H7XXX Series Ultra-high Speed Angular Contact Ball Bearings

H7XXX series ultra-high speed angular contact ball bearings are products developed for high-speed operation, low temperature rise, and ultra-precision machining. This series mainly includes 70 and 719 series, with contact angles of 15°, 18°, and 25°. The ball materials include steel balls and ceramic balls. The cages include outer ring guided phenolic resin cages, outer ring guided resin cages, and rolling element guided polyamide resin cages. This series achieves high performance characteristics of high rigidity and low heat generation through optimized design.

Product Details

Designation	Dimensions			Basic Loading		Limiting Speed		Weight
	d	D	B	Dynamic C	Static C₀	Greas	Oil	Weight
	mm			kN		r/min		kg
H71902C	15	28	7	3.19	1.4	75000	115000	0.015
H71902C/HC	15	28	7	3.19	1.4	90000	140000	0.013
H71902AC	15	28	7	3.02	1.34	68000	106000	0.015
H71902AC/HC	15	28	7	3.02	1.34	83000	127000	0.013
H7002C	15	32	9	4.42	1.93	68000	106000	0.028
H7002C/HC	15	32	9	4.42	1.93	83000	127000	0.025
H7002AC	15	32	9	4.23	1.83	63000	95000	0.028
H7002AC/HC	15	32	9	4.23	1.83	75000	115000	0.025
H71903C	17	30	7	3.32	1.56	70000	106000	0.016
H71903C/HC	17	30	7	3.32	1.56	83000	127000	0.014
H71903AC	17	30	7	3.19	1.46	63000	95000	0.016
H71903AC/HC	17	30	7	3.19	1.46	75000	115000	0.014
H7003C	17	35	10	5.85	2.55	63000	95000	0.035
H7003C/HC	17	35	10	5.85	2.55	75000	115000	0.03
H7003AC	17	35	10	5.59	2.45	56000	88000	0.035
H7003AC/HC	17	35	10	5.59	2.45	68000	103000	0.03
H71904C	20	37	9	4.88	2.4	56000	88000	0.036
H71904C/HC	20	37	9	4.88	2.4	68000	106000	0.032
H71904AC	20	37	9	4.68	2.28	52000	78000	0.036
H71904AC/HC	20	37	9	4.68	2.28	60000	95000	0.032
H7004C	20	42	12	7.41	3.35	54000	83000	0.064
H7004C/HC	20	42	12	7.41	3.35	65000	100000	0.056
H7004AC	20	42	12	7.15	3.25	48000	75000	0.064
H7004AC/HC	20	42	12	7.15	3.25	58000	88000	0.056
H71905C	25	42	9	5.27	2.85	49000	75000	0.04
H71905C/HC	25	42	9	5.27	2.85	58000	90000	0.036
H71905AC	25	42	9	4.94	2.7	44000	68000	0.04
H71905AC/HC	25	42	9	4.94	2.7	52000	83000	0.036
H7005C	25	47	12	8.32	4.15	46000	70000	0.074
H7005C/HC	25	47	12	8.32	4.15	56000	85000	0.065
H7005AC	25	47	12	7.93	3.9	42000	63000	0.074
H7005AC/HC	25	47	12	7.93	3.9	50000	75000	0.065
H71906C	30	47	9	5.59	3.25	41000	63000	0.05
H71906C/HC	30	47	9	5.59	3.25	49000	75000	0.045
H71906AC	30	47	9	5.27	3.1	37000	58000	0.05
H71906AC/HC	30	47	9	5.27	3.1	44000	70000	0.045
H7006C	30	55	13	9.36	5.2	39000	60000	0.11
H7006C/HC	30	55	13	9.36	5.2	47000	73000	0.1
H7006AC	30	55	13	8.84	5	35000	54000	0.11
H7006AC/HC	30	55	13	8.84	5	42000	65000	0.1
H71907C	35	55	10	7.61	4.75	36000	54000	0.075
H71907C/HC	35	55	10	7.61	4.75	43000	65000	0.067
H71907AC	35	55	10	7.28	4.5	32000	50000	0.075
H71907AC/HC	35	55	10	7.28	4.5	38000	60000	0.067
H7007C	35	62	14	11.4	6.55	34000	50000	0.15
H7007C/HC	35	62	14	11.4	6.55	40000	63000	0.13
H7007AC	35	62	14	11.1	6.3	31000	46000	0.15
H7007AC/HC	35	62	14	11.1	6.3	36000	56000	0.13
H71908C	40	62	12	9.75	6.1	32000	49000	0.1
H71908C/HC	40	62	12	9.75	6.1	38000	58000	0.088
H71908AC	40	62	12	9.23	5.85	28000	44000	0.1
H71908AC/HC	40	62	12	9.23	5.85	34000	52000	0.088
H7008C	40	68	15	12.4	7.65	30000	45000	0.19
H7008C/HC	40	68	15	12.4	7.65	36000	56000	0.17
H7008AC	40	68	15	11.7	7.2	27000	41000	0.19
H7008AC/HC	40	68	15	11.7	7.2	32000	50000	0.17
H71909C	45	68	12	10.1	6.95	29000	44000	0.13
H71909C/HC	45	68	12	10.1	6.95	34000	52000	0.12
H71909AC	45	68	12	9.75	6.55	25000	39000	0.13
H71909AC/HC	45	68	12	9.75	6.55	30000	47000	0.12
H7009C	45	75	16	13	8.5	27000	41000	0.24
H7009C/HC	45	75	16	13	8.5	32000	50000	0.22
H7009AC	45	75	16	12.1	8.15	24000	37000	0.24
H7009AC/HC	45	75	16	12.1	8.15	29000	45000	0.22
H71910C	50	72	12	12.7	8.65	26000	40000	0.13
H71910C/HC	50	72	12	12.7	8.65	32000	48000	0.11
H71910AC	50	72	12	12.1	8.15	23000	36000	0.13
H71910AC/HC	50	72	12	12.1	8.15	28000	43000	0.11
H7010C	50	80	16	15.6	10.6	25000	38000	0.25
H7010C/HC	50	80	16	15.6	10.6	30000	46000	0.23
H7010AC	50	80	16	14.8	10	23000	34000	0.25
H7010AC/HC	50	80	16	14.8	10	27000	41000	0.23
H71911C	55	80	13	15.3	10.6	24000	36000	0.17
H71911C/HC	55	80	13	15.3	10.6	28000	43000	0.14
H71911AC	55	80	13	14.6	10.2	21000	32000	0.17
H71911AC/HC	55	80	13	14.6	10.2	25000	39000	0.14
H7011C	55	90	18	16.8	12.2	22000	34000	0.39
