Thin Section Angular Contact Ball Bearings |Thin Section Bearings|Precision Bearings|Products|NewBee Transmission

Thin Section Bearings

Thin Section Angular Contact Ball Bearings

✅ Meets Your Design Requirements

Angular contact design handles combined radial and axial loads simultaneously

Ultra-thin, constant cross-section for space-saving and lightweight applications, reducing material usage

✅ Wide Range of Sizes & Precision Grades

Bore sizes（Inner diameter) Range: 25.4mm (1.000inch) to 508mm (20.000inch) (based on provided model dimensions, e.g., NB.KAA10AG0 has d=25.4mm, NB.KG200ARO has d=508mm)

✅ Multiple Material Options

Chrome Steel (e.g., GCr15, for standard high-performance scenarios), Stainless Steel (for corrosion-resistant needs, as referenced in EFEM wafer handling robot applications), and potentially hybrid ceramic materials (implied by suitability for high-speed/vacuum environments)

✅ Delivery Time

Most standard models in stock (consistent with manufacturer's ability to serve diverse industries promptly)

Custom orders delivered in as fast as 7–20 days (to meet specific design timelines for high-end equipment)

✅ Factory Pricing with Engineering Support

Serving clients in robotics (robotic joint cores), aerospace (large aircraft electro-optical pod systems), semiconductor (EFEM wafer handling robots), and automation industries

