Open Type-A Angular Contact Bearings | High Precision and Durability-LYNBC

Open Angular Contact-Type A (NBKG 1”×1”)

NBKG SERIES 1" x 1"
NICE PART NUMBER	DIMENSION IN INCHES					CAPACITIES IN POUNDS				Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	C'BORE DIA	RADIAL		THRUST
	B	D	L₁	L₂	L₃	STATIC	DYN	STATIC	DYN
NBKG040AR0	4.000	6.000	4.742	5.258	5.491	9,480	6,280	27,360	13,630	3.600
	101.600	152.400	120.447	133.553	139.471	9,480	6,280	27,360	13,630	1.633
NBKG042AR0	4.250	6.250	4.992	5.508	5.741	9,950	6,440	28,730	14,090	3.800
	107.950	158.750	126.797	139.903	145.821	9,950	6,440	28,730	14,090	1.724
NBKG045AR0	4.500	6.500	5.242	5.758	5.989	10,430	6,560	30,100	14,530	4.000
	114.300	165.100	133.147	146.253	152.121	10,430	6,560	30,100	14,530	1.814
NBKG047AR0	4.750	6.750	5.492	6.008	6.239	10,900	6,745	31,460	14,970	4.100
	120.650	171.450	139.497	152.603	158.471	10,900	6,745	31,460	14,970	1.860
NBKG050AR0	5.000	7.000	5.742	6.258	6.489	11,370	6,895	32,830	15,400	4.300
	127.000	177.800	145.847	158.953	164.821	11,370	6,895	32,830	15,400	1.950
NBKG055AR0	5.500	7.500	6.242	6.758	6.989	12,320	7,190	35,570	16,240	4.700
	139.700	190.500	158.547	171.653	177.521	12,320	7,190	35,570	16,240	2.132
NBKG060AR0	6.000	8.000	6.742	7.258	7.489	13,270	7,480	38,300	17,060	5.100
	152.400	203.200	171.247	184.353	190.221	13,270	7,480	38,300	17,060	2.313
NBKG065AR0	6.500	8.500	7.242	7.758	7.987	14,220	7,760	41,040	17,870	5.400
	165.100	215.900	183.947	197.053	202.870	14,220	7,760	41,040	17,870	2.449
NBKG070AR0	7.000	9.000	7.742	8.258	8.487	15,160	8,035	43,780	18,650	5.800
	177.800	228.600	196.647	209.753	215.570	15,160	8,035	43,780	18,650	2.631
NBKG075AR0	7.500	9.500	8.242	8.758	8.987	16,110	8,305	46,510	19,420	6.100
	190.500	241.300	209.347	222.453	228.270	16,110	8,305	46,510	19,420	2.767
NBKG080AR0	8.000	10.000	8.742	9.258	9.485	17,060	8,565	49,250	20,180	6.500
	203.200	254.000	222.047	235.153	240.919	17,060	8,565	49,250	20,180	2.948
NBKG090AR0	9.000	11.000	9.742	10.258	10.485	18,960	9,075	54,720	21,640	7.200
	228.600	279.400	247.447	260.553	266.319	18,960	9,075	54,720	21,640	3.266
NBKG100AR0	10.000	12.000	10.742	11.258	11.483	20,850	9,560	60,190	23,060	7.900
	254.000	304.800	272.847	285.953	291.668	20,850	9,560	60,190	23,060	3.583
NBKG110AR0	11.000	13.000	11.742	12.258	12.481	22,750	10,025	65,660	24,440	8.600
	279.400	330.200	298.247	311.353	317.017	22,750	10,025	65,660	24,440	3.901
NBKG120AR0	12.000	14.000	12.742	13.258	13.481	24,640	10,480	71,140	25,780	9.300
	304.800	355.600	323.647	336.753	342.417	24,640	10,480	71,140	25,780	4.218
NBKG140AR0	14.000	16.000	14.742	15.258	15.478	28,430	11,340	82,080	28,360	10.800
	355.600	406.400	374.447	387.553	393.141	28,430	11,340	82,080	28,360	4.899
NBKG160AR0	16.000	18.000	16.742	17.258	17.474	32,220	12,140	93,020	30,830	12.300
	406.400	457.200	425.247	438.353	443.840	32,220	12,140	93,020	30,830	5.579
NBKG180AR0	18.000	20.000	18.742	19.258	19.472	36,020	12,900	104,000	33,200	13.700
	457.200	508.000	476.047	489.153	494.589	36,020	12,900	104,000	33,200	6.214
NBKG200AR0	20.000	22.000	20.742	21.258	21.468	39,810	13,610	114,900	35,490	15.800
	508.000	558.800	526.847	539.953	545.287	39,810	13,610	114,900	35,490	7.167
NBKG250AR0	25.000	27.000	25.742	26.258	26.461	49,280	15,240	142,300	40,920	19.500
	635.000	685.800	653.847	666.953	672.109	49,280	15,240	142,300	40,920	8.845
NBKG300AR0	30.000	32.000	30.742	31.258	31.451	58,760	16,685	169,600	46,020	23.300
	762.000	812.800	780.847	793.953	798.855	58,760	16,685	169,600	46,020	10.569
NBKG350AR0	35.000	37.000	35.742	36.258	36.440	68,240	17,980	197,000	50,840	27.100
	889.000	939.800	907.847	920.953	925.576	68,240	17,980	197,000	50,840	12.293