H7011C/HC	55	90	18	16.8	12.2	25000	39000	0.36
H7011AC	55	90	18	15.9	11.6	19000	30000	0.39
H7011AC/HC	55	90	18	15.9	11.6	23000	35000	0.36
H71912 C	60	85	13	16.3	11.8	22000	34 000	0.19
H71912 C/HC	60	85	13	16.3	11.8	26000	40 000	0.16
H71912 AC	60	85	13	15.3	11.2	19500	30 000	0.19
H71912 AC/HC	60	85	13	15.3	11.2	23000	36 000	0.16
H7012 C	60	95	18	17.2	12.9	20000	31 000	0.42
H7012 C/HC	60	95	18	17.2	12.9	24000	37 000	0.39
H7012 AC	60	95	18	16.3	12.2	18000	28 000	0.42
H7012 AC/HC	60	95	18	16.3	12.2	22000	33 000	0.39
H71913 C	65	90	13	16.5	12.5	20000	31 000	0.2
H71913 C/HC	65	90	13	16.5	12.5	24000	38 000	0.17
H71913 AC	65	90	13	15.6	11.8	18000	28 000	0.2
H71913 AC/HC	65	90	13	15.6	11.8	22000	34 000	0.17
H7013 C	65	100	18	20.3	15.6	19000	30 000	0.43
H7013 C/HC	65	100	18	20.3	15.6	22000	34 000	0.39
H7013 AC	65	100	18	19.5	14.6	17000	26 000	0.43
H7013 AC/HC	65	100	18	19.5	14.6	20000	31 000	0.39
H71914 C	70	100	16	22.1	16.3	18500	28 000	0.32
H71914 C/HC	70	100	16	22.1	16.3	22000	34 000	0.27
H71914 AC	70	100	16	20.8	15.3	16500	26 000	0.32
H71914 AC/HC	70	100	16	20.8	15.3	20000	31 000	0.27
H7014 C	70	110	20	23.8	18.3	17000	27 000	0.61
H7014 C/HC	70	110	20	23.8	18.3	20500	32 000	0.56
H7014 AC	70	110	20	22.5	17.3	15500	24 000	0.61
H7014 AC/HC	70	110	20	22.5	17.3	18500	29 000	0.56
H71915 C	75	105	16	22.5	17	17500	27 000	0.34
H71915 C/HC	75	105	16	22.5	17	20500	32 000	0.29
H71915 AC	75	105	16	21.2	16.3	15500	24 000	0.34
H71915 AC/HC	75	105	16	21.2	16.3	18500	29 000	0.29
H7015 C	75	115	20	26	21.6	16000	26 000	0.65
H7015 C/HC	75	115	20	26	21.6	19000	29 000	0.59
H7015 AC	75	115	20	24.7	20.4	14500	23 000	0.65
H7015 AC/HC	75	115	20	24.7	20.4	17000	27 000	0.59
H71916 C	80	110	16	22.5	18	16500	25 000	0.36
H71916 C/HC	80	110	16	22.5	18	19000	30 000	0.31
H71916 AC	80	110	16	21.2	17	14500	22 000	0.36
H71916 AC/HC	80	110	16	21.2	17	17500	27 000	0.31
H7016 C	80	125	22	33.8	28	15000	24 000	0.86
H7016 C/HC	80	125	22	33.8	28	17500	27 000	0.77
H7016 AC	80	125	22	32.5	26.5	13700	21 000	0.86
H7016 AC/HC	80	125	22	32.5	26.5	15500	24 000	0.77
H71917C	85	120	18	29.6	23.2	15 500	24000	0.5
H71917C/HC	85	120	18	29.6	23.2	18 000	28000	0.42
H71917AC	85	120	18	28.1	22	13 700	21000	0.5
H71917AC/HC	85	120	18	28.1	22	16 500	25000	0.42
H7017C	85	130	22	34.5	29	14 000	22000	0.9
H7017C/HC	85	130	22	34.5	29	16 500	26000	0.81
H7017AC	85	130	22	32.5	28	13 000	20000	0.9
H7017AC/HC	85	130	22	32.5	28	15 000	23000	0.81
H71918C	90	125	18	30.2	24.5	14 500	22000	0.54
H71918C/HC	90	125	18	30.2	24.5	17 000	27000	0.46
H71918AC	90	125	18	28.6	23.2	13 000	20000	0.54
H71918AC/HC	90	125	18	28.6	23.2	15 500	24000	0.46
H7018C	90	140	24	35.8	32	13 300	21000	1.2
H7018C/HC	90	140	24	35.8	32	15 500	24000	1.1
H7018AC	90	140	24	33.8	30	12 000	19000	1.2
H7018AC/HC	90	140	24	33.8	30	14 000	22000	1.1
H71919C	95	130	18	30.7	25.5	14 000	21000	0.56
H71919C/HC	95	130	18	30.7	25.5	16 000	25000	0.48
H71919AC	95	130	18	29.1	24	12 300	19000	0.56
H71919AC/HC	95	130	18	29.1	24	15 000	23000	0.48
H7019C	95	145	24	44.2	38	12 700	20000	1.2
H7019C/HC	95	145	24	44.2	38	15 000	23000	1.1
H7019AC	95	145	24	41.6	36	11 500	18000	1.2
H7019AC/HC	95	145	24	41.6	36	13 300	20500	1.1
H71920C	100	140	20	39	31.5	13 300	20500	0.77
H71920C/HC	100	140	20	39	31.5	15 500	24000	0.65
H71920AC	100	140	20	36.4	30	11 500	18000	0.77
H71920AC/HC	100	140	20	36.4	30	13 700	22000	0.65
H7020C	100	150	24	44.9	40	12 300	19000	1.35
H7020C/HC	100	150	24	44.9	40	14 500	22000	1.1
H7020AC	100	150	24	42.3	38	11 200	17500	1.25
H7020AC/HC	100	150	24	42.3	38	12 700	20000	1.1
H71922C	110	150	20	39.7	34.5	12 000	18000	0.83
H71922C/HC	110	150	20	39.7	34.5	14 000	22000	0.7
H71922AC	110	150	20	37.7	32.5	10 300	16000	0.83
H71922AC/HC	110	150	20	37.7	32.5	12 300	19000	0.7
H7022C	110	170	28	47.5	45	10 900	17000	2.1
H7022C/HC	110	170	28	47.5	45	12 700	20000	1.95
H7022AC	110	170	28	44.9	42.5	10 000	15500	2.1
H7022AC/HC	110	170	28	44.9	42.5	11 500	17500	1.95
H71924 C	120	165	22	47.5	40.5	11200	16000	1.1
H71924 C/HC	120	165	22	47.5	40.5	12700	19000	0.93
H71924 AC	120	165	22	44.9	38	9500	15000	1.1
H71924 AC/HC	120	165	22	44.9	38	11500	17500	0.93
H7024 C	120	180	28	57.2	55	9300	14500	2.2
H7024 C/HC	120	180	28	57.2	55	11200	17500	1.95
H7024 AC	120	180	28	54	52	8300	13000	2.2
H7024 AC/HC	120	180	28	54	52	10000	15500	1.95