Contact Expert Get a Quote

Techspecs

Angular Contact Ball Thin Section Bearings
Bearing Model	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				Weight
	d	D	Cor	Cr	Coa	Ca	Kg
NB.KAA10AG0	1.000	1.375	1510	670	4310	2000	0.011
	25.400	34.925
NB.KAA15AG0	1.500	1.875	2130	890	6130	3250	0.017
	38.100	47.625
NB.KAA17AG0	1.750	2.125	2220	2060	6760	3600	0.020
	44.450	53.975
Bearing Model	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				Weight
	d	D	Cor	Cr	Coa	Ca	Kg
NB.KA020AR0	2.000	2.500	3510	1470	10140	4270	0.045
	50.800	63.500
NB.KA025AR0	2.500	3.000	4270	1690	12360	4271	0.054
	63.500	76.200
NB.KA030AR0	3.000	3.500	5070	1910	14620	4272	0.064
	76.200	88.900
NB.KA035AR0	3.500	4.000	5830	2090	16850	4273	0.077
	88.900	101.600
NB.KA040AR0	4.000	4.500	6630	2270	19110	4274	0.086
	101.600	114.300
NB.KA042AR0	4.250	4.750	7020	2360	20230	4275	0.091
	107.950	120.650
NB.KA045AR0	4.500	5.000	7380	2450	21380	4276	0.095
	114.300	127.000
NB.KA047AR0	4.750	5.250	7780	2530	22490	4277	0.100
	120.650	133.350
NB.KA050AR0	5.000	5.500	8180	2620	23600	4278	0.104
	127.000	139.700
NB.KA055AR0	5.500	6.000	8980	2760	25870	4279	0.113
	139.700	152.400
NB.KA060AR0	6.000	6.500	9740	2930	28090	4280	0.127
	152.400	165.100
NB.KA065AR0	6.500	7.000	10540	3070	30360	4281	0.136
	165.100	177.800
NB.KA070AR0	7.000	7.500	11290	3250	32630	4282	0.145
	177.800	190.500
NB.KA075AR0	7.500	8.000	12090	3380	34850	4283	0.154
	190.500	203.200
NB.KA080AR0	8.000	8.500	12850	3510	37120	4284	0.163
	203.200	215.900
NB.KA090AR0	9.000	9.500	14400	3780	41610	4285	0.186
	228.600	241.300
NB.KA100AR0	10.000	10.500	15960	4050	46100	4286	0.204
	254.000	266.700
NB.KA110AR0	11.000	11.500	17510	4310	50580	4287	0.227
	279.400	292.100
NB.KA120AR0	12.000	12.500	19070	4580	55070	4288	0.245
	304.800	317.500
Bearing Model	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				Weight
	d	D	Cor	Cr	Coa	Ca	Kg
NB.KB020AR0	2.000	2.625	4850	2130	14000	6130	0.068
	50.800	66.675
NB.KB025AR0	2.500	3.125	5960	2450	17160	6131	0.086
	63.500	79.375
NB.KB030AR0	3.000	3.625	6890	2710	19870	6132	0.100
	76.200	92.075
NB.KB035AR0	3.500	4.125	7960	2980	23030	6133	0.122
	88.900	104.775
NB.KB040AR0	4.000	4.625	9070	3250	26180	6134	0.136
	101.600	117.475
NB.KB042AR0	4.250	4.875	9560	3330	27560	6135	0.141
	107.950	123.825
NB.KB045AR0	4.500	5.125	10000	3470	28890	6136	0.154
	114.300	130.175
NB.KB047AR0	4.750	5.375	10620	3600	30720	6137	0.159
	120.650	136.525
NB.KB050AR0	5.000	5.625	11110	3690	32050	6138	0.168
	127.000	142.875
NB.KB055AR0	5.500	6.125	12180	3960	35200	6139	0.181
	139.700	155.575
NB.KB060AR0	6.000	6.625	13290	4180	38360	6140	0.200
	152.400	168.275
NB.KB065AR0	6.500	7.125	14220	4360	41070	6141	0.213
	165.100	180.975
NB.KB070AR0	7.000	7.625	15340	4580	44270	6142	0.227
	177.800	193.675
NB.KB075AR0	7.500	8.125	16450	4800	47430	6143	0.245
	190.500	206.375
NB.KB080AR0	8.000	8.625	17510	5020	50580	6144	0.259
	203.200	219.075
NB.KB090AR0	9.000	9.625	19560	5420	56450	6145	0.290
	228.600	244.475
NB.KB100AR0	10.000	10.625	21740	5780	62760	6146	0.322
	254.000	269.875
NB.KB110AR0	11.000	11.625	23780	6130	68630	6147	0.354
	279.400	295.275
NB.KB120AR0	12.000	12.625	25960	6530	74940	6148	0.386
	304.800	320.675
NB.KB140AR0	14.000	14.625	30050	7200	86680	6149	0.445
	355.600	371.475
NB.KB160AR0	16.000	16.625	34270	7870	98900	6150	0.509
	406.400	422.275
NB.KB180AR0	18.000	18.625	38490	8490	111080	6151	0.572
	457.200	473.075
NB.KB200AR0	20.000	20.625	42720	9110	123260	6152	0.635
	508.000	523.875
Bearing Model	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				Weight
	d	D	Cor	Cr	Coa	Ca	Kg
NB.KC040AR0	4.000	4.750	11340	4270	32720	12310	0.200
	101.600	120.650
NB.KC042AR0	4.250	5.000	12050	4450	34760	12311	0.209
	107.900	127.000
NB.KC045AR0	4.500	5.250	12710	4620	36760	12312	0.222
	114.300	133.350
NB.KC047AR0	4.750	5.000	13420	4760	38760	12313	0.231
	120.650	139.700
NB.KC050AR0	5.000	5.750	14140	4930	40760	12314	0.245
	127.000	146.050
NB.KC055AR0	5.500	6.250	15290	5200	44090	12315	0.263
	139.700	158.750
NB.KC060AR0	6.000	6.750	16670	5510	48100	12316	0.290
	152.400	171.450
NB.KC065AR0	6.500	7.250	18050	5820	52100	12317	0.308
	165.100	184.150
NB.KC070AR0	7.000	7.750	19200	6050	55430	12318	0.336
	177.800	196.850
NB.KC075AR0	7.500	8.250	20580	6360	59470	12319	0.354
	190.500	209.550
NB.KC080AR0	8.000	8.750	22010	6620	63480	12320	0.381
	203.200	222.300
NB.KC090AR0	9.000	9.750	24540	7110	70810	12321	0.445
	228.600	247.650
NB.KC100AR0	10.000	10.750	27290	7650	78810	12322	0.472
	254.000	273.050
NB.KC110AR0	11.000	11.750	29870	8130	86190	12323	0.517
	279.400	298.450
NB.KC120AR0	12.000	12.750	32400	8580	93520	12324	0.558
	304.800	323.850
NB.KC140AR0	14.000	14.750	37740	9510	108900	12325	0.649
	355.600	374.650
NB.KC160AR0	16.000	16.750	43030	10360	124240	12326	0.739
	406.400	425.450
NB.KC180AR0	18.000	18.750	48360	11200	139620	12327	0.830
	457.200	476.250
NB.KC200AR0	20.000	20.750	53470	11960	154330	12328	0.921
	508.000	527.050
Bearing Model	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				Weight
	d	D	Cor	Cr	Coa	Ca	Kg
NB.KD040AR0	4.000	5.000	15780	6580	45610	18940	0.363
	101.600	127.000
NB.KD042AR0	4.250	5.250	16670	6800	48140	19650	0.381
	107.950	133.350
NB.KD045AR0	4.500	5.500	17560	7020	50670	20310	0.400
	114.300	139.700
NB.KD047AR0	4.750	5.750	18450	7290	53210	20980	0.422
	120.650	146.050
NB.KD050AR0	5.000	6.000	19290	7510	55740	21650	0.445
	127.000	152.400
NB.KD055AR0	5.500	6.500	21070	7960	60810	22940	0.481
	139.700	165.100
NB.KD060AR0	6.000	7.000	22800	8400	65880	24180	0.522
	152.400	177.800
NB.KD065AR0	6.500	7.500	24580	8800	70940	25430	0.562
	165.100	190.500
NB.KD070AR0	7.000	8.000	26310	9200	76010	26630	0.603
	177.800	203.200
NB.KD075AR0	7.500	8.500	28090	9650	81080	27780	0.644
	190.500	215.900
NB.KD080AR0	8.000	9.000	29830	10050	86140	28940	0.689
	203.200	228.600
NB.KD090AR0	9.000	10.000	33340	10800	96280	31160	0.767
	228.600	254.000
NB.KD100AR0	10.000	11.000	36850	11560	106410	33340	0.848
	254.000	279.400
NB.KD110AR0	11.000	12.000	40360	12270	116550	35380	0.930
	279.400	304.800
NB.KD120AR0	12.000	13.000	43870	12980	126680	37430	1.010
	304.800	330.200
NB.KD140AR0	14.000	15.000	50900	14310	146950	41290	1.170
	355.600	3810.000
NB.KD160AR0	16.000	17.000	57920	15600	167220	45030	1.330
	406.400	431.800
NB.KD180AR0	18.000	19.000	64940	16850	187490	48580	1.490
	457.200	482.600
NB.KD200AR0	20.000	21.000	71970	18050	207760	52050	1.660
	508.000	533.400
Bearing Model	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				Weight
	d	D	Cor	Cr	Coa	Ca	Kg
NB.KF040AR0	4.000	5.500	28230	12980	81520	37430	0.875
	101.600	139.700
NB.KF042AR0	4.250	5.750	29340	13290	84680	38360	0.930
	107.950	146.050
NB.KF045AR0	4.500	6.000	31520	13960	90950	40230	0.975
	114.300	152.400
NB.KF047AR0	4.750	6.250	32580	14270	94060	41160	1.040
	120.650	158.750
NB.KF050AR0	5.000	6.500	33650	14580	97210	42050	1.090
	127.000	165.100
NB.KF055AR0	5.500	7.000	36940	15510	106590	44720	1.180
	139.700	177.800
NB.KF060AR0	6.000	7.500	40180	16400	116020	47340	1.240
	152.400	190.500
NB.KF065AR0	6.500	8.000	43430	17290	125440	49870	1.350
	165.100	203.200
NB.KF070AR0	7.000	8.500	46720	18140	134820	52320	1.450
	177.800	215.900
NB.KF075AR0	7.500	9.000	48900	18670	141080	53920	1.560
	190.500	228.600
NB.KF080AR0	8.000	9.500	52140	19510	150510	56320	1.660
	203.200	241.300
NB.KF090AR0	9.000	10.500	58630	21110	169310	60900	1.810
	228.600	266.700
NB.KF100AR0	10.000	11.500	64100	22360	185000	64590	2.020
	254.000	292.100
NB.KF110AR0	11.000	12.500	70590	23870	203800	68900	2.180
	279.400	317.500
NB.KF120AR0	12.000	13.500	76010	25070	219490	72410	2.380
	304.800	342.900
NB.KF140AR0	14.000	15.500	87970	27650	253990	79790	2.720
	355.600	393.700
NB.KF160AR0	16.000	17.500	99920	30100	288440	86860	3.220
	406.400	444.500
NB.KF180AR0	18.000	19.500	112950	32670	326090	94280	3.580
	457.200	495.300
NB.KF200AR0	20.000	21.500	124910	34940	360580	100810	4.040
	508.000	546.100
Bearing Model	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				Weight
	d	D	Cor	Cr	Coa	Ca	Kg
NB.KG040AR0	4.000	6.000	42140	20980	121620	60590	1.640
	101.600	152.400
NB.KG042AR0	4.250	6.250	44230	21690	227710	62630	1.740
	107.950	158.750
NB.KG045AR0	4.500	6.500	46360	22360	133800	64590	1.790
	114.300	165.100
NB.KG047AR0	4.750	6.750	48450	23030	139840	66540	1.890
	120.650	171.450
NB.KG050AR0	5.000	7.000	50540	23690	145930	68450	2.000
	127.000	177.800
NB.KG055AR0	5.500	7.500	54760	25030	158110	72190	2.150
	139.700	190.500
NB.KG060AR0	6.000	8.000	58990	26270	170240	75830	2.300
	152.400	203.200
NB.KG065AR0	6.500	8.500	63210	27520	182420	79430	2.450
	165.100	215.900
NB.KG070AR0	7.000	9.000	67390	28720	194600	82900	2.660
	177.800	228.600
NB.KG075AR0	7.500	9.500	71610	29920	206740	86320	2.810
	190.500	241.300
NB.KG080AR0	8.000	10.000	75830	31070	218920	89700	2.970
	203.200	254.000
NB.KG090AR0	9.000	11.000	84280	33340	243230	96190	3.270
	228.600	279.400
NB.KG100AR0	10.000	12.000	92680	35520	267550	102500	3.630
	254.000	304.800
NB.KG110AR0	11.000	13.000	101120	37650	291860	108640	3.940
	279.400	330.200
NB.KG120AR0	12.000	14.000	109530	39690	316220	114590	4.300
	304.800	355.600
NB.KG140AR0	14.000	16.000	126370	43650	364850	126060	4.940
	355.600	406.400
NB.KG160AR0	16.000	18.000	143220	47470	413470	137040	5.620
	406.400	457.200
NB.KG180AR0	18.000	20.000	160110	51120	462280	147570	6.260
	457.200	508.000
NB.KG200AR0	20.000	22.000	176960	54670	510730	157750	6.890
	508.000	558.800