Open Angular Contact-Type A (NBKF 3/4”×3/4”)

NBKF SERIES 3/4" x 3/4"
NICE PART NUMBER	DIMENSION IN INCHES					CAPACITIES IN POUNDS				Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	C'BORE DIA	RADIAL		THRUST
	B	D	L₁	L₂	L₃	STATIC	DYN	STATIC	DYN
NBKF040AR0	4.000	5.500	4.555	4.945	5.115	6,350	3,735	18,340	8,420	1.900
	101.600	139.700	115.697	125.603	129.921	6,350	3,735	18,340	8,420	0.862
NBKF042AR0	4.250	5.750	4.805	5.195	5.365	6,600	3,805	19,050	8,630	2.000
	107.950	146.050	122.047	131.953	136.271	6,600	3,805	19,050	8,630	0.907
NBKF045AR0	4.500	6.000	5.060	5.445	5.615	7,090	3,965	20,460	9,050	2.100
	114.300	152.400	128.524	138.303	142.621	7,090	3,965	20,460	9,050	0.953
NBKF047AR0	4.750	6.250	5.305	5.695	5.865	7,330	4,035	21,160	9,260	2.200
	120.650	158.750	134.747	144.653	148.971	7,330	4,035	21,160	9,260	0.998
NBKF050AR0	5.000	6.500	5.555	5.945	6.115	7,570	4,100	21,870	9,460	2.300
	127.000	165.100	141.097	151.003	155.321	7,570	4,100	21,870	9,460	1.043
NBKF055AR0	5.500	7.000	6.055	6.445	6.613	8,310	4,320	23,980	10,060	2.500
	139.700	177.800	153.797	163.703	167.970	8,310	4,320	23,980	10,060	1.134
NBKF060AR0	6.000	7.500	6.555	6.945	7.113	9,040	4,530	26,100	10,650	2.700
	152.400	190.500	166.497	176.403	180.670	9,040	4,530	26,100	10,650	1.225
NBKF065AR0	6.500	8.000	7.055	7.445	7.613	9,770	4,735	28,220	11,220	2.900
	165.100	203.200	179.197	189.103	193.370	9,770	4,735	28,220	11,220	1.315
NBKF070AR0	7.000	8.500	7.555	7.945	8.113	10,510	4,930	30,330	11,770	3.200
	177.800	215.900	191.897	201.803	206.070	10,510	4,930	30,330	11,770	1.452
NBKF075AR0	7.500	9.000	8.055	8.445	8.610	11,000	5,050	31,740	12,130	3.400
	190.500	228.600	204.597	214.503	218.694	11,000	5,050	31,740	12,130	1.542
NBKF080AR0	8.000	9.500	8.555	8.945	9.110	11,730	5,240	33,860	12,670	3.500
	203.200	241.300	217.297	227.203	231.394	11,730	5,240	33,860	12,670	1.588
NBKF090AR0	9.000	10.500	9.555	9.945	10.108	13,190	5,610	38,090	13,700	3.900
	228.600	266.700	242.697	252.603	256.743	13,190	5,610	38,090	13,700	1.769
NBKF100AR0	10.000	11.500	10.555	10.945	11.106	14,420	5,890	41,620	14,530	4.300
	254.000	292.100	268.097	278.003	282.092	14,420	5,890	41,620	14,530	1.950
NBKF110AR0	11.000	12.500	11.555	11.945	12.106	15,880	6,225	45,850	15,500	4.800
	279.400	317.500	293.497	303.403	307.492	15,880	6,225	45,850	15,500	2.177
NBKF120AR0	12.000	13.500	12.555	12.945	13.104	17,100	6,485	49,380	16,290	5.200
	304.800	342.900	318.897	328.803	332.842	17,100	6,485	49,380	16,290	2.359
NBKF140AR0	14.000	15.500	14.555	14.945	15.102	19,790	7,045	57,140	17,950	6.000
	355.600	393.700	369.697	379.603	383.591	19,790	7,045	57,140	17,950	2.722
NBKF160AR0	16.000	17.500	16.555	16.945	17.098	22,480	7,565	64,890	19,540	7.100
	406.400	444.500	420.497	430.403	434.289	22,480	7,565	64,890	19,540	3.221
NBKF180AR0	18.000	19.500	18.555	18.945	19.096	25,410	8,105	73,360	21,210	7.900
	457.200	495.300	471.297	481.203	485.038	25,410	8,105	73,360	21,210	3.583
NBKF200AR0	20.000	21.500	20.555	20.945	21.092	28,100	8,560	81,120	22,680	8.900
	508.000	546.100	522.097	532.003	535.737	28,100	8,560	81,120	22,680	4.037
NBKF250AR0	25.000	26.500	25.555	25.945	26.085	34,700	9,585	100,200	26,100	10.900
	635.000	673.100	649.097	659.003	662.559	34,700	9,585	100,200	26,100	4.944
NBKF300AR0	30.000	31.500	30.555	30.945	31.075	41,540	10,535	119,900	29,430	13.000
	762.000	800.100	776.097	786.003	789.305	41,540	10,535	119,900	29,430	5.897
NBKF350AR0	35.000	36.500	35.555	35.945	36.064	48,380	11,380	139,700	32,580	15.100
	889.000	927.100	903.097	913.003	916.026	48,380	11,380	139,700	32,580	6.849

