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

Thin Section Bearings

Thin Section Angular Contact Ball Bearings

Materials:

Bearing rings and rolling elements: GCr15 high-carbon chromium steel (with high wear resistance) or 440C stainless steel (corrosion-resistant).

Size range: 20 mm - 1000 mm

Contact angle range: 15°,25°,30°,40° (customizable according to requirements).

Metric series: width 8mm 13mm 20mm

Inner diameter：20 mm - 1000 mm

Cross-section ：4.7625×4.7625 mm - 25.4×25.4 mm.

Accuracy grades: P0, P6, P5, P4

Sealing options: Open type, rubber seal (RS), metal dust cover (Z)

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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.

Techspecs

NBAA系列
ltem No.	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				weight
	d	D	Cor	Cr	Coa	Ca	Kg
NBAA10AG0	1.000	1.375	1510	670	4310	2000	0.011
	25.400	34.925
NBAA15AG0	1.500	1.875	2130	890	6130	3250	0.017
	38.100	47.625
NBAA17AG0	1.750	2.125	2220	2060	6760	3600	0.020
	44.450	53.975
NBA系列
Item No.	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				weight
	d	D	Cor	Cr	Coa	Ca	Kg
NBA020ARO	2.000	2.500	3510	1470	10140	4270	0.045
	50.800	63.500
NBA025ARO	2.500	3.000	4270	1690	12360	4271	0.054
	63.500	76.200
NBA030ARO	3.000	3.500	5070	1910	14620	4272	0.064
	76.200	88.900
NBA035ARO	3.500	4.000	5830	2090	16850	4273	0.077
	88.900	101.600
NBA040ARO	4.000	4.500	6630	2270	19110	4274	0.086
	101.600	114.300
NBA042ARO	4.250	4.750	7020	2360	20230	4275	0.091
	107.950	120.650
NBA045AR0	4.500	5.000	7380	2450	21380	4276	0.095
	114.300	127.000
NBA047ARO	4.750	5.250	7780	2530	22490	4277	0.100
	120.650	133.350
NBA050ARO	5.000	5.500	8180	2620	23600	4278	0.104
	127.000	139.700
NBA055ARO	5.500	6.000	8980	2760	25870	4279	0.113
	139.700	152.400
NBA060AR0	6.000	6.500	9740	2930	28090	4280	0.127
	152.400	165.100
NBA065ARO	6.500	7.000	10540	3070	30360	4281	0.136
	165.100	177.800
NBA070ARO	7.000	7.500	11290	3250	32630	4282	0.145
	177.800	190.500
NBA075ARO	7.500	8.000	12090	3380	34850	4283	0.154
	190.500	203.200
NBA080ARO	8.000	8.500	12850	3510	37120	4284	0.163
	203.200	215.900
NBA090ARO	9.000	9.500	14400	3780	41610	4285	0.186
	228.600	241.300
NBA100ARO	10.000	10.500	15960	4050	46100	4286	0.204
	254.000	266.700
NBA110ARO	11.000	11.500	17510	4310	50580	4287	0.227
	279.400	292.100
NBA120ARO	12.000	12.500	19070	4580	55070	4288	0.245
	304.800	317.500
NBB系列
Item No.	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				weight
	d	D	Cor	Cr	Coa	Ca	Kg
NBB020ARO	2.000	2.625	4850	2130	14000	6130	0.068
	50.800	66.675
NBB025ARO	2.500	3.125	5960	2450	17160	6131	0.086
	63.500	79.375
NBB030ARO	3.000	3.625	6890	2710	19870	6132	0.100
	76.200	92.075
NBB035ARO	3.500	4.125	7960	2980	23030	6133	0.122
	88.900	104.775
NBB040ARO	4.000	4.625	9070	3250	26180	6134	0.136
	101.600	117.475
NBB042ARO	4.250	4.875	9560	3330	27560	6135	0.141
	107.950	123.825
NBB045ARO	4.500	5.125	10000	3470	28890	6136	0.154
	114.300	130.175