8mm Series - Angular Contact Bearing
Bearing Model	Inner Dia	Outer Dia	Width	Dynamic Load		Static Load		Weight
	d	D	B	Radial	Axial	Radial	Axial	Weight
	(mm)	(mm)	(mm)	(N)	(N)	(N)	(N)	(kg)
NB.K02508AR0	25	41	8	2667	5502	3648	10523	0.06
NB.K05008AR0	50	66	8	3599	8032	6433	18574	0.08
NB.K06008AR0	60	76	8	4001	9071	7718	22291	0.09
NB.K07008AR0	70	86	8	4315	9895	8787	25380	0.1
NB.K08008AR0	80	96	8	4609	10689	9865	28469	0.12
NB.K09008AR0	90	106	8	4952	11591	11150	32185	0.13
NB.K10008AR0	100	116	8	5227	12327	12219	35284	0.14
NB.K11008AR0	110	126	8	5502	13033	13298	38383	0.15
NB.K12008AR0	120	136	8	5757	13729	14367	41472	0.16
NB.K13008AR0	130	146	8	6061	14533	15651	45189	0.17
NB.K14008AR0	140	156	8	6306	15191	16730	48278	0.18
NB.K15008AR0	150	166	8	6541	15838	17799	51377	0.2
NB.K16008AR0	160	176	8	6825	16583	19084	55094	0.2
NB.K17008AR0	170	186	8	7061	17201	20153	58183	0.21
NB.K18008AR0	180	196	8	7277	17809	21231	61282	0.22
NB.K19008AR0	190	206	8	7541	18525	22516	64998	0.23
NB.K20008AR0	200	216	8	7757	19103	23585	68097	0.23
NB.K25008AR0	250	266	8	8797	22006	29165	84190	0.28
NB.K30008AR0	300	316	8	9797	24830	34951	100901	0.33
NB.K32008AR0	320	336	8	10189	25939	37314	107706	0.36
NB.K34008AR0	340	356	8	10523	26919	39452	113894	0.38
NB.K36008AR0	360	376	8	10885	27988	41816	120710	0.4