Open Angular Contact-Type A (NBKD 1/2”×1/2”)

NBKD SERIES 1/2" x 1/2"
NICE PART NUMBER	DIMENSION IN INCHES					CAPACITIES IN POUNDS				Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	C'BORE DIA	RADIAL		THRUST
	B	D	L₁	L₂	L₃	STATIC	DYN	STATIC	DYN
NBKD040AR0	4.000	5.000	4.370	4.630	4.741	3,550	1,820	10,260	4,260	0.780
	101.600	127.000	110.998	117.602	120.421	3,550	1,820	10,260	4,260	0.354
NBKD042AR0	4.250	5.250	4.620	4.880	4.991	3,750	1,875	10,830	4,420	0.830
	107.950	133.350	117.348	123.952	126.771	3,750	1,875	10,830	4,420	0.376
NBKD045AR0	4.500	5.500	4.870	5.130	5.241	3,950	1,930	11,400	4,570	0.880
	114.300	139.700	123.698	130.302	133.121	3,950	1,930	11,400	4,570	0.399
NBKD047AR0	4.750	5.750	5.120	5.380	5.490	4,150	1,985	11,970	4,720	0.940
	120.650	146.050	130.048	136.652	139.446	4,150	1,985	11,970	4,720	0.426
NBKD050AR0	5.000	6.000	5.370	5.630	5.740	4,340	2,040	12,540	4,870	1.000
	127.000	152.400	136.398	143.002	145.796	4,340	2,040	12,540	4,870	0.454
NBKD055AR0	5.500	6.500	5.870	6.130	6.238	4,740	2,145	13,680	5,160	1.060
	139.700	165.100	149.098	155.702	158.445	4,740	2,145	13,680	5,160	0.481
NBKD060AR0	6.000	7.000	6.370	6.630	6.738	5,130	2,245	14,820	5,440	1.160
	152.400	177.800	161.798	168.402	171.145	5,130	2,245	14,820	5,440	0.526
NBKD065AR0	6.500	7.500	6.870	7.130	7.236	5,530	2,345	15,960	5,720	1.220
	165.100	190.500	174.498	181.102	183.794	5,530	2,345	15,960	5,720	0.553
NBKD070AR0	7.000	8.000	7.370	7.630	7.736	5,920	2,440	17,100	5,990	1.310
	177.800	203.200	187.198	193.802	196.494	5,920	2,440	17,100	5,990	0.594
NBKD075AR0	7.500	8.500	7.870	8.130	8.236	6,320	2,535	18,240	6,250	1.410
	190.500	215.900	199.898	206.502	209.194	6,320	2,535	18,240	6,250	0.640
NBKD080AR0	8.000	9.000	8.370	8.630	8.734	6,710	2,625	19,380	6,510	1.530
	203.200	228.600	212.598	219.202	221.844	6,710	2,625	19,380	6,510	0.694
NBKD090AR0	9.000	10.000	9.370	9.630	9.732	7,500	2,805	21,660	7,010	1.720
	228.600	254.000	237.998	244.602	247.193	7,500	2,805	21,660	7,010	0.780
NBKD100AR0	10.000	11.000	10.370	10.630	10.732	8,290	2,970	23,940	7,500	1.880
	254.000	279.400	263.398	270.002	272.593	8,290	2,970	23,940	7,500	0.853
NBKD110AR0	11.000	12.000	11.370	11.630	11.730	9,080	3,135	26,220	7,960	2.060
	279.400	304.800	288.798	295.402	297.942	9,080	3,135	26,220	7,960	0.934
NBKD120AR0	12.000	13.000	12.370	12.630	12.728	9,870	3,290	28,500	8,420	2.250
	304.800	330.200	314.198	320.802	323.291	9,870	3,290	28,500	8,420	1.021
NBKD140AR0	14.000	15.000	14.370	14.630	14.724	11,450	3,580	33,060	9,290	2.730
	355.600	381.000	364.998	371.602	373.990	11,450	3,580	33,060	9,290	1.238
NBKD160AR0	16.000	17.000	16.370	16.630	16.718	13,030	3,855	37,620	10,130	3.100
	406.400	431.800	415.798	422.402	424.637	13,030	3,855	37,620	10,130	1.406
NBKD180AR0	18.000	19.000	18.370	18.630	18.712	14,610	4,115	42,180	10,930	3.480
	457.200	482.600	466.598	473.202	475.285	14,610	4,115	42,180	10,930	1.579
NBKD 200AR0	20.000	21.000	20.370	20.630	20.705	16,190	4,355	46,740	11,710	3.850
	508.000	533.400	517.398	524.002	525.907	16,190	4,355	46,740	11,710	1.746
NBKD 250AR0	25.000	26.000	25.370	25.630	25.688	20,140	4,910	58,140	13,540	4.790
	635.000	660.400	644.398	651.002	652.475	20,140	4,910	58,140	13,540	2.173
NBKD 300AR0	30.000	31.000	30.370	30.630	30.672	24,090	5,395	69,540	15,260	5.730
	762.000	787.400	771.398	778.002	779.069	24,090	5,395	69,540	15,260	2.599

Open Angular Contact-Type A (NBKC 3/8”×3/8”)