NBB047ARO	4.750	5.375	10620	3600	30720	6137	0.159
	120.650	136.525
NBB050ARO	5.000	5.625	11110	3690	32050	6138	0.168
	127.000	142.875
NBB055ARO	5.500	6.125	12180	3960	35200	6139	0.181
	139.700	155.575
NBB060ARO	6.000	6.625	13290	4180	38360	6140	0.200
	152.400	168.275
NBB065ARO	6.500	7.125	14220	4360	41070	6141	0.213
	165.100	180.975
NBB070ARO	7.000	7.625	15340	4580	44270	6142	0.227
	177.800	193.675
NBB075ARO	7.500	8.125	16450	4800	47430	6143	0.245
	190.500	206.375
NBB080ARO	8.000	8.625	17510	5020	50580	6144	0.259
	203.200	219.075
NBB090ARO	9.000	9.625	19560	5420	56450	6145	0.290
	228.600	244.475
NBB100ARO	10.000	10.625	21740	5780	62760	6146	0.322
	254.000	269.875
NBB110ARO	11.000	11.625	23780	6130	68630	6147	0.354
	279.400	295.275
NBB120ARO	12.000	12.625	25960	6530	74940	6148	0.386
	304.800	320.675
NBB140ARO	14.000	14.625	30050	7200	86680	6149	0.445
	355.600	371.475
NBB160ARO	16.000	16.625	34270	7870	98900	6150	0.509
	406.400	422.275
NBB180ARO	18.000	18.625	38490	8490	111080	6151	0.572
	457.200	473.075
NBB200AR0	20.000	20.625	42720	9110	123260	6152	0.635
	508.000	523.875
NBC系列
ltem No.	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				weight
	d	D	Cor	Cr	Coa	Ca	Kg
NBC040ARO	4.000	4.750	11340	4270	32720	12310	0.200
	101.600	120.650
NBC042ARO	4.250	5.000	12050	4450	34760	12311	0.209
	107.900	127.000
NBC045ARO	4.500	5.250	12710	4620	36760	12312	0.222
	114.300	133.350
NBC047AR0	4.750	5.000	13420	4760	38760	12313	0.231
	120.650	139.700
NBC050ARO	5.000	5.750	14140	4930	40760	12314	0.245
	127.000	146.050
NBC055ARO	5.500	6.250	15290	5200	44090	12315	0.263
	139.700	158.750
NBC060ARO	6.000	6.750	16670	5510	48100	12316	0.290
	152.400	171.450
NBC065ARO	6.500	7.250	18050	5820	52100	12317	0.308
	165.100	184.150
NBC070ARO	7.000	7.750	19200	6050	55430	12318	0.336
	177.800	196.850
NBC075ARO	7.500	8.250	20580	6360	59470	12319	0.354
	190.500	209.550
NBC080ARO	8.000	8.750	22010	6620	63480	12320	0.381
	203.200	222.300
NBC090ARO	9.000	9.750	24540	7110	70810	12321	0.445
	228.600	247.650
NBC100ARO	10.000	10.750	27290	7650	78810	12322	0.472
	254.000	273.050
NBC110ARO	11.000	11.750	29870	8130	86190	12323	0.517
	279.400	298.450
NBC120ARO	12.000	12.750	32400	8580	93520	12324	0.558
	304.800	323.850
NBC140ARO	14.000	14.750	37740	9510	108900	12325	0.649
	355.600	374.650
NBC160ARO	16.000	16.750	43030	10360	124240	12326	0.739
	406.400	425.450
NBC180ARO	18.000	18.750	48360	11200	139620	12327	0.830
	457.200	476.250
NBC200ARO	20.000	20.750	53470	11960	154330	12328	0.921
	508.000	527.050
NBD系列
ltem No.	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				weight
	d	D	Cor	Cr	Coa	Ca	Kg
NBD040ARO	4.000	5.000	15780	6580	45610	18940	0.363
	101.600	127.000
NBD042ARO	4.250	5.250	16670	6800	48140	19650	0.381
	107.950	133.350
NBD045ARO	4.500	5.500	17560	7020	50670	20310	0.400
	114.300	139.700
NBD047ARO	4.750	5.750	18450	7290	53210	20980	0.422
	120.650	146.050
NBD050ARO	5.000	6.000	19290	7510	55740	21650	0.445
	127.000	152.400