13mm Series - Angular Contact Bearing
Bearing Model	Inner Dia	Outer Dia	Width	Dynamic Load		Static Load		Weight
	d	D	B	Radial	Axial	Radial	Axial	Weight
	(mm)	(mm)	(mm)	(N)	(N)	(N)	(N)	(kg)
NB.K02513AR0	25	51	13	5433	10542	6041	17346	0.13
NB.K05013AR0	50	76	13	7110	15171	10434	30106	0.2
NB.K06013AR0	60	86	13	7669	16730	12082	34863	0.22
NB.K07013AR0	70	96	13	8434	18691	14278	41198	0.25
NB.K08013AR0	80	106	13	8953	20104	15916	45954	0.28
NB.K09013AR0	90	116	13	9454	21477	17564	50710	0.31
NB.K10013AR0	100	126	13	9934	22791	19211	55466	0.34
NB.K11013AR0	110	136	13	10405	24075	20859	60223	0.37
NB.K12013AR0	120	146	13	10866	25331	22506	64969	0.39
NB.K13013AR0	130	156	13	11484	26949	24703	71314	0.42
NB.K14013AR0	140	166	13	11915	28135	26350	76070	0.45
NB.K15013AR0	150	176	13	12337	29292	27998	80817	0.48
NB.K16013AR0	160	186	13	12758	30440	29646	85573	0.51
NB.K17013AR0	170	196	13	13161	31548	31293	90239	0.54
NB.K18013AR0	180	206	13	13553	32646	32941	95085	0.56
NB.K19013AR0	190	216	13	13945	33725	34588	99842	0.59
NB.K20013AR0	200	226	13	14475	35137	36775	106177	0.62
NB.K25013AR0	250	276	13	16269	40207	45013	129948	0.76
NB.K30013AR0	300	326	13	18044	45287	53799	155308	0.9
NB.K32013AR0	320	346	13	18672	47111	57094	164811	0.96
NB.K34013AR0	340	366	13	19398	49200	60929	175902	1.02
NB.K36013AR0	360	386	13	19986	50955	64234	185414	1.07