NBKC SERIES 3/8" x 3/8"
NICE PART NUMBER	DIMENSION IN INCHES					CAPACITIES IN POUNDS				Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	C'BORE DIA	RADIAL		THRUST
	B	D	L₁	L₂	L₃	STATIC	DYN	STATIC	DYN
NBKC040AR0	4.000	4.750	4.277	4.473	4.554	2,550	1,155	7,360	2,770	0.450
	101.600	120.650	108.636	113.614	115.672	2,550	1,155	7,360	2,770	0.204
NBKC042AR0	4.250	5.000	4.527	4.723	4.804	2,710	1,195	7,820	2,880	0.470
	107.950	127.000	114.986	119.964	122.022	2,710	1,195	7,820	2,880	0.213
NBKC045AR0	4.500	5.250	4.777	4.973	5.052	2,860	1,235	8,270	2,990	0.480
	114.300	133.350	121.336	126.314	128.321	2,860	1,235	8,270	2,990	0.218
NBKC047AR0	4.750	5.500	5.027	5.223	5.302	3,020	1,275	8,720	3,100	0.500
	120.650	139.700	127.686	132.664	134.671	3,020	1,275	8,720	3,100	0.227
NBKC050AR0	5.000	5.750	5.277	5.473	5.552	3,180	1,315	9,170	3,200	0.580
	127.000	146.050	134.036	139.014	141.021	3,180	1,315	9,170	3,200	0.263
NBKC055AR0	5.500	6.250	5.777	5.973	6.052	3,440	1,375	9,920	3,370	0.590
	139.700	158.750	146.736	151.714	153.721	3,440	1,375	9,920	3,370	0.268
NBKC060AR0	6.000	6.750	6.277	6.473	6.550	3,750	1,450	10,820	3,580	0.630
	152.400	171.450	159.436	164.414	166.370	3,750	1,450	10,820	3,580	0.286
NBKC065AR0	6.500	7.250	6.777	6.973	7.050	4,060	1,520	11,720	3,770	0.680
	165.100	184.150	172.136	177.114	179.070	4,060	1,520	11,720	3,770	0.308
NBKC070AR0	7.000	7.750	7.277	7.473	7.550	4,320	1,575	12,470	3,930	0.730
	177.800	196.850	184.836	189.814	191.770	4,320	1,575	12,470	3,930	0.331
NBKC075AR0	7.500	8.250	7.777	7.973	8.048	4,630	1,640	13,380	4,120	0.780
	190.500	209.550	197.536	202.514	204.419	4,630	1,640	13,380	4,120	0.354
NBKC080AR0	8.000	8.750	8.277	8.473	8.548	4,950	1,710	14,280	4,300	0.840
	203.200	222.250	210.236	215.214	217.119	4,950	1,710	14,280	4,300	0.381
NBKC090AR0	9.000	9.750	9.277	9.473	9.546	5,520	1,820	15,930	4,630	0.940
	228.600	247.650	235.636	240.614	242.468	5,520	1,820	15,930	4,630	0.426
NBKC100AR0	10.000	10.750	10.277	10.473	10.544	6,140	1,940	17,730	4,970	1.060
	254.000	273.050	261.036	266.014	267.818	6,140	1,940	17,730	4,970	0.481
NBKC110AR0	11.000	11.750	11.277	11.473	11.542	6,720	2,045	19,390	5,280	1.160
	279.400	298.450	286.436	291.414	293.167	6,720	2,045	19,390	5,280	0.526
NBKC120AR0	12.000	12.750	12.277	12.473	12.540	7,290	2,145	21,040	5,570	1.250
	304.800	323.850	311.836	316.814	318.516	7,290	2,145	21,040	5,570	0.567
NBKC140AR0	14.000	14.750	14.277	14.473	14.535	8,490	2,345	24,500	6,170	1.520
	355.600	374.650	362.636	367.614	369.189	8,490	2,345	24,500	6,170	0.689
NBKC160AR0	16.000	16.750	16.277	16.473	16.529	9,680	2,535	27,950	6,730	1.730
	406.400	425.450	413.436	418.414	419.837	9,680	2,535	27,950	6,730	0.785
NBKC180AR0	18.000	18.750	18.277	18.473	18.523	10,880	2,705	31,410	7,280	1.940
	457.200	476.250	464.236	469.214	470.484	10,880	2,705	31,410	7,280	0.880
NBKC200AR0	20.000	20.750	20.277	20.473	20.517	12,030	2,865	34,720	7,780	2.160
	508.000	527.050	515.036	520.014	521.132	12,030	2,865	34,720	7,780	0.980
NBKC250AR0	25.000	25.750	25.277	25.473	25.500	14,900	3,235	43,280	9,010	2.690
	635.000	654.050	642.036	647.014	647.700	14,900	3,235	43,280	9,010	1.220
NBKC300AR0	30.000	30.750	30.277	30.473	30.484	17,960	3,560	51,850	10,160	3.210
	762.000	781.050	769.036	774.014	774.294	17,960	3,560	51,850	10,160	1.456

Open Angular Contact-Type A (NBKB 5/16”×5/16”)