H7XXX series ultra-high speed angular contact ball bearings can meet the high speed performance of bearings, enhance running accuracy, improve system stiffness, reduce heat generation, reduce noise and vibration, which are the challenges faced by the bearing industry. In applications such as high-speed machining centers, milling machines, internal grinders and woodworking machines, they have high reliability and excellent operating results. Bearings with high-speed design are conducive to bearing radial loads and axial loads in one direction. The larger number of spherical rolling elements in the bearings is also conducive to bearing heavier loads.

The cage guided by the outer ring of the bearing is made of fiber-reinforced phenolic resin, which is to better provide lubrication for the contact area of the spherical rolling element raceway. The optimized guiding clearance between the cage and the outer ring significantly improves the performance under high-speed operation. The chamfer shape at the inner and outer rings has been optimized to improve the installation accuracy, depending on the bearing series and size. This not only simplifies the installation process, but also reduces the risk of damage to related components. The open fit of the H7XXX series ultra-high speed angular contact ball bearings gives the bearings high speed performance.

Our company has professional sales and technical engineers who are responsible for providing users with technical consultation, technical services and product technical training on precision bearing materials and installation and use. Perfect pre-sales, in-sales and after-sales services constitute a guarantee system for high-quality services, providing users with reliable quality bearing products and creating excellent user experience and rich benefits for every customer.

If you have any questions about products and services, please contact the company's service department directly.

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