20mm Series - Angular Contact Bearing
Bearing Model	Inner Dia	Outer Dia	Width	Dynamic Load		Static Load		Weight
	d	D	B	Radial	Axial	Radial	Axial	Weight
	(mm)	(mm)	(mm)	(N)	(N)	(N)	(N)	(kg)
NB.K02520AR0	25	65	20	11327	20741	11121	32087	0.31
NB.K05020AR0	50	90	20	14318	29155	18525	53485	0.49
NB.K06020AR0	60	100	20	15171	31685	20996	60615	0.56
NB.K07020AR0	70	110	20	16014	34127	23467	67744	0.62
NB.K08020AR0	80	120	20	16838	36481	25939	74874	0.69
NB.K09020AR0	90	130	20	18152	39884	29646	85573	0.77
NB.K10020AR0	100	140	20	18917	42071	32117	92702	0.84
NB.K11020AR0	110	150	20	19662	44199	34588	99842	0.91
NB.K12020AR0	120	160	20	20398	46278	37050	106971	0.97
NB.K13020AR0	130	170	20	21124	48317	39521	114100	1.04
NB.K14020AR0	140	180	20	21830	50308	41992	121230	1.11
NB.K15020AR0	150	190	20	22938	53221	45699	131929	1.19
NB.K16020AR0	160	200	20	23605	55123	48170	139058	1.26
NB.K17020AR0	170	210	20	24262	56986	50465	146188	1.32
NB.K18020AR0	180	220	20	24909	58830	53113	153317	1.39
NB.K19020AR0	190	230	20	25546	60635	55584	160447	1.46
NB.K20020AR0	200	240	20	26537	63302	59281	171146	1.54
NB.K25020AR0	250	290	20	29822	72648	72873	210372	1.89
NB.K30020AR0	300	340	20	32529	80630	85230	246029	2.23
NB.K32020AR0	320	360	20	33872	84484	91408	263858	2.37
NB.K34020AR0	340	380	20	34872	87505	96341	278117	2.51
NB.K36020AR0	360	400	20	36138	91202	102519	295945	2.66