NBKB SERIES 5/16" x 5/16"
NICE PART NUMBER	DIMENSION IN INCHES					CAPACITIES IN POUNDS				Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	C'BORE DIA	RADIAL		THRUST
	B	D	L₁	L₂	L₃	STATIC	DYN	STATIC	DYN
NBKB020AR0	2.000	2.625	2.231	2.393	2.464	1,090	600	3,150	1,380	0.160
	50.800	66.675	56.667	60.782	62.586	1,090	600	3,150	1,380	0.073
NBKB025AR0	2.500	3.125	2.731	2.893	2.964	1,340	675	3,860	1,590	0.190
	63.500	79.375	69.367	73.482	75.286	1,340	675	3,860	1,590	0.086
NBKB030AR0	3.000	3.625	3.231	3.393	3.462	1,550	735	4,470	1,750	0.240
	76.200	92.075	82.067	86.182	87.935	1,550	735	4,470	1,750	0.109
NBKB035AR0	3.500	4.125	3.731	3.893	3.962	1,790	800	5,180	1,930	0.290
	88.900	104.775	94.767	98.882	100.635	1,790	800	5,180	1,930	0.132
NBKB040AR0	4.000	4.625	4.231	4.393	4.460	2,040	865	5,890	2,100	0.300
	101.600	117.475	107.467	111.582	113.284	2,040	865	5,890	2,100	0.136
NBKB042AR0	4.250	4.875	4.481	4.643	4.710	2,150	890	6,200	2,170	0.310
	107.950	123.825	113.817	117.932	119.634	2,150	890	6,200	2,170	0.141
NBKB045AR0	4.500	5.125	4.731	4.893	4.960	2,250	915	6,500	2,240	0.330
	114.300	130.175	120.167	124.282	125.984	2,250	915	6,500	2,240	0.150
NBKB047AR0	4.750	5.375	4.981	5.143	5.210	2,390	950	6,910	2,340	0.340
	120.650	136.525	126.517	130.632	132.334	2,390	950	6,910	2,340	0.154
NBKB050AR0	5.000	5.625	5.231	5.393	5.460	2,500	975	7,210	2,410	0.380
	127.000	142.875	132.867	136.982	138.684	2,500	975	7,210	2,410	0.172
NBKB055AR0	5.500	6.125	5.731	5.893	5.958	2,740	1,035	7,920	2,560	0.410
	139.700	155.575	145.567	149.682	151.333	2,740	1,035	7,920	2,560	0.186
NBKB060AR0	6.000	6.625	6.231	6.393	6.458	2,990	1,090	8,630	2,710	0.440
	152.400	168.275	158.267	162.382	164.033	2,990	1,090	8,630	2,710	0.200
