13300	11000	21.7	0.3	IR 9X12X16
10700	12700	10500	14500	9500	23.7	0.3	IR 12X15X16
11900	15000	10800	15700	8500	25.7	0.3	IR 14X17X17
16400	23800	14300	21400	7500	30.7	0.3	IR 17X20X20
18800	30500	19600	32000	6000	37.7	0.6	IR 20X25X20
22600	36000	20400	36500	5000	42.7	0.6	IR 25X30X20
24300	41500	21200	41000	4600	47.7	0.6	IR 30X35X20
26000	47000	27000	54000	4000	55.7	0.6	IR 35X40X20
27500	53000	28000	60000	3600	60.5	0.6	IR 40X45X20
38000	74000	29000	65000	3300	65.5	0.6	IR 45X50X25
42000	90000	41500	97000	2800	80.5	1	IR 50X60X25
44500	92000	43000	110000	2400	90.5	1	IR 60X70X25

TN=plastic retainer, permissible operational temperature 120℃, 150℃for temporary use ,180℃ for short time only. 1) minister axile load is 1% to 2% of Fa=C(axial). 2) for grease lub, the permissible value should be 60% of those in the list. 3) inner ring and stop ring must to be part to order. 4) if two bearings will move to minister center distance,there stop rings must to be shorten.