4-Pointl Contact-Type X Bearing | High Precision Solutions-LYNBC

4-Pointl Contact-Type X (NBJHA 1/4" x 3/16")

NBJHA SERIES 1/4" x 3/16"
NICE PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
NBJHA10XL0	1.000	1.375	1.140	1.235	290	245	730	370	170	110	–	0.030
	25.400	34.925	28.956	31.369	290	245	730	370	170	110	–	0.014
NBJHA15XL0	1.500	1.875	1.640	1.735	400	295	1,000	460	340	185	–	0.040
	38.100	47.625	41.656	44.069	400	295	1,000	460	340	185	–	0.018
NBJHA17XL0	1.750	2.125	1.890	1.985	460	320	1,140	500	440	230	–	0.050
	44.450	53.975	48.006	50.419	460	320	1,140	500	440	230	–	0.023

4-Pointl Contact-Type X (NBJA 1/4" x 1/4")

NBJA SERIES 1/4" x 1/4"
NICE PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
NBJA020XP0	2.000	2.500	2.186	2.314	680	515	1,710	790	770	435	6	0.100
	50.800	63.500	55.524	58.776	680	515	1,710	790	770	435	6	0.045
NBJA025XP0	2.500	3.000	2.686	2.814	830	585	2,090	910	1,150	600	8	0.130
	63.500	76.200	68.224	71.476	830	585	2,090	910	1,150	600	8	0.059
NBJA030XP0	3.000	3.500	3.186	3.314	990	645	2,470	1,010	1,600	785	12	0.150
	76.200	88.900	80.924	84.176	990	645	2,470	1,010	1,600	785	12	0.068
NBJA035XP0	3.500	4.000	3.686	3.814	1,140	700	2,850	1,110	2,130	985	16	0.180
	88.900	101.600	93.624	96.876	1,140	700	2,850	1,110	2,130	985	16	0.082
NBJA040XP0	4.000	4.500	4.186	4.314	1,290	755	3,220	1,210	2,740	1,205	20	0.190
	101.600	114.300	106.324	109.576	1,290	755	3,220	1,210	2,740	1,205	20	0.086
NBJA042XP0	4.250	4.750	4.436	4.564	1,370	785	3,410	1,260	3,070	1,320	24	0.200
	107.950	120.650	112.674	115.926	1,370	785	3,410	1,260	3,070	1,320	24	0.091
NBJA045XP0	4.500	5.000	4.686	4.814	1,440	810	3,600	1,310	3,420	1,440	28	0.220
	114.300	127.000	119.024	122.276	1,440	810	3,600	1,310	3,420	1,440	28	0.100
NBJA047XP0	4.750	5.250	4.936	5.064	1,520	835	3,790	1,350	3,790	1,565	32	0.230
	120.650	133.350	125.374	128.626	1,520	835	3,790	1,350	3,790	1,565	32	0.104
NBJA050XP0	5.000	5.500	5.186	5.314	1,590	860	3,980	1,400	4,180	1,695	36	0.240
	127.000	139.700	131.724	134.976	1,590	860	3,980	1,400	4,180	1,695	36	0.109
NBJA055XP0	5.500	6.000	5.686	5.814	1,750	910	4,360	1,480	5,020	1,960	44	0.250
	139.700	152.400	144.424	147.676	1,750	910	4,360	1,480	5,020	1,960	44	0.113
NBJA060XP0	6.000	6.500	6.186	6.314	1,900	955	4,740	1,570	5,930	2,240	52	0.280
	152.400	165.100	157.124	160.376	1,900	955	4,740	1,570	5,930	2,240	52	0.127
NBJA065XP0	6.500	7.000	6.686	6.814	2,050	1,000	5,120	1,650	6,910	2,535	61	0.300
	165.100	177.800	169.824	173.076	2,050	1,000	5,120	1,650	6,910	2,535	61	0.136

4-Pointl Contact-Type X (NBJB 5/16" x 5/16")