NBKB065AR0	6.500	7.125	6.731	6.893	6.958	3,200	1,130	9,240	2,840	0.470
	165.100	180.975	170.967	175.082	176.733	3,200	1,130	9,240	2,840	0.213
NBKB070AR0	7.000	7.625	7.231	7.393	7.456	3,450	1,185	9,960	2,980	0.500
	177.800	193.675	183.667	187.782	189.382	3,450	1,185	9,960	2,980	0.227
NBKB075AR0	7.500	8.125	7.731	7.893	7.955	3,700	1,235	10,670	3,120	0.530
	190.500	206.375	196.367	200.482	202.057	3,700	1,235	10,670	3,120	0.240
NBKB080AR0	8.000	8.625	8.231	8.393	8.453	3,940	1,285	11,380	3,260	0.570
	203.200	219.075	209.067	213.182	214.706	3,940	1,285	11,380	3,260	0.259
NBKB090AR0	9.000	9.625	9.231	9.393	9.451	4,400	1,370	12,700	3,510	0.660
	228.600	244.475	234.467	238.582	240.055	4,400	1,370	12,700	3,510	0.299
NBKB100AR0	10.000	10.625	10.231	10.393	10.449	4,890	1,460	14,120	3,760	0.730
	254.000	269.875	259.867	263.982	265.405	4,890	1,460	14,120	3,760	0.331
NBKB110AR0	11.000	11.625	11.231	11.393	11.447	5,350	1,540	15,440	4,000	0.750
	279.400	295.275	285.267	289.382	290.754	5,350	1,540	15,440	4,000	0.340
NBKB120AR0	12.000	12.625	12.231	12.393	12.445	5,840	1,625	16,860	4,240	0.830
	304.800	320.675	310.667	314.782	316.103	5,840	1,625	16,860	4,240	0.376
NBKB140AR0	14.000	14.625	14.231	14.393	14.439	6,760	1,765	19,500	4,670	1.050
	355.600	371.475	361.467	365.582	366.751	6,760	1,765	19,500	4,670	0.476
NBKB160AR0	16.000	16.625	16.231	16.393	16.433	7,710	1,905	22,250	5,100	1.200
	406.400	422.275	412.267	416.382	417.398	7,710	1,905	22,250	5,100	0.544
NBKB180AR0	18.000	18.625	18.231	18.393	18.425	8,660	2,040	24,990	5,510	1.350
	457.200	473.075	463.067	467.182	467.995	8,660	2,040	24,990	5,510	0.612
NBKB200AR0	20.000	20.625	20.231	20.393	20.416	9,610	2,160	27,730	5,900	1.500
	508.000	523.875	513.867	517.982	518.566	9,610	2,160	27,730	5,900	0.680