NBD055ARO	5.500	6.500	21070	7960	60810	22940	0.481
	139.700	165.100
NBD060ARO	6.000	7.000	22800	8400	65880	24180	0.522
	152.400	177.800
NBD065ARO	6.500	7.500	24580	8800	70940	25430	0.562
	165.100	190.500
NBD070ARO	7.000	8.000	26310	9200	76010	26630	0.603
	177.800	203.200
NBD075ARO	7.500	8.500	28090	9650	81080	27780	0.644
	190.500	215.900
NBD080ARO	8.000	9.000	29830	10050	86140	28940	0.689
	203.200	228.600
NBD090ARO	9.000	10.000	33340	10800	96280	31160	0.767
	228.600	254.000
NBD100ARO	10.000	11.000	36850	11560	106410	33340	0.848
	254.000	279.400
NBD110ARO	11.000	12.000	40360	12270	116550	35380	0.930
	279.400	304.800
NBD120ARO	12.000	13.000	43870	12980	126680	37430	1.010
	304.800	330.200
NBD140ARO	14.000	15.000	50900	14310	146950	41290	1.170
	355.600	3810.000
NBD160ARO	16.000	17.000	57920	15600	167220	45030	1.330
	406.400	431.800
NBD180ARO	18.000	19.000	64940	16850	187490	48580	1.490
	457.200	482.600
NBD200ARO	20.000	21.000	71970	18050	207760	52050	1.660
	508.000	533.400
NBF列
ltem No.	Dimension		Basic Cap				Unit
	(inch/mm)		(N)				weight
	d	D	Cor	Cr	Coa	Ca	Kg
NBF040ARO	4.000	5.500	28230	12980	81520	37430	0.875
	101.600	139.700
NBF042ARO	4.250	5.750	29340	13290	84680	38360	0.930
	107.950	146.050
NBF045ARO	4.500	6.000	31520	13960	90950	40230	0.975
	114.300	152.400
NBF047ARO	4.750	6.250	32580	14270	94060	41160	1.040
	120.650	158.750
NBF050ARO	5.000	6.500	33650	14580	97210	42050	1.090
	127.000	165.100
NBF055ARO	5.500	7.000	36940	15510	106590	44720	1.180
	139.700	177.800
NBF060ARO	6.000	7.500	40180	16400	116020	47340	1.240
	152.400	190.500
NBF065ARO	6.500	8.000	43430	17290	125440	49870	1.350
	165.100	203.200
NBF070ARO	7.000	8.500	46720	18140	134820	52320	1.450
	177.800	215.900
NBF075ARO	7.500	9.000	48900	18670	141080	53920	1.560
	190.500	228.600
NBF080ARO	8.000	9.500	52140	19510	150510	56320	1.660
	203.200	241.300
NBF090ARO	9.000	10.500	58630	21110	169310	60900	1.810
	228.600	266.700
NBF100ARO	10.000	11.500	64100	22360	185000	64590	2.020
	254.000	292.100
NBF110ARO	11.000	12.500	70590	23870	203800	68900	2.180
	279.400	317.500
NBF120ARO	12.000	13.500	76010	25070	219490	72410	2.380
	304.800	342.900
NBF140ARO	14.000	15.500	87970	27650	253990	79790	2.720
	355.600	393.700
NBF160ARC	16.000	17.500	99920	30100	288440	86860	3.220
	406.400	444.500
NBF180ARO	18.000	19.500	112950	32670	326090	94280	3.580
	457.200	495.300
NBF200ARO	20.000	21.500	124910	34940	360580	100810	4.040
	508.000	546.100

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.

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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.

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Thin Section Angular Contact Ball Bearings

Description

Features

Adjustable contact angle

Ultra-thin cross-section

Low friction and high rotational speed

High rigidity

Working Principle

Techspecs

Application & Case

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FAQ

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