Description

Thin-section angular contact ball bearings form a specific angle contact area between the rolling elements and the inner and outer rings through the contact angle design,and can simultaneously bear combined radial and axial loads. Their thin-section structure reduces the amount of material used,making them suitable for high-end equipment that is sensitive to weight and space. Key Performance: High rotational speed capability: Low friction design and precise machining support ultra-high-speed operation. Optimization for combined loads: The larger the contact angle,the stronger the axial load capacity. Preload adjustment: Eliminate internal clearance through preloading,improve rigidity and reduce vibration.

Features

Adjustable contact angle

Supports the load direction requirements in different directions (unidirectional or bidirectional thrust).

Ultra-thin cross-section

The cross-section thickness is constant,suitable for compact mechanical designs.

Low friction and high rotational speed

Precision polishing and optimized lubrication,with a maximum rotational speed of up to 50,000 RPM.

High rigidity

The preloading design enhances system stability,suitable for precise positioning scenarios.

Working Principle

Contact angle mechanism: The rolling elements form an inclined contact with the inner and outer rings,decomposing the axial force into radial and axial components. Effect of preload: Eliminate internal clearance and reduce fretting wear during high-speed operation. Lubrication methods: Grease lubrication: Maintenance-free design,suitable for sealed bearings. Oil lubrication: Supports ultra-high-speed or high-temperature environments. Sealing options: Open type: Requires external lubrication and has good heat dissipation performance. Shielded type: Dust-proof design,retaining the lubricating grease. Sealed type: Fully enclosed protection,suitable for harsh environments.

Application & Case

Semiconductor equipment: High-precision rotating shafts of wafer robotic arms.

Power tools: Support for high-speed electric spindles.

Precision instruments: Adjustment mechanisms of optical platforms.

New energy vehicles: Motor rotor bearings.

Aerospace: Satellite antenna drive systems.

Precision Thin-Wall Bearings for Large Aircraft Electro-Optical Pod Systems

Stainless Steel Bearings for EFEM Wafer Handling Robots

Luoyang Newbee Transmission: Reshaping Robotic Joint Cores with Thin-Section Four-Point Contact Ball Bearing Technology

Newbee Transmission Technical Bulletin: Precision Preload Solutions for Angular Contact Ball Bearings

FAQ

What are the differences between angular contact bearings and four-point contact bearings?

Angular contact bearings optimize the direction of the axial load through the contact angle and are suitable for combined loads; four-point contact bearings support moment loads through the four-point contact design and are suitable for cantilever structures.

How to select the contact angle?

A: 15° (for low axial load), 25° (general-purpose type), 40° (for high axial load requirements).

Do they need to be used in pairs?

When there is a bidirectional axial load, they need to be installed in a back-to-back or face-to-face paired manner to balance the thrust.

Can they be used in a vacuum environment?

Stainless steel or ceramic materials need to be selected, and dry film lubrication or a special sealing design should be adopted.

CNC Machinery

Precision Bearings

Non-standard Machinery Parts

Contact Info

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Thin Section Angular Contact Ball Bearings

Techspecs

Description

Features

Adjustable contact angle

Ultra-thin cross-section

Low friction and high rotational speed

High rigidity

Working Principle

Application & Case

Precision Thin-Wall Bearings for Large Aircraft Electro-Optical Pod Systems

Stainless Steel Bearings for EFEM Wafer Handling Robots

Luoyang Newbee Transmission: Reshaping Robotic Joint Cores with Thin-Section Four-Point Contact Ball Bearing Technology

Newbee Transmission Technical Bulletin: Precision Preload Solutions for Angular Contact Ball Bearings

FAQ

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