Open Angular Contact-Type A (NBKA 1/4”×1/4”)

NICE PART NUMBER	DIMENSION IN INCHES					CAPACITIES IN POUNDS				Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	C'BORE DIA	RADIAL		THRUST
	B	D	L₁	L₂	L₃	STATIC	DYN	STATIC	DYN
NBKA020AR0	2.000	2.500	2.186	2.314	2.369	790	405	2,280	960	0.100
	50.800	63.500	55.524	58.776	60.173	790	405	2,280	960	0.045
NBKA025AR0	2.500	3.000	2.686	2.814	2.869	960	460	2,780	1,100	0.130
	63.500	76.200	68.224	71.476	72.873	960	460	2,780	1,100	0.059
NBKA030AR0	3.000	3.500	3.186	3.314	3.367	1,140	505	3,290	1,230	0.150
	76.200	88.900	80.924	84.176	85.522	1,140	505	3,290	1,230	0.068
NBKA035AR0	3.500	4.000	3.686	3.814	3.867	1,310	550	3,790	1,350	0.180
	88.900	101.600	93.624	96.876	98.222	1,310	550	3,790	1,350	0.082
NBKA040AR0	4.000	4.500	4.186	4.314	4.367	1,490	595	4,300	1,470	0.190
	101.600	114.300	106.324	109.576	110.922	1,490	595	4,300	1,470	0.086
NBKA042AR0	4.250	4.750	4.436	4.564	4.615	1,580	615	4,550	1,530	0.200
	107.950	120.650	112.674	115.926	117.221	1,580	615	4,550	1,530	0.091
NBKA045AR0	4.500	5.000	4.686	4.814	4.865	1,660	635	4,810	1,580	0.220
	114.300	127.000	119.024	122.276	123.571	1,660	635	4,810	1,580	0.100
NBKA047AR0	4.750	5.250	4.936	5.064	5.115	1,750	655	5,060	1,640	0.230
	120.650	133.350	125.374	128.626	129.921	1,750	655	5,060	1,640	0.104
NBKA050AR0	5.000	5.500	5.186	5.314	5.365	1,840	675	5,310	1,690	0.240
	127.000	139.700	131.724	134.976	136.271	1,840	675	5,310	1,690	0.109
NBKA055AR0	5.500	6.000	5.686	5.814	5.863	2,020	715	5,820	1,800	0.250
	139.700	152.400	144.424	147.676	148.920	2,020	715	5,820	1,800	0.113
NBKA060AR0	6.000	6.500	6.186	6.314	6.363	2,190	750	6,320	1,900	0.280
	152.400	165.100	157.124	160.376	161.620	2,190	750	6,320	1,900	0.127
NBKA065AR0	6.500	7.000	6.686	6.814	6.861	2,370	790	6,830	2,000	0.300
	165.100	177.800	169.824	173.076	174.269	2,370	790	6,830	2,000	0.136
NBKA070AR0	7.000	7.500	7.186	7.314	7.361	2,540	825	7,340	2,100	0.310
	177.800	190.500	182.524	185.776	186.969	2,540	825	7,340	2,100	0.141
NBKA075AR0	7.500	8.000	7.686	7.814	7.861	2,720	855	7,840	2,190	0.340
	190.500	203.200	195.224	198.476	199.669	2,720	855	7,840	2,190	0.154
NBKA080AR0	8.000	8.500	8.186	8.314	8.359	2,890	890	8,350	2,280	0.380
	203.200	215.900	207.924	211.176	212.319	2,890	890	8,350	2,280	0.172
NBKA090AR0	9.000	9.500	9.186	9.314	9.357	3,240	955	9,360	2,470	0.440
	228.600	241.300	233.324	236.576	237.668	3,240	955	9,360	2,470	0.200
NBKA100AR0	10.000	10.500	10.186	10.314	10.355	3,590	1,015	10,370	2,640	0.500
	254.000	266.700	258.724	261.976	263.017	3,590	1,015	10,370	2,640	0.227
NBKA110AR0	11.000	11.500	11.186	11.314	11.353	3,940	1,070	11,380	2,810	0.520
	279.400	292.100	284.124	287.376	288.366	3,940	1,070	11,380	2,810	0.236
NBKA120AR0	12.000	12.500	12.186	12.314	12.349	4,290	1,130	12,390	2,970	0.560
	304.800	317.500	309.524	312.776	313.665	4,290	1,130	12,390	2,970	0.254