NBJB SERIES 5/16" x 5/16"
NICE PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
NBJB020XP0	2.000	2.625	2.231	2.393	930	760	2,340	1,130	1,080	660	6	0.160
	50.800	66.675	56.667	60.782	930	760	2,340	1,130	1,080	660	6	0.073
NBJB025XP0	2.500	3.125	2.731	2.893	1,140	850	2,840	1,290	1,600	895	8	0.190
	63.500	79.375	69.367	73.482	1,140	850	2,840	1,290	1,600	895	8	0.086
NBJB030XP0	3.000	3.625	3.231	3.393	1,340	935	3,350	1,440	2,220	1,160	12	0.240
	76.200	92.075	82.067	86.182	1,340	935	3,350	1,440	2,220	1,160	12	0.109
NBJB035XP0	3.500	4.125	3.731	3.893	1,540	1,015	3,860	1,590	2,940	1,450	16	0.290
	88.900	104.775	94.767	98.882	1,540	1,015	3,860	1,590	2,940	1,450	16	0.132
NBJB040XP0	4.000	4.625	4.231	4.393	1,750	1,090	4,370	1,720	3,770	1,765	20	0.300
	101.600	117.475	107.467	111.582	1,750	1,090	4,370	1,720	3,770	1,765	20	0.136
NBJB042XP0	4.250	4.875	4.481	4.643	1,830	1,120	4,570	1,780	4,170	1,915	24	0.310
	107.950	123.825	113.817	117.932	1,830	1,120	4,570	1,780	4,170	1,915	24	0.141
NBJB045XP0	4.500	5.125	4.731	4.893	1,950	1,165	4,880	1,850	4,690	2,105	28	0.330
	114.300	130.175	120.167	124.282	1,950	1,165	4,880	1,850	4,690	2,105	28	0.150
NBJB047XP0	4.750	5.375	4.981	5.143	2,030	1,195	5,080	1,900	5,140	2,265	32	0.340
	120.650	136.525	126.517	130.632	2,030	1,195	5,080	1,900	5,140	2,265	32	0.154
NBJB050XP0	5.000	5.625	5.231	5.393	2,150	1,235	5,380	1,980	5,720	2,465	36	0.380
	127.000	142.875	132.867	136.982	2,150	1,235	5,380	1,980	5,720	2,465	36	0.172
NBJB055XP0	5.500	6.125	5.731	5.893	2,360	1,305	5,890	2,100	6,850	2,845	44	0.410
	139.700	155.575	145.567	149.682	2,360	1,305	5,890	2,100	6,850	2,845	44	0.186
NBJB060XP0	6.000	6.625	6.231	6.393	2,560	1,370	6,400	2,220	8,080	3,245	52	0.440
	152.400	168.275	158.267	162.382	2,560	1,370	6,400	2,220	8,080	3,245	52	0.200
NBJB065XP0	6.500	7.125	6.731	6.893	2,760	1,435	6,910	2,340	9,410	3,670	61	0.470
	165.100	180.975	170.967	175.082	2,760	1,435	6,910	2,340	9,410	3,670	61	0.213

4-Pointl Contact-Type X (NBJU 1/2" x 3/8")

NBJU SERIES 1/2" x 3/8"
NICE PART NUMBER	DIMENSION IN INCHES				CAPACITIES IN POUNDS / IN-LBS						TORQUE MAX NO LOAD [in-lbs]	Appx Weight LBS/KG
	BORE	OUTSIDE DIA	LAND DIA	LAND DIA	RADIAL		THRUST		MOMENT
	B	D	L₁	L₂	STATIC	DYN	STATIC	DYN	STATIC	DYN
NBJU040XP0	4.000	4.750	4.277	4.473	2,100	1,415	5,260	2,210	4,600	2,325	2.9	0.550
	101.600	120.650	108.636	113.614	2,100	1,415	5,260	2,210	4,600	2,325	2.9	0.249
NBJU042XP0	4.250	5.000	4.527	4.723	2,220	1,465	5,560	2,290	5,140	2,540	3.2	0.580
	107.950	127.000	114.986	119.964	2,220	1,465	5,560	2,290	5,140	2,540	3.2	0.263
NBJU045XP0	4.500	5.250	4.777	4.973	2,340	1,510	5,860	2,380	5,710	2,760	3.5	0.610
	114.300	133.350	121.336	126.314	2,340	1,510	5,860	2,380	5,710	2,760	3.5	0.277
NBJU047XP0	4.750	5.500	5.027	5.223	2,460	1,555	6,160	2,460	6,320	2,990	3.9	0.650
	120.650	139.700	127.686	132.664	2,460	1,555	6,160	2,460	6,320	2,990	3.9	0.295
NBJU050XP0	5.000	5.750	5.277	5.473	2,590	1,600	6,460	2,540	6,950	3,225	4.3	0.680
	127.000	146.050	134.036	139.014	2,590	1,600	6,460	2,540	6,950	3,225	4.3	0.308
NBJU055XP0	5.500	6.250	5.777	5.973	2,830	1,685	7,060	2,690	8,300	3,715	5.1	0.740
	139.700	158.750	146.736	151.714	2,830	1,685	7,060	2,690	8,300	3,715	5.1	0.336
NBJU060XP0	6.000	6.750	6.277	6.473	3,070	1,770	7,660	2,840	9,770	4,235	6.1	0.810
	152.400	171.450	159.436	164.414	3,070	1,770	7,660	2,840	9,770	4,235	6.1	0.367
NBJU065XP0	6.500	7.250	6.777	6.973	3,310	1,850	8,270	2,990	11,370	4,775	7	0.870
	165.100	184.150	172.136	177.114	3,310	1,850	8,270	2,990	11,370	4,775	7	0.395
NBJU070XP0	7.000	7.750	7.277	7.473	3,550	1,930	8,870	3,130	13,080	5,340	8.1	0.930
	177.800	196.850	184.836	189.814	3,550	1,930	8,870	3,130	13,080	5,340	8.1	0.422
NBJU075XP0	7.500	8.250	7.777	7.973	3,790	2,005	9,470	3,270	14,910	5,930	9.2	0.990
	190.500	209.550	197.536	202.514	3,790	2,005	9,470	3,270	14,910	5,930	9.2	0.449
NBJU080XP0	8.000	8.750	8.277	8.473	4,030	2,080	10,070	3,410	16,870	6,540	10.4	1.060
	203.200	222.250	210.236	215.214	4,030	2,080	10,070	3,410	16,870	6,540	10.4	0.481
NBJU090XP0	9.000	9.750	9.277	9.473	4,510	2,225	11,270	3,670	21,130	7,830	13	1.180
	228.600	247.650	235.636	240.614	4,510	2,225	11,270	3,670	21,130	7,830	13	0.535
NBJU100XP0	10.000	10.750	10.277	10.473	4,990	2,365	12,470	3,930	25,880	9,200	16	1.310
	254.000	273.050	261.036	266.014	4,990	2,365	12,470	3,930	25,880	9,200	16	0.594
NBJU110XP0	11.000	11.750	11.277	11.473	5,470	2,495	13,680	4,180	31,110	10,650	19.2	1.430
	279.400	298.450	286.436	291.414	5,470	2,495	13,680	4,180	31,110	10,650	19.2	0.649
NBJU120XP0	12.000	12.750	12.277	12.473	5,950	2,620	14,880	4,420	36,830	12,175	22.8	1.560
	304.800	323.850	311.836	316.814	5,950	2,620	14,880	4,420	36,830	12,175	22.8	0.708

X-type Four-point Contact Ball Thin Section Bearings

Sealed X-type four-point contact ball thin section bearings are a specialized type of rolling-element bearing that offers a combination of high load capacity, compact size, and reliable performance. They are well-suited for demanding applications where space is limited and the bearing must withstand complex loading conditions. The sealed design provides added protection against contamination and extends the life of the bearing. When selecting these bearings, it's crucial to carefully consider the load requirements, speed requirements, environmental conditions, and other factors to ensure optimal performance.

Key Features

X-Type (Four-Point Contact Design)

The "X-type" configuration means that each ball makes contact with the raceway at four points.

This allows the bearing to accommodate axial loads in both directions, as well as radial and moment loads.

Eliminates the need for paired bearings in applications requiring combined load handling.

Thin Section Design

These bearings have a very small cross-section compared to their diameter, making them ideal for compact spaces.

Reduces weight while maintaining high stiffness.

Sealed Construction

Equipped with seals to prevent contamination from dust, debris, and moisture.

Seals also help retain lubrication, ensuring longer service life and reduced maintenance.

Material Options

Typically available in 52100 chrome steel or stainless steel for corrosion resistance.

Can be coated or treated for additional protection.

Applications

Sealed X-type four-point contact ball thin section bearings are used in a wide range of applications where high load capacity, compact size, and reliable performance are essential. Some common examples include:

Robotics: Robotic arms and joints require bearings that can handle complex loads and fit within tight spaces.

Aerospace: Aircraft components, such as control surfaces and landing gear, often use thin section bearings to minimize weight.

Medical Equipment: Medical devices like CT scanners, MRI machines, and surgical robots benefit from the precision, compact size, and reliability of these bearings.

Semiconductor Manufacturing Equipment: Precision equipment used in semiconductor manufacturing requires high-accuracy bearings with minimal runout.

Machine Tools: Rotary tables, spindles, and other machine tool components rely on bearings that can handle heavy loads and provide precise positioning.

Turntable bearings: High precision turntables rely on these types of bearings.

Slew bearings: These are smaller versions of slew bearings that are used to rotate loads.

Considerations When Selecting

Load Requirements: Determine the axial, radial, and moment loads that the bearing will need to withstand.

Speed Requirements: Consider the operating speed of the bearing and select a bearing with an appropriate speed rating.

Environmental Conditions: Evaluate the operating environment, including temperature, humidity, and exposure to contaminants. This will influence the type of seal and lubricant needed.

Space Constraints: Determine the available space for the bearing and select a thin section bearing with appropriate dimensions.

Precision Requirements: If the application requires high precision, choose a bearing with a tight tolerance class.

Lubrication: Consider the lubrication requirements of the bearing and select a bearing that is compatible with the chosen lubricant. Some sealed bearings are pre-lubricated for life.

Bearing Material: Bearings can be made from steel, stainless steel, ceramic or plastic. The material type affects the load rating, corrosion resistance and temperature limits.