Open Angular Contact-Type A (NBKAA 3/16”×3/16”)

NICE PART NUMBER	DIMENSION IN INCHES					CAPACITIES IN POUNDS				Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	C'BORE DIA	RADIAL		THRUST
	B	D	L₁	L₂	L₃	STATIC	DYN	STATIC	DYN
NBKAA10AG0	1.000	1.375	1.140	1.235	1.274	340	195	970	450	0.030
	25.400	34.925	28.956	31.369	32.360	340	195	970	450	0.014
NBKAA15AG0	1.500	1.875	1.640	1.735	1.774	480	240	1,380	560	0.040
	38.100	47.625	41.656	44.069	45.060	480	240	1,380	560	0.018
NBKAA17AG0	1.750	2.125	1.890	1.985	1.990	530	250	1,520	600	0.040
	44.450	53.975	48.006	50.419	50.546	530	250	1,520	600	0.018

Open Type A angular contact bearings Introduction

Open type A angular contact bearings are a specialized type of angular contact ball bearing known for their ability to handle high axial loads in one direction while accommodating high speeds. They're called "Type A" due to their single-row, non-separable design and the characteristic "A" shape of the inner and outer rings. The "Open" designation refers to the absence of seals or shields, which allows for optimal lubrication and heat dissipation, further contributing to their suitability for high-speed applications.

Key Characteristics and Features

Features and Benefits

The type A is also designed for which is featured a circular pocket separator and a 30° contact angular. The main advantage of the type A bearings is that it brings out high axial loads and also bears unidirectional thrust capacity. Thus, the type A bearing also make a good difference in radial or combined radial-thrust applications. The type A bearing should never be used alone to support moment loads or reversing axial loading.

Thin cross section
Lightweight
Low friction
High stiffness
High running accuracy

TYPE A LOAD CONDITION

Radial

Axial

Moment

Reversing Axial

Combined Radial-Thrust

Good

Excellent

Use in Pairs

Excellent

Use in Pairs

Excellent

Good

Interchange with LYNBCC、Kaydon/SKF、Silverthin、INA、FAG、NSK、NTN、SSB、RBC

Advantages of Open Type-A Angular Contact Bearings

High Speed Performance: Excellent for high-speed applications due to efficient lubrication and heat dissipation.

High Axial Load Capacity: Handles substantial axial loads in one direction.

Compact Design: Single-row construction results in a smaller overall size.

Rigidity: Non-separable design provides inherent rigidity.

Accurate Positioning: High precision manufacturing enables accurate positioning.

Common Applications

Machine Tool Spindles: A very common application where high speeds and high precision are critical.

Grinding Machines: Precision grinding requires bearings capable of high speeds and accurate positioning.

Textile Machinery: High-speed spinning and weaving equipment.

High-Speed Pumps: Axial loads and high speeds are typical in many pump designs.

Robotics: Precision motion control applications often benefit from these bearings.

Aerospace Applications: Where high performance and lightweight designs are crucial.

Considerations for Selection and Use

Lubrication: Proper lubrication is critical for the performance and longevity of these bearings. Consider oil lubrication or grease lubrication suitable for high speeds and temperatures. Implement an effective lubrication system.

Preload: Calculate and apply the correct preload to optimize performance and prevent ball skidding.

Load Conditions: Analyze the radial and axial loads to ensure the bearing is appropriately sized for the application.

Speed: Select a bearing with a speed rating suitable for the application.

Operating Environment: Ensure the operating environment is clean and free of contaminants.

Mounting and Installation: Follow the manufacturer's recommendations for mounting and installation to ensure proper preload and